CN111212335B - Deep space detector radio frequency test system self-checking device and test method thereof - Google Patents
Deep space detector radio frequency test system self-checking device and test method thereof Download PDFInfo
- Publication number
- CN111212335B CN111212335B CN201911296101.7A CN201911296101A CN111212335B CN 111212335 B CN111212335 B CN 111212335B CN 201911296101 A CN201911296101 A CN 201911296101A CN 111212335 B CN111212335 B CN 111212335B
- Authority
- CN
- China
- Prior art keywords
- module
- remote control
- signal
- intermediate frequency
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides a self-checking device of a radio frequency test system of a deep space probe, which comprises a simulation monitoring module, a data acquisition module, a data processing module and a data processing module, wherein the simulation monitoring module is used for controlling the operation of each functional module and monitoring the working state; the CPCI bus is used for interconnection and data interaction of all modules; the down-conversion module is used for receiving an input uplink signal and performing frequency conversion processing; the intermediate frequency receiving module receives and demodulates the intermediate frequency modulation signal; the remote control signal processing module is used for processing and transmitting a remote control subcarrier signal; the distance measurement signal processing module is used for processing and transmitting the distance measurement sound signal; the baseband data processing module processes and sends the analog telemetering data output by the simulation monitoring module; the intermediate frequency modulation module processes and sends the analog telemetering data and the ranging sound signal; and the up-conversion module is used for up-converting the intermediate frequency modulation signal and outputting a downlink signal. The invention can avoid abnormal communication between the deep space probe and the ground radio frequency test system and potential safety hazard of the deep space probe caused by improper setting of the ground radio frequency test system in the test process of the deep space probe.
Description
Technical Field
The invention relates to the technical field of spacecraft testing, in particular to a self-checking device of a radio frequency testing system of a deep space probe and a testing method thereof.
Background
The full and comprehensive ground test is an important guarantee for the successful launch and normal in-orbit operation of the spacecraft, and the test safety is the most basic requirement in the ground test process of the spacecraft. The requirement on one side of ensuring the test safety is to avoid the safety problem caused by ground test equipment, so that the ground test system needs to be fully self-checked before the spacecraft and the ground test system are interconnected, the safety of an interface between the spacecraft and the ground test system is ensured, and the normal function of the ground test system is also ensured. An important aspect of the ground test system self-test is the self-test of the rf test system portion thereof.
With the prosperous development of the aerospace industry in China, the aerospace mission tends to be diversified, the aerospace detection mission gradually expands to the deep space field, some deep space detectors adopt strict development conditions in the aspects of weight, volume, power consumption and the like, the transponder on the aircraft adopts a design scheme of integrating measurement, control and data transmission, the ground radio frequency test system correspondingly adopts a structure of integrating a measurement and control system and a data transmission system, the measurement, control and data transmission self-check functions of the conventional radio frequency test system self-check device are respectively realized through different devices, the measurement, control and data transmission self-check functions are mutually separated and isolated, and the radio frequency test system cannot be fully and comprehensively self-checked.
Through the search of the prior art, the invention patent with application publication number CN 107453800 a discloses a parameter-adjustable satellite measurement and control system equivalent device and a test method thereof, the equivalent device comprises: the system comprises a PXI bus for bearing information interaction of modules, server software for real-time telemetering framing, a main control module for setting parameters and collecting states, a down-conversion module for down-conversion remote control signals, a demodulation module for demodulating intermediate-frequency remote control signals, a modulation module for modulating telemetering baseband data and an up-conversion module for up-conversion intermediate-frequency remote control signals. The device can not simulate the functions of a deep space detector measurement and control data transmission integrated transponder and the instruction response function of an on-board computer.
At present, no other similar related technology is disclosed or reported, and other similar data at home and abroad are not collected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-checking device of a deep space probe radio frequency test system and a test method thereof.
The invention provides a self-checking device of a deep space probe radio frequency test system, which comprises,
the simulation monitoring module: the CPCI bus is connected with the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module, so that the operation of each functional module is controlled, and the working state of each functional module is monitored;
CPCI bus: the device is used for simulating interconnection among the monitoring module, the control down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module and bearing data interaction among the modules;
a down-conversion module: processing uplink remote control and ranging signals input from the outside of the device into intermediate frequency PM modulation signals and then sending the intermediate frequency PM modulation signals to an intermediate frequency receiving module;
an intermediate frequency receiving module: demodulating the received intermediate frequency PM modulation signal into a remote control subcarrier and sending the remote control subcarrier to a remote control signal processing module, demodulating the received intermediate frequency PM modulation signal into a ranging signal and sending the ranging signal to a ranging signal processing module;
the remote control signal processing module: processing the remote control subcarrier signal output by the intermediate frequency receiving module and then sending the processed signal to the simulation monitoring module;
the distance measurement signal processing module: processing the ranging signal output by the intermediate frequency receiving module and then sending the processed ranging signal to the intermediate frequency modulation module;
the baseband data processing module: processing the analog telemetering data output by the simulation monitoring module and then sending the processed analog telemetering data to the intermediate frequency modulation module;
an intermediate frequency modulation module: processing the analog telemetering data sent by the baseband data processing module and the ranging signal forwarded by the ranging signal processing module into an intermediate frequency modulation signal and sending the intermediate frequency modulation signal to the up-conversion module;
an up-conversion module: and performing up-conversion on the intermediate frequency modulation signal output by the intermediate frequency modulation module, and outputting a downlink telemetering, ranging or data transmission signal.
