CN110244276A - A kind of biradical Forward-looking SAR echo admission method and device synchronous with motion parameter data - Google Patents
A kind of biradical Forward-looking SAR echo admission method and device synchronous with motion parameter data Download PDFInfo
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- CN110244276A CN110244276A CN201910549577.0A CN201910549577A CN110244276A CN 110244276 A CN110244276 A CN 110244276A CN 201910549577 A CN201910549577 A CN 201910549577A CN 110244276 A CN110244276 A CN 110244276A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/904—SAR modes
- G01S13/9058—Bistatic or multistatic SAR
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/904—SAR modes
- G01S13/9043—Forward-looking SAR
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/9094—Theoretical aspects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of biradical Forward-looking SAR echo admission method and device synchronous with motion parameter data, described device includes transmitting carrier aircraft and receives carrier aircraft；Emitting carrier aircraft and receiving carrier aircraft includes processor, GPS subsystem, inertial navigation system and the compliant platform connecting with processor；Processor includes ZYNQ processing chip, adc data collector, DDR3 buffer and EMMC memory；It includes the PS processing module and PL programmed logical module being connected that ZYNQ, which handles chip,；Built-in timer, GPS register and inertial navigation register in PL programmed logical module；Adc data collector, DDR3 buffer and EMMC memory are connect with PL programmed logical module；When needing to carry out time calibration, the processor for emitting carrier aircraft and reception carrier aircraft is attached by synchronizing cable；When needing to export the data in EMMC memory, the processor for emitting carrier aircraft and reception carrier aircraft is connected to the network to host computer.The present invention realizes the admission synchronous with motion parameter data of biradical Forward-looking SAR echo.
Description
Technical field
The present invention relates to Radar Technology field, especially a kind of biradical Forward-looking SAR echo is synchronous with motion parameter data to be recorded
Take method and device.
Background technique
Biradical forward sight synthetic aperture radar (SAR) as a member in radar imaging system family, in addition to can with round-the-clock,
Outside all weather operations, there are two extraordinary advantages:
First, since it receives the hardly outside radiated electromagnetic wave of carrier aircraft, it is found the probability being trapped on the spot, it is hidden
Covering property is strong；
Second, the advantages of forword-looking imaging, allow the direction of motion of radar load platform consistent with its imaging direction,
Other SAR radar " wryneck " phenomenons are avoided, so that its working mechanism more meets the perception of people.
In summary advantage has great importance to the engineering chemistry database of the type radar.
The imaging algorithm complexity of biradical Forward-looking SAR is high, it is big, at high cost to build corresponding imaging system difficulty, also, be somebody's turn to do
Type radar needs to go up to the sky to test by aircraft carry, and histological examination expense is also big.Therefore, all it is to most of research of the type radar
Rest on theoretic.
In existing technical report, the team of Chengdu University of Electronic Science and Technology carried out relevant system and hangs winged experiment, will
Radar system is in the case where hanging echo data data record during flying, then in ground processed offline.But due to its experiment
Helicopter platform stability used is not high, lacks necessary inertial navigation system and the reasons such as kinematic parameter monitors, and finally obtains
The biradical Forward-looking SAR image taken is undesirable, and clarity is not high.Therefore, it is necessary to which it is double to complete to design a kind of more reasonable system
Base Forward-looking SAR echo data enrolls function.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the above problems, providing a kind of biradical Forward-looking SAR echo
Admission method and device synchronous with motion parameter data, to complete the admission synchronous with motion parameter data of biradical Forward-looking SAR echo,
So that the later period when carrying out offline biradical Forward-looking SAR imaging data processing, can understand radar from data hangs winged experiment
In actual motion situation, to carry out high-precision motion compensation and obtaining the biradical Forward-looking SAR image of high-resolution to lay the foundation.
