CN107450083A - Beidou center type commands machine - Google Patents
Beidou center type commands machine Download PDFInfo
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- CN107450083A CN