Furthermore, the intermediate frequency modulation module comprises a data transmission modulation unit, a remote measurement modulation unit and a PM modulation unit, and has two working modes of data transmission and measurement and control in a time-sharing manner; under the data transmission working mode, the data transmission modulation unit receives the output data of the baseband data processing module, and outputs a 70MHz intermediate frequency BPSK or QPSK modulation signal after modulation; under a measurement and control working mode, the remote measurement modulation unit and the PM modulation unit work jointly, the remote measurement modulation unit receives output data of the baseband data processing module to form a remote measurement subcarrier signal in a PSK modulation mode, the PM modulation unit receives the remote measurement subcarrier signal and a distance measurement signal forwarded by the distance measurement signal processing module, carries out PM modulation, and outputs a 70MHz intermediate frequency PM modulation signal.
Furthermore, the remote control signal processing module demodulates the received remote control subcarrier signal, performs BCH decoding and descrambling on the demodulated remote control data, and sends the demodulated remote control data to the simulation monitoring module; the baseband data processing module performs channel coding and scrambling processing on the received analog telemetry data and then sends the analog telemetry data to the intermediate frequency modulation module; the intermediate frequency modulation module outputs a data transmission modulation signal after performing data transmission modulation on the received telemetering data, or forms a telemetering subcarrier signal after performing telemetering modulation on the telemetering data, and outputs a PM modulation signal after performing PM modulation on the telemetering subcarrier signal and the ranging signal forwarded by the ranging signal processing module.
Furthermore, after receiving the remote control data output by the remote control signal processing module, the simulation monitoring module extracts a remote control frame, performs CRC (cyclic redundancy check) on the remote control frame, performs format analysis on the remote control frame, extracts a remote control packet contained in the remote control frame, and simulates the response function of the deep space probe to a remote control instruction.
Furthermore, the simulation monitoring module simulates the response function of the deep space probe to the remote control command, the simulation method is that according to the content of the received remote control packet, the corresponding command number is extracted from the locally configured remote control command number, the corresponding remote measurement packet is extracted from the mapping table of the content of the remote control packet and the remote measurement packet, the simulation monitoring module displays the corresponding command number, and the corresponding remote measurement packet is packaged into a remote measurement frame and then is sent to the baseband data processing module.
Further, when the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module and the ranging signal processing module work jointly under the control of the simulation monitoring module, the self-checking device can simulate the receiving and processing functions of the measurement and control data transmission integrated transponder on the uplink remote control signal and the ranging signal which adopt a unified carrier measurement and control system; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module, the self-checking device can simulate the processing and output functions of the measurement and control data transmission integrated transponder on downlink remote measurement signals, ranging signals and data transmission signals.
Furthermore, when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work together under the control of the simulation monitoring module, and the intermediate frequency modulation module works in a measurement and control mode, the self-checking device can simulate the processing and output functions of the measurement and control data transmission integrated transponder on the downlink telemetering signals and the distance measuring signals adopting a unified carrier measurement and control system; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module and the intermediate frequency modulation module works in a data transmission mode, the self-checking device can simulate the processing and output functions of the measurement and control data transmission integrated transponder on downlink data transmission signals.
The invention also provides a testing method of the self-checking device of the deep space probe radio frequency testing system, which comprises the following steps:
s1, after the deep space probe radio frequency test system is built, the self-checking device is connected into the deep space probe radio frequency test system;
s2, setting the radio frequency test system of the deep space probe into a working mode of 'sending remote control and ranging signals in an uplink mode and receiving remote control and ranging signals in a downlink mode'; according to the working state of the radio frequency test system, corresponding working parameter setting is carried out on the self-checking device, wherein the intermediate frequency modulation module works in a measurement and control mode;
s3, starting the self-checking device to work, and sending an uplink remote control signal and an uplink ranging signal by the deep space probe radio frequency testing system;
s4, checking the states of the uplink remote control signal and the uplink ranging signal in a simulation monitoring module of the self-checking device; if the working parameter settings of the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module and the simulation monitoring module of the self-checking device are abnormal, whether the working parameter settings are matched with the working state of the deep space probe radio frequency testing system is rechecked;
s5, the deep space probe radio frequency test system checks the states of the downlink telemetering signals and the downlink ranging signals sent by the self-checking device; if the operation state of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is abnormal, whether the operation parameter setting of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is matched with the operation state of the radio frequency testing system of the deep space probe is rechecked;
s6, if the receiving and processing of the self-checking device to the uplink remote control signal and the uplink ranging signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink remote measuring signal and the downlink ranging signal are normal, the deep space probe radio frequency testing system sends the remote control and ranging signal in the uplink mode, and receives the remote measuring and ranging signal in the downlink mode, and the self-checking of the working mode is finished;
s7, the self-checking device stops working, the deep space probe radio frequency testing system is set to be in a working mode of 'sending remote control signals in an uplink mode and receiving QPSK modulation signals in a downlink mode', corresponding working parameter setting is carried out on the self-checking device according to the working state of the radio frequency testing system, and an intermediate frequency modulation module works in the QPSK mode in the data transmission mode;
s8, starting the self-checking device to work, and sending an uplink remote control signal by the deep space probe radio frequency testing system;
s9, checking the state of the uplink remote control signal in a simulation monitoring module of the self-checking device; if the working parameters of the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module and the simulation monitoring module of the self-checking device are abnormal, whether the working parameter settings are matched with the working state of the deep space probe radio frequency testing system is rechecked;
s10, the deep space probe radio frequency test system checks the state of the downlink data transmission QPSK modulation signal sent by the self-checking device; if the operation state of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is abnormal, whether the operation parameter setting of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is matched with the operation state of the radio frequency testing system of the deep space probe is rechecked;
s11, if the receiving and processing of the self-checking device to the uplink remote control signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink data transmission QPSK modulation signal are normal, the deep space probe radio frequency testing system sends the remote control signal in the uplink mode, receives the data transmission QPSK modulation signal in the downlink mode, and the working mode self-checking is finished;
s12, finishing self-checking of the deep space probe radio frequency testing system by the self-checking device.