A kind of biradical Forward-looking SAR echo provided by the invention admission method synchronous with motion parameter data, including walk as follows
It is rapid:
Step 1, two processors are separately fixed at by transmitting carrier aircraft using fixed wing aircraft and received in carrier aircraft；
Step 2, installation compliant platform fixed transmission carrier aircraft and the radio-frequency antenna for receiving two radars in carrier aircraft；
Step 3, the ZYNQ of the processor of connection transmitting carrier aircraft and reception carrier aircraft handles chip；
Step 4, transmitting carrier aircraft sends enabling signal to carrier aircraft is received, and starts timer；It receives carrier aircraft and receives starting
When signal, also start timer immediately, complete to disconnect transmitting carrier aircraft after preliminary time synchronizes and receives the processor of carrier aircraft
ZYNQ handles chip；
Step 5, when the timer for emitting carrier aircraft and reception carrier aircraft being carried out according to the PPS pulse per second (PPS) that GPS subsystem is transmitted
Between calibrate, the timer stable for extended periods of time both enable is synchronous；
Step 6, the adc data collector of transmitting carrier aircraft and reception carrier aircraft acquires echo data, and is collected echo
Data stamp timestamp one；The GPS data of GPS register real-time update storage, and timestamp is stamped when updating for GPS data
Two；The inertial guidance data of inertial navigation register real-time update storage, and timestamp three is stamped when updating for inertial guidance data；
Step 7, echo data, GPS data and inertial guidance data with timestamp are buffered in DDR3 buffer；
Step 8, when having cached several echo datas with timestamp, GPS data and inertial guidance data in DDR3 buffer
Afterwards, it is written in EMMC memory together；
Step 9, it when needing to export the data in EMMC memory, will store in EMMC memory with timestamp
Echo data, GPS data and inertial guidance data are exported to host computer.
Further, the echo data with timestamp, the GPS data that will be stored in EMMC memory in the step 8
It exports with inertial guidance data to the method for host computer are as follows:
Step 9.1, carrier aircraft will be emitted and passes through network connection with the PS processing module for the ZYNQ processing chip for receiving carrier aircraft
To host computer；
Step 9.2, host computer sends data export instruction to PS processing module by network；
Step 9.3, data export instruction is forwarded in PL programmed logical module by PS processing module by HP0 interface；
Step 9.4, PL programmed logical module reads the data in EMMC memory, and is sent to by HP1 interface
PS processing module；
Step 9.5, PS processing module receives after the data read in EMMC memory, is uploaded in host computer.
Further, echo data, GPS data and inertial guidance data with timestamp are buffered in the step 7
Method in DDR3 buffer: after the every echo data for having acquired a pulse repetition period of adc data collector, in number of echoes
The GPS data and inertial guidance data that timestamp is had according to rear addition, are then buffered in DDR3 buffer.
The present invention also provides a kind of biradical Forward-looking SAR echo recording devices synchronous with motion parameter data, including including hair
It penetrates carrier aircraft and receives carrier aircraft；The transmitting carrier aircraft and reception carrier aircraft include processor, and the GPS subsystem connecting with processor
System, inertial navigation system and compliant platform；The processor includes ZYNQ processing chip, adc data collector, DDR3 buffer
With EMMC memory；The ZYNQ processing chip includes the PS processing module and PL programmed logical module being connected；PL can be compiled
Built-in timer, GPS register and inertial navigation register in journey logic module；Adc data collector, DDR3 buffer and EMMC are deposited
Reservoir is connect with PL programmed logical module；When needing to carry out time calibration, by the transmitting carrier aircraft and carrier aircraft is received
Processor is attached by synchronizing cable；When needing to export the data in EMMC memory, by the transmitting carrier aircraft and connect
The processor for recording machine is connected to the network to host computer.
Preferably, the GPS subsystem, inertial navigation system and compliant platform are by 422 machine interfaces with UART communication protocols
View is connect with processor.
Preferably, the adc data collector, DDR3 buffer and EMMC memory pass through LVCOMS interface and PL can
The connection of programmed logic module.
Preferably, the capacity of the EMMC memory is 768G.