Further, in step S1, the self-testing device is connected to the deep space probe rf testing system, and the method includes connecting a remote uplink signal cable to a rf signal input port of the device, and connecting a remote downlink signal cable to a rf signal output port of the device.
Further, in step S2, performing corresponding setting of working parameters on the self-checking device, including configuring a mapping table of a remote control command number, contents of a remote control packet, and a telemetry packet, and setting working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a ranging signal processing module, a baseband data processing module, an intermediate frequency modulation module, and an up-conversion module; in step S7, corresponding working parameter settings are performed on the self-checking device, including configuring a mapping table of a remote control command number, contents of a remote control packet, and a telemetry packet, and setting working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a baseband data processing module, an intermediate frequency modulation module, and an up-conversion module.
Compared with the prior art, the invention has the following beneficial effects: the self-checking device of the deep space probe radio frequency test system can simulate the function of a measurement and control data transmission integrated transponder of the deep space probe and the instruction response function of an on-board computer, carry out self-checking on the ground radio frequency test system before the deep space probe and the ground radio frequency test system are interconnected, check the work coordination and the interface matching of the deep space probe and the radio frequency test system thereof, and avoid abnormal communication between the deep space probe and the ground radio frequency test system and potential safety hazards of the deep space probe caused by improper setting of the ground radio frequency test system in the test process of the deep space probe.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a block diagram of the self-checking device of the deep space probe RF test system of the present invention;
fig. 2 is a flow chart of a testing method of the self-checking device of the deep space probe radio frequency testing system of the invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The invention discloses a self-checking device of a deep space detector radio frequency test system, which comprises: the CPCI bus is used for interconnecting all the functional modules and bearing data interaction among all the modules; the simulation monitoring module is used for controlling the operation of each functional module and monitoring the working state of each functional module; the down-conversion module is used for receiving the X-frequency band radio frequency signal and down-converting the radio frequency signal to a 70MHz intermediate frequency signal; the intermediate frequency receiving module is used for receiving the intermediate frequency PM modulation signal, and carrying out carrier capture and tracking and PM demodulation; the remote control signal processing module is used for demodulating the remote control subcarrier signal and carrying out BCH decoding and descrambling processing on the demodulated remote control data; the distance measurement signal processing module is used for forwarding the distance measurement sound signals and can perform distance simulation and speed simulation; the baseband data processing module is used for carrying out channel coding, scrambling and other processing on the analog telemetering data; the intermediate frequency modulation module is used for carrying out telemetering modulation on the telemetering data to form a telemetering subcarrier signal, carrying out PM modulation on the telemetering subcarrier signal and the distance measuring signal forwarded by the distance measuring signal processing module and then outputting a PM modulation signal, or is used for carrying out data transmission modulation on the telemetering data and then outputting a data transmission modulation signal; and the up-conversion module is used for up-converting the 70MHz intermediate frequency modulation signal and outputting an X frequency band radio frequency signal.
The invention can simulate the function of a measurement and control data transmission integrated transponder of the deep space probe and the instruction response function of an on-board computer, carry out self-checking on the ground radio frequency test system before the deep space probe is interconnected with the ground radio frequency test system, check the work coordination and the interface matching of the deep space probe and the radio frequency test system thereof, and avoid the abnormal communication between the deep space probe and the ground radio frequency test system and the potential safety hazard of the deep space probe caused by the improper setting of the ground radio frequency test system in the test process of the deep space probe.
The present invention will be described in detail below.
As shown in fig. 1, a deep space probe radio frequency test system self-checking device includes a CPCI bus, a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a ranging signal processing module, a baseband data processing module, an intermediate frequency modulation module, and an up-conversion module.
The simulation monitoring module: the CPCI bus is connected with each functional module to control the operation of each functional module and monitor the working state of each functional module; specifically, the down-conversion module is connected with the down-conversion module, the working parameters of the down-conversion module are set, and the working state information of the down-conversion module is collected; the system is connected with the intermediate frequency receiving module, sets working parameters of the intermediate frequency receiving module and collects working state information of the intermediate frequency receiving module; the remote control signal processing module is connected with the remote control signal processing module, sets working parameters of the remote control signal processing module, collects working state information of the remote control signal processing module and receives remote control data processed by the remote control signal processing module; the distance measurement signal processing module is connected with the base station, and is used for setting working parameters of the distance measurement signal processing module and acquiring working state information of the distance measurement signal processing module; the base band data processing module is connected with the base band data processing module, sets working parameters of the base band data processing module, collects working state information of the base band data processing module, and sends analog telemetering data to the base band data processing module; the system is connected with the intermediate frequency modulation module, sets working parameters of the intermediate frequency modulation module and collects working state information of the intermediate frequency modulation module; and the upper frequency conversion module is connected with the lower frequency conversion module, and is used for setting working parameters of the upper frequency conversion module and collecting working state information of the upper frequency conversion module.
CPCI bus: the device is used for simulating the interconnection among the monitoring module, the control down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module and bearing the data interaction among the modules.
A down-conversion module: the monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module and reports the module state information through the CPCI bus; and the intermediate frequency receiving module is connected with the X frequency band radio frequency PM modulation signal input from the outside of the receiving device, and the signal is down-converted to a 70MHz intermediate frequency signal and is sent to the intermediate frequency receiving module.
An intermediate frequency receiving module: the monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module and reports the module state information through the CPCI bus; the remote control signal processing module is connected with the receiver, and is used for carrying out carrier capture and tracking and PM demodulation on the received intermediate frequency PM modulation signal and then sending the demodulated remote control subcarrier to the remote control signal processing module; the down-conversion module is connected with the receiver and used for receiving the intermediate frequency PM modulation signal output by the down-conversion module; and the distance measurement signal processing module is connected with the distance measurement signal processing module and sends the demodulated distance measurement sound signal to the distance measurement signal processing module.
The remote control signal processing module: the simulation monitoring module is connected with the remote control module, receives the control of the simulation monitoring module, reports the module state information through a CPCI bus, and sends remote control data to the simulation monitoring module; and the intermediate frequency receiving module is connected with the base station and used for receiving the remote control subcarrier signals output by the intermediate frequency receiving module, demodulating the remote control subcarrier signals and carrying out BCH decoding and descrambling on the demodulated remote control data.
The distance measurement signal processing module: the monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module and reports the module state information through the CPCI bus; the distance measurement sound signal is transmitted and can be subjected to distance simulation and speed simulation; and the distance measurement sound signal is forwarded to the intermediate frequency modulation module.
The baseband data processing module: the simulation monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module, reports the module state information through a CPCI bus, receives the analog telemetering data output by the simulation monitoring module, and performs channel coding, scrambling and other processing on the analog telemetering data; and the analog telemetering data is connected with the intermediate frequency modulation module and outputs the analog telemetering data which is processed by channel coding, scrambling and the like to the intermediate frequency modulation module.
An intermediate frequency modulation module: the monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module and reports the module state information through the CPCI bus; the distance measurement signal processing module is connected with the base station and receives the distance measurement sound transmitted by the distance measurement signal processing module; and the remote measuring sub-carrier signal and the distance measuring signal forwarded by the distance measuring signal processing module are subjected to PM modulation, and then PM intermediate frequency modulation signals are output and sent to the upper frequency conversion module.
An up-conversion module: the monitoring module is connected with the simulation monitoring module, receives the control of the simulation monitoring module and reports the module state information through the CPCI bus; and the intermediate frequency modulation module is connected with the intermediate frequency modulation module, receives the intermediate frequency modulation signal output by the intermediate frequency modulation module, performs up-conversion on the 70MHz intermediate frequency modulation signal, and outputs an X-frequency band radio frequency signal, namely a downlink telemetering, ranging or data transmission signal.
In the self-checking device, the intermediate frequency modulation module comprises a data transmission modulation unit, a remote measurement modulation unit and a PM modulation unit, and has two working modes of data transmission and measurement and control, and the two working modes are carried out in a time-sharing mode under the control of the simulation monitoring module: under the data transmission working mode, the data transmission modulation unit receives the output data of the baseband data processing module, and outputs a 70MHz intermediate frequency BPSK or QPSK modulation signal after modulation; under a measurement and control working mode, the remote measurement modulation unit and the PM modulation unit work jointly, the remote measurement modulation unit receives output data of the baseband data processing module to form a remote measurement subcarrier signal in a PSK modulation mode, the PM modulation unit receives the remote measurement subcarrier signal and a distance measurement signal forwarded by the distance measurement signal processing module, carries out PM modulation, and outputs a 70MHz intermediate frequency PM modulation signal.
In the self-checking device, after receiving remote control data output by a remote control signal processing module, an emulation monitoring module can extract a remote control frame, perform CRC (cyclic redundancy check) on the remote control frame, perform format analysis on the remote control frame, extract a remote control packet contained in the remote control frame and simulate the response function of a deep space detector to a remote control instruction.