Preferably, the adc data collector is AD9684.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the present invention is based on ZYNQ processing chips to devise biradical Forward-looking SAR echo admission dress synchronous with motion parameter data
It sets, realizes the admission synchronous with motion parameter data of biradical Forward-looking SAR echo, so that the later period is carrying out offline biradical forward sight
When the processing of SAR imaging data, the actual motion situation flown in experiment can be hung from radar is understood in data, to carry out high-precision
Motion compensation and obtain high-resolution biradical Forward-looking SAR image lay the foundation.
2, the present invention uses fixed wing aircraft that stability can be improved when hanging and flying experiment.
3, the present invention has recorded GPS data and inertial guidance data while acquiring echo data.
4, the present invention makes radio-frequency antenna keep permanent using the radio-frequency antenna of servomechanism fixed transmission carrier aircraft and reception carrier aircraft
Fixed direction.
5, the present invention uses high-precision adc data collector, and the sampling signal-to-noise ratio of signal can be improved.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural block diagram of biradical Forward-looking SAR echo recording device synchronous with motion parameter data of the invention.
Fig. 2 is the flow diagram of biradical Forward-looking SAR echo admission method synchronous with motion parameter data of the invention.
Fig. 3 is data record format of the invention.
Fig. 4 is the flow diagram of the data in export EMMC memory of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, claimed invention is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Biradical Forward-looking SAR echo recording device synchronous with motion parameter data of the invention, based on ZYNQ handle chip into
Row design.ZYNQ handles 7 Series FPGAs that chip is xilinx company, has at the ARM of a double-core cortex-A9 in single-chip
Manage device (PS processing module) and logical resource and the much the same FPGA of kintex 7 (PL programmed logical module), in chip PL with
PS passes through therebetween 9 bidirectional interfaces and is communicated, this system can use two high performance data interface HP0 therein and
HP1。
Feature and performance of the invention are described in further detail with reference to embodiments.
A kind of biradical Forward-looking SAR echo provided by the invention recording device synchronous with motion parameter data, as shown in Figure 1,
Including transmitting carrier aircraft and carrier aircraft is received, the transmitting carrier aircraft and reception carrier aircraft include processor, and the GPS connecting with processor
Subsystem, inertial navigation system and compliant platform；The processor includes ZYNQ processing chip, adc data collector, DDR3 slow
Storage and EMMC memory；The ZYNQ processing chip includes the PS processing module and PL programmed logical module being connected；PL
Built-in timer, GPS register and inertial navigation register in programmed logical module；Adc data collector, DDR3 buffer and
EMMC memory is connect with PL programmed logical module；When needing to carry out time calibration, by the transmitting carrier aircraft and reception
The processor of carrier aircraft is attached by synchronizing cable；When needing to export the data in EMMC memory, the transmitting is carried
Machine and the processor for receiving carrier aircraft are connected to the network to host computer.
Illustratively, the GPS subsystem, inertial navigation system and compliant platform are communicated by 422 machine interfaces with UART
Agreement is connect with processor.The adc data collector, DDR3 buffer and EMMC memory pass through LVCOMS interface and PL
Programmed logical module connection.
Optionally, the capacity of the EMMC memory is 768GB, and amount of capacity is set according to demand, and the present embodiment is adopted
It can satisfy continuous collecting data 1 hour or more with the amount of capacity of 768GB.
Optionally, the adc data collector is AD9684, and the acquisition of echo data is carried out using high-precision ADC, can
To improve the sampling signal-to-noise ratio of signal as far as possible.
Based on biradical Forward-looking SAR echo recording device synchronous with motion parameter data, the present invention also provides a kind of double
Base Forward-looking SAR echo admission method synchronous with motion parameter data, as shown in Fig. 2, including the following steps:
1, it hangs and flies experiment
Step 1, two processors are separately fixed at by transmitting carrier aircraft using fixed wing aircraft and received in carrier aircraft；Using solid
Determining wing aircraft can be improved stability.
Step 2, installation compliant platform fixed transmission carrier aircraft and the radio-frequency antenna for receiving two radars in carrier aircraft, make radio frequency day
The direction that line is kept constant.