The self-checking device can simulate the function of a deep space detector measurement and control data transmission integrated transponder, and can simulate the receiving and processing functions of the measurement and control data transmission integrated transponder on an uplink remote control signal and a ranging signal which adopt a unified carrier measurement and control system when a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module and a ranging signal processing module work jointly under the control of a simulation monitoring module; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work together under the control of the simulation monitoring module and the intermediate frequency modulation module works in a measurement and control mode, the functions of processing and outputting downlink telemetering signals and ranging signals which adopt a unified carrier measurement and control system by a measurement and control integrated transponder can be simulated; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module and the intermediate frequency modulation module works in a data transmission mode, the processing and output functions of the measurement and control data transmission integrated transponder on downlink data transmission signals can be simulated.
When the device is applied to the self-checking of the radio frequency test system of the deep space test system, the self-checking device can simulate the working mode of 'receiving remote control and ranging signals in an uplink direction and sending remote control and ranging signals in a downlink direction' of a deep space detector measurement and control integrated transponder when the simulation monitoring module, the down-conversion module, the intermediate-frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate-frequency modulation module and the up-conversion module work simultaneously, and the intermediate-frequency modulation module works in the measurement and control mode; when the simulation monitoring module, the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work simultaneously and the intermediate frequency modulation module works in a data transmission QPSK mode, the working mode that a deep space detector measures and controls a data transmission integrated transponder to receive a remote control signal in an uplink mode and send a data transmission QPSK modulation signal in a downlink mode can be simulated.
As shown in fig. 2, the present invention further provides a testing method of the self-testing apparatus of the deep space probe radio frequency testing system, which includes the following steps:
s1, after the deep space probe radio frequency test system is built, the self-test device is connected into the deep space probe radio frequency test system, and the method comprises the steps of connecting a remote control uplink signal cable into a radio frequency signal input port of the device and connecting a remote control downlink signal cable into a radio frequency signal output port of the self-test device;
s2, setting the radio frequency test system of the deep space probe into a working mode of 'sending remote control and ranging signals in an uplink mode and receiving remote control and ranging signals in a downlink mode'; the self-checking device is powered on and started up, corresponding working parameter setting is carried out on the self-checking device according to the working state of the radio frequency test system, the working parameter setting comprises a mapping table for configuring a remote control instruction number, remote control packet contents and a remote measurement packet, and working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a ranging signal processing module, a baseband data processing module, an intermediate frequency modulation module and an up-conversion module are set, wherein the intermediate frequency modulation module works in a measurement and control mode;
s3, starting the self-checking device to work, and sending an uplink remote control signal and an uplink ranging signal by the deep space probe radio frequency testing system;
s4, checking the receiving demodulation state of the remote control signal and the remote control data processing results such as the remote control frame CRC check result, the remote control frame format analysis result, the remote control packet content, the remote control instruction number and the like in the simulation monitoring module of the self-checking device, and checking the receiving and forwarding states of the ranging signal; if the remote control signal demodulation is abnormal, the remote control data processing result is wrong or the receiving and forwarding states of the ranging signals are abnormal, whether the working parameter settings of a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a ranging signal processing module and a simulation monitoring module of the device are matched with the working state of a deep space probe radio frequency testing system is rechecked;
s5, the deep space probe radio frequency test system checks the receiving and demodulating state of the downlink telemetering signals sent by the self-checking device, telemetering data processing results such as telemetering frame analysis and telemetering channel display, and checks the receiving state and the distance measuring results of the downlink distance measuring signals; if the abnormal condition exists, whether the working parameter settings of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the device are matched with the working state of the deep space probe radio frequency test system is rechecked;
s6, if the receiving and processing of the self-checking device to the uplink remote control signal and the uplink ranging signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink remote measuring signal and the downlink ranging signal are normal, the deep space probe radio frequency testing system sends the remote control and ranging signal in the uplink mode, and receives the remote measuring and ranging signal in the downlink mode, and the self-checking of the working mode is finished;
s7, the self-checking device stops working, the deep space probe radio frequency testing system is set to be in a working mode of 'sending a remote control signal in an uplink mode and receiving a data transmission QPSK modulation signal in a downlink mode', corresponding working parameter setting is carried out on the device according to the working state of the radio frequency testing system, the working parameter setting comprises the configuration of a remote control instruction number, a mapping table of remote control packet contents and a mapping table of a remote measuring packet, and working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a baseband data processing module, an intermediate frequency modulation module and an up-conversion module are set, wherein the intermediate frequency modulation module works in the data transmission QPSK mode;
s8, starting the self-checking device to work, and sending an uplink remote control signal by the deep space probe radio frequency testing system;
s9, checking the receiving demodulation state of the remote control signal and the remote control frame CRC check result, the remote control frame format analysis result, the remote control packet content, the remote control instruction number and other remote control data processing results in the simulation monitoring module of the self-checking device; if the remote control signal demodulation is abnormal or the remote control data processing result is wrong, whether the working parameter settings of a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module and a simulation monitoring module of the device are matched with the working state of the deep space probe radio frequency testing system is rechecked;
s10, the deep space probe radio frequency test system checks the receiving and demodulating state of the downlink data transmission QPSK modulation signal sent by the self-test device and the telemetering data processing results of telemetering frame analysis, telemetering channel display and the like; if the abnormal condition exists, whether the working parameter settings of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the device are matched with the working state of the deep space probe radio frequency test system is rechecked;
s11, if the receiving and processing of the self-checking device to the uplink remote control signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink data transmission QPSK modulation signal are normal, the deep space probe radio frequency testing system sends the remote control signal in the uplink mode, receives the data transmission QPSK modulation signal in the downlink mode, and the working mode self-checking is finished;
s12, finishing self-checking of the deep space probe radio frequency testing system by the self-checking device.
The invention is suitable for self-checking of the deep space detector radio frequency test system adopting the measurement, control and data transmission integrated scheme, can simulate the function of a measurement, control and data transmission integrated transponder of the deep space detector and the instruction response function of an on-board computer, can carry out self-checking on the measurement, control and test system of the X-frequency band unified carrier system of the deep space detector, and can also carry out self-checking on the data transmission test system of the X-frequency band QPSK or BPSK modulation and demodulation mode.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A self-checking device of a deep space probe radio frequency test system is characterized by comprising,
the simulation monitoring module: the CPCI bus is connected with the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module, so that the operation of each functional module is controlled, and the working state of each functional module is monitored;
CPCI bus: the device is used for simulating interconnection among the monitoring module, the control down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module and bearing data interaction among the modules;
a down-conversion module: processing uplink remote control and ranging signals input from the outside of the device into intermediate frequency PM modulation signals and then sending the intermediate frequency PM modulation signals to an intermediate frequency receiving module;
an intermediate frequency receiving module: demodulating the received intermediate frequency PM modulation signal into a remote control subcarrier and sending the remote control subcarrier to a remote control signal processing module, demodulating the received intermediate frequency PM modulation signal into a ranging signal and sending the ranging signal to a ranging signal processing module;
the remote control signal processing module: processing the remote control subcarrier signal output by the intermediate frequency receiving module and then sending the processed signal to the simulation monitoring module;
the distance measurement signal processing module: processing the ranging signal output by the intermediate frequency receiving module and then sending the processed ranging signal to the intermediate frequency modulation module;
the baseband data processing module: processing the analog telemetering data output by the simulation monitoring module and then sending the processed analog telemetering data to the intermediate frequency modulation module;
an intermediate frequency modulation module: processing the analog telemetering data sent by the baseband data processing module and the ranging signal forwarded by the ranging signal processing module into an intermediate frequency modulation signal and sending the intermediate frequency modulation signal to the up-conversion module; the intermediate frequency modulation module comprises a data transmission modulation unit, a remote measurement modulation unit and a PM modulation unit, and has two working modes of data transmission and measurement and control in a time-sharing manner; under the data transmission working mode, the data transmission modulation unit receives the output data of the baseband data processing module, and outputs a 70MHz intermediate frequency BPSK or QPSK modulation signal after modulation; under a measurement and control working mode, the remote measurement modulation unit and the PM modulation unit work in a combined mode, the remote measurement modulation unit receives output data of the baseband data processing module to form a remote measurement subcarrier signal in a PSK modulation mode, the PM modulation unit receives the remote measurement subcarrier signal and a distance measurement signal forwarded by the distance measurement signal processing module, performs PM modulation and outputs a 70MHz intermediate frequency PM modulation signal;
an up-conversion module: and performing up-conversion on the intermediate frequency modulation signal output by the intermediate frequency modulation module, and outputting a downlink telemetering, ranging or data transmission signal.
2. The deep space probe radio frequency test system self-checking device of claim 1, wherein the remote control signal processing module demodulates a received remote control subcarrier signal, performs BCH decoding and descrambling on the demodulated remote control data, and sends the demodulated remote control data to the simulation monitoring module; the baseband data processing module performs channel coding and scrambling processing on the received analog telemetry data and then sends the analog telemetry data to the intermediate frequency modulation module; the intermediate frequency modulation module outputs a data transmission modulation signal after performing data transmission modulation on the received telemetering data, or forms a telemetering subcarrier signal after performing telemetering modulation on the telemetering data, and outputs a PM modulation signal after performing PM modulation on the telemetering subcarrier signal and the ranging signal forwarded by the ranging signal processing module.
3. The self-checking device of the radio frequency test system of the deep space probe as claimed in claim 1, wherein the simulation monitoring module extracts a remote control frame, performs CRC check on the remote control frame, performs format analysis on the remote control frame, extracts a remote control packet included in the remote control frame, and simulates a response function of the deep space probe to a remote control command after receiving the remote control data output by the remote control signal processing module.
4. The deep space probe radio frequency test system self-checking device according to claim 3, wherein the simulation monitoring module simulates a response function of the deep space probe to a remote control command, the simulation method is that according to the content of a received remote control packet, a corresponding command number is extracted from a locally configured remote control command number, a corresponding telemetry packet is extracted from a mapping table of the content of the remote control packet and the telemetry packet, the simulation monitoring module displays the corresponding command number, and the corresponding telemetry packet is packaged into a telemetry frame and then sent to the baseband data processing module.
5. The deep space detector radio frequency test system self-checking device according to claim 1, characterized in that when the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module and the ranging signal processing module work jointly under the control of the simulation monitoring module, the self-checking device can simulate the receiving and processing functions of the measurement and control data transmission integrated transponder on the uplink remote control signal and the ranging signal adopting a unified carrier measurement and control system; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module, the self-checking device can simulate the processing and output functions of the measurement and control data transmission integrated transponder on downlink remote measurement signals, ranging signals and data transmission signals.