Step 3, the ZYNQ of the processor of connection transmitting carrier aircraft and reception carrier aircraft handles chip；Optionally, same using one
The ZYNQ for walking cable connection transmitting carrier aircraft and receiving the processor of carrier aircraft handles chip.
Step 4, transmitting carrier aircraft sends enabling signal to carrier aircraft is received, and starts timer；It receives carrier aircraft and receives starting
When signal, also start timer immediately, complete to disconnect transmitting carrier aircraft after preliminary time synchronizes and receives the processor of carrier aircraft
ZYNQ handles chip, transmitting carrier aircraft and reception carrier aircraft lift-off.
Step 5, when the timer for emitting carrier aircraft and reception carrier aircraft being carried out according to the PPS pulse per second (PPS) that GPS subsystem is transmitted
Between calibrate, the timer stable for extended periods of time both enable is synchronous, so that transmitting carrier aircraft and reception carrier aircraft can be synchronous
Work；
Step 6, the adc data collector of transmitting carrier aircraft and reception carrier aircraft acquires echo data, and is collected echo
Data stamp timestamp one；The GPS data of GPS register real-time update storage, and timestamp is stamped when updating for GPS data
Two；The inertial guidance data of inertial navigation register real-time update storage, and timestamp three is stamped when updating for inertial guidance data；GPS subsystem
The GPS data of system passback includes the high information of longitude and latitude, northern speed, eastern speed, day speed etc., receives latest GPS data every time just more
New GPS register makes the data in GPS register keep newest；Inertial guidance data (the radar motion number of inertial navigation system passback
According to) it include x angular speed, y angular speed, z angular speed, course angle, pitch angle, the movement closely bound up with radar platform such as roll angle
Parameter.
Step 7, echo data, GPS data and inertial guidance data with timestamp are buffered in DDR3 buffer；Specifically
Ground, after the every echo data for having acquired a pulse repetition period of adc data collector, the additional band having time after echo data
The GPS data and inertial guidance data of stamp, are then buffered in DDR3 buffer, and the format of record is as shown in Figure 3.
Step 8, as the echo data with timestamp, the GPS for having cached several pulse repetition periods in DDR3 buffer
After data and inertial guidance data, be written in EMMC memory together.
2, data export
Step 9, it when needing to export the data in EMMC memory, will store in EMMC memory with timestamp
Echo data, GPS data and inertial guidance data are exported to host computer.As shown in Figure 4, comprising:
Step 9.1, carrier aircraft will be emitted and passes through network connection with the PS processing module for the ZYNQ processing chip for receiving carrier aircraft
To host computer；
Step 9.2, host computer sends data export instruction to PS processing module by network；
Step 9.3, data export instruction is forwarded in PL programmed logical module by PS processing module by HP0 interface；
Step 9.4, PL programmed logical module reads the data in EMMC memory, and is sent to by HP1 interface
PS processing module；
Step 9.5, PS processing module receives after the data read in EMMC memory, is uploaded in host computer, after
Continuous biradical Forward-looking SAR imaging algorithm processing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of biradical Forward-looking SAR echo admission method synchronous with motion parameter data, which comprises the steps of:
Step 1, two processors are separately fixed at by transmitting carrier aircraft using fixed wing aircraft and received in carrier aircraft；
Step 2, installation compliant platform fixed transmission carrier aircraft and the radio-frequency antenna for receiving two radars in carrier aircraft；
Step 3, the ZYNQ of the processor of connection transmitting carrier aircraft and reception carrier aircraft handles chip；
Step 4, transmitting carrier aircraft sends enabling signal to carrier aircraft is received, and starts timer；It receives carrier aircraft and receives enabling signal
When, also start timer immediately, completes to disconnect after preliminary time synchronizes at the ZYNQ of the processor of transmitting carrier aircraft and reception carrier aircraft
Manage chip；
Step 5, the timer for emitting carrier aircraft and reception carrier aircraft is subjected to time school according to the PPS pulse per second (PPS) that GPS subsystem is transmitted
Standard keeps the timer stable for extended periods of time of the two synchronous；
Step 6, the adc data collector of transmitting carrier aircraft and reception carrier aircraft acquires echo data, and is collected echo data
Stamp timestamp one；The GPS data of GPS register real-time update storage, and timestamp two is stamped when updating for GPS data；
The inertial guidance data of inertial navigation register real-time update storage, and timestamp three is stamped when updating for inertial guidance data；
Step 7, echo data, GPS data and inertial guidance data with timestamp are buffered in DDR3 buffer；
Step 8, after having cached several echo datas with timestamp, GPS data and inertial guidance data in DDR3 buffer, one
And it is written in EMMC memory；
Step 9, when needing to export the data in EMMC memory, the echo with timestamp that will be stored in EMMC memory
Data, GPS data and inertial guidance data are exported to host computer.