6. The deep space detector radio frequency test system self-checking device according to claim 5, characterized in that when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module, and the intermediate frequency modulation module works in a measurement and control mode, the self-checking device can simulate the processing and output functions of a measurement and control data transmission integrated transponder on a downlink telemetering signal and a ranging signal which adopt a unified carrier measurement and control system; when the baseband data processing module, the intermediate frequency modulation module and the up-conversion module work jointly under the control of the simulation monitoring module and the intermediate frequency modulation module works in a data transmission mode, the self-checking device can simulate the processing and output functions of the measurement and control data transmission integrated transponder on downlink data transmission signals.
7. A testing method of the self-checking device of the radio frequency testing system of the deep space probe as claimed in claims 1 to 6, characterized in that it comprises the following steps:
s1, after the deep space probe radio frequency test system is built, the self-checking device is connected into the deep space probe radio frequency test system;
s2, setting the radio frequency test system of the deep space probe into a working mode of 'sending remote control and ranging signals in an uplink mode and receiving remote control and ranging signals in a downlink mode'; according to the working state of the radio frequency test system, corresponding working parameter setting is carried out on the self-checking device, wherein the intermediate frequency modulation module works in a measurement and control mode;
s3, starting the self-checking device to work, and sending an uplink remote control signal and an uplink ranging signal by the deep space probe radio frequency testing system;
s4, checking the states of the uplink remote control signal and the uplink ranging signal in a simulation monitoring module of the self-checking device; if the working parameter settings of the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module, the ranging signal processing module and the simulation monitoring module of the self-checking device are abnormal, whether the working parameter settings are matched with the working state of the deep space probe radio frequency testing system is rechecked;
s5, the deep space probe radio frequency test system checks the states of the downlink telemetering signals and the downlink ranging signals sent by the self-checking device; if the operation state of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is abnormal, whether the operation parameter setting of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is matched with the operation state of the radio frequency testing system of the deep space probe is rechecked;
s6, if the receiving and processing of the self-checking device to the uplink remote control signal and the uplink ranging signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink remote measuring signal and the downlink ranging signal are normal, the deep space probe radio frequency testing system sends the remote control and ranging signal in the uplink mode, and receives the remote measuring and ranging signal in the downlink mode, and the self-checking of the working mode is finished;
s7, the self-checking device stops working, the deep space probe radio frequency testing system is set to be in a working mode of 'sending remote control signals in an uplink mode and receiving QPSK modulation signals in a downlink mode', corresponding working parameter setting is carried out on the self-checking device according to the working state of the radio frequency testing system, and an intermediate frequency modulation module works in the QPSK mode in the data transmission mode;
s8, starting the self-checking device to work, and sending an uplink remote control signal by the deep space probe radio frequency testing system;
s9, checking the state of the uplink remote control signal in a simulation monitoring module of the self-checking device; if the working parameters of the down-conversion module, the intermediate frequency receiving module, the remote control signal processing module and the simulation monitoring module of the self-checking device are abnormal, whether the working parameter settings are matched with the working state of the deep space probe radio frequency testing system is rechecked;
s10, the deep space probe radio frequency test system checks the state of the downlink data transmission QPSK modulation signal sent by the self-checking device; if the operation state of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is abnormal, whether the operation parameter setting of the simulation monitoring module, the baseband data processing module, the intermediate frequency modulation module and the up-conversion module of the self-checking device is matched with the operation state of the radio frequency testing system of the deep space probe is rechecked;
s11, if the receiving and processing of the self-checking device to the uplink remote control signal of the deep space probe radio frequency testing system are normal, and the receiving and processing of the deep space probe radio frequency testing system to the downlink data transmission QPSK modulation signal are normal, the deep space probe radio frequency testing system sends the remote control signal in the uplink mode, receives the data transmission QPSK modulation signal in the downlink mode, and the working mode self-checking is finished;
s12, finishing self-checking of the deep space probe radio frequency testing system by the self-checking device.
8. The method for testing the self-checking device of the radio frequency testing system of the deep space probe as claimed in claim 7, wherein in the step S1, the step of connecting the self-checking device into the radio frequency testing system of the deep space probe includes connecting a remote uplink signal cable into a radio frequency signal input port of the device and connecting a remote downlink signal cable into a radio frequency signal output port of the device.