2. biradical Forward-looking SAR echo according to claim 1 admission method synchronous with motion parameter data, feature exist
In by the export of the echo data with timestamp stored in EMMC memory, GPS data and inertial guidance data in the step 8
To the method for host computer are as follows:
Step 9.1, the PS processing module that will emit carrier aircraft and handle chip with the ZYNQ for receiving carrier aircraft is supreme by being connected to the network
Position machine；
Step 9.2, host computer sends data export instruction to PS processing module by network；
Step 9.3, data export instruction is forwarded in PL programmed logical module by PS processing module by HP0 interface；
Step 9.4, PL programmed logical module reads the data in EMMC memory, and is sent at PS by HP1 interface
Manage module；
Step 9.5, PS processing module receives after the data read in EMMC memory, is uploaded in host computer.
3. biradical Forward-looking SAR echo according to claim 1 admission method synchronous with motion parameter data, feature exist
In in the step 6 side in DDR3 buffer will be buffered in echo data, GPS data and the inertial guidance data of timestamp
Method: after the every echo data for having acquired a pulse repetition period of adc data collector, the additional band having time after echo data
The GPS data and inertial guidance data of stamp, are then buffered in DDR3 buffer.
4. a kind of biradical Forward-looking SAR echo recording device synchronous with motion parameter data, which is characterized in that including transmitting carrier aircraft and
Receive carrier aircraft；The transmitting carrier aircraft and to receive carrier aircraft include processor, and the GPS subsystem that connect with processor, inertia are led
Boat system and compliant platform；The processor includes that ZYNQ processing chip, adc data collector, DDR3 buffer and EMMC are deposited
Reservoir；The ZYNQ processing chip includes the PS processing module and PL programmed logical module being connected；PL programmable logic mould
Built-in timer, GPS register and inertial navigation register in block；Adc data collector, DDR3 buffer and EMMC memory with
The connection of PL programmed logical module；When needing to carry out time calibration, the transmitting carrier aircraft and the processor for receiving carrier aircraft are led to
Synchronizing cable is crossed to be attached；When needing to export the data in EMMC memory, by the transmitting carrier aircraft and carrier aircraft is received
Processor is connected to the network to host computer.
5. biradical Forward-looking SAR echo according to claim 4 recording device synchronous with motion parameter data, feature exist
In the GPS subsystem, inertial navigation system and compliant platform are connected by 422 machine interfaces with UART communication protocol and processor
It connects.
6. biradical Forward-looking SAR echo according to claim 4 recording device synchronous with motion parameter data, feature exist
In the adc data collector, DDR3 buffer and EMMC memory pass through LVCOMS interface and PL programmed logical module
Connection.
7. biradical Forward-looking SAR echo according to claim 4 recording device synchronous with motion parameter data, feature exist
In the capacity of the EMMC memory is 768G.
8. biradical Forward-looking SAR echo according to claim 4 recording device synchronous with motion parameter data, feature exist
In the adc data collector is AD9684.
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| CN111708001A (en) * | 2020-06-17 | 2020-09-25 | 桂林理工大学 | Laser radar data acquisition system with remote data transmission function |
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| CN113132161A (en) * | 2021-04-14 | 2021-07-16 | 五邑大学 | ZYNQ-based data acquisition and transmission method, device, equipment and storage medium |
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