9. The method for testing the self-checking device of the radio frequency testing system of the deep space probe according to claim 7, wherein in the step S2, the self-checking device is configured with corresponding working parameters, including a mapping table for configuring a remote control command number, contents of a remote control packet and a telemetry packet, and working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a ranging signal processing module, a baseband data processing module, an intermediate frequency modulation module and an up-conversion module; in step S7, corresponding working parameter settings are performed on the self-checking device, including configuring a mapping table of a remote control command number, contents of a remote control packet, and a telemetry packet, and setting working parameters of a simulation monitoring module, a down-conversion module, an intermediate frequency receiving module, a remote control signal processing module, a baseband data processing module, an intermediate frequency modulation module, and an up-conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296101.7A CN111212335B (en) | 2019-12-16 | 2019-12-16 | Deep space detector radio frequency test system self-checking device and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296101.7A CN111212335B (en) | 2019-12-16 | 2019-12-16 | Deep space detector radio frequency test system self-checking device and test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111212335A CN111212335A (en) | 2020-05-29 |
| CN111212335B true CN111212335B (en) | 2021-09-14 |
Family
ID=70789234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911296101.7A Active CN111212335B (en) | 2019-12-16 | 2019-12-16 | Deep space detector radio frequency test system self-checking device and test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111212335B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333041A (en) * | 2020-10-23 | 2021-02-05 | 上海航天测控通信研究所 | Space air-to-air communication testing device |
| CN112671488A (en) * | 2020-12-15 | 2021-04-16 | 上海卫星工程研究所 | Spacecraft channel simulation device and application method thereof |
| CN112947521B (en) * | 2021-02-10 | 2022-10-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Multifunctional simulation platform of spacecraft measurement and control system |
| CN113746582B (en) * | 2021-08-19 | 2023-12-12 | 上海卫星工程研究所 | Deep space exploration circulator-lander interface test system |
| CN113794500B (en) * | 2021-08-31 | 2023-05-05 | 上海卫星工程研究所 | Combined test system and method for deep space probe |
| CN114465672B (en) * | 2022-01-14 | 2023-12-12 | 上海卫星工程研究所 | Test method and system for radio frequency forwarding system of Mars detector emission field emission area |
| CN114630210A (en) * | 2022-03-24 | 2022-06-14 | 深圳航天东方红卫星有限公司 | Automatic testing system for space single-machine product and implementation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333057A (en) * | 2011-05-25 | 2012-01-25 | 北京航空航天大学 | Micro/nano satellite measure and control communication integral transmitting and receiving system and realization method thereof |
| CN203951478U (en) * | 2014-06-24 | 2014-11-19 | 上海宇航***工程研究所 | A kind of based on lunar orbit world information link automatization simulation test platform |
| CN109669472A (en) * | 2018-12-26 | 2019-04-23 | 上海微小卫星工程中心 | A kind of generic concept star verification platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6377108B2 (en) * | 2016-09-15 | 2018-08-22 | 株式会社Ｓｕｂａｒｕ | Anomaly detection method for drone control system |
-
2019
- 2019-12-16 CN CN201911296101.7A patent/CN111212335B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102333057A (en) * | 2011-05-25 | 2012-01-25 | 北京航空航天大学 | Micro/nano satellite measure and control communication integral transmitting and receiving system and realization method thereof |
| CN203951478U (en) * | 2014-06-24 | 2014-11-19 | 上海宇航***工程研究所 | A kind of based on lunar orbit world information link automatization simulation test platform |
| CN109669472A (en) * | 2018-12-26 | 2019-04-23 | 上海微小卫星工程中心 | A kind of generic concept star verification platform |
Non-Patent Citations (1)
| Title |
|---|
| 基于高级在轨***的测控数传一体化方案;秦玉峰等;《飞行器测控学报》;20161031(第05期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111212335A (en) | 2020-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111212335B (en) | Deep space detector radio frequency test system self-checking device and test method thereof | |
| CN107453800A (en) | The satellite TT＆C system equivalent device and its method of testing of Parameter adjustable | |
| CA2666567C (en) | Radio communication system for acars messages exchange | |
| CN104333408B (en) | A kind of Inter-satellite Communication System for being used to realize high dynamic and low time delay Space teleoperation | |
| US8478455B2 (en) | Vehicle control station with back-up VSM for remotely controlling an unmanned vehicle, and method | |
| CN101820307B (en) | Wireless communication module and wireless communication satellite using module | |
| CN104036706A (en) | Fault detection method, device and system | |
| CN107294627B (en) | Whole machine testing and aging method and system for RRU | |
| CN103368663B (en) | A kind of commissioning method for testing for radio frequency remote base station and system | |
| CN112937914B (en) | Ground simulation instruction processing method for aircraft complete machine test | |
| CN113472608A (en) | VDES simulation multi-user test system and test method | |
| CN113030588A (en) | Airport communication navigation equipment electromagnetic environment detecting system based on unmanned aerial vehicle | |
| CN103873831B (en) | A kind of telecommunication satellite video monitor test system | |
| CN106342067B (en) | Satellite test control device | |
| CN113746582B (en) | Deep space exploration circulator-lander interface test system | |
| CN110138416A (en) | The spaceborne wired multi-channel detection probabilistic testing method of AIS ship oceangoing ship | |
| CN107749775A (en) | Satellite data transmission and the full link data Auto-Test System of relaying multichannel and method | |
| CN102567162B (en) | A kind of physical layer system demo plant based on DSP core and method | |
| CN106656362B (en) | Detection method and device | |
| CN101668228A (en) | Device and method for testing interface | |
| CN114189272A (en) | Comprehensive test system of microsatellite | |
| CN113794527B (en) | Adaptive frame length wired telemetry forwarding system and self-checking method for deep space exploration circulator | |
| CN115913333B (en) | Beidou satellite network | |
| CN111131929B (en) | Spacecraft measurement and control data transmission signal processing and data distribution device and communication method thereof | |
| US20150142357A1 (en) | Analysis device, analysis method, and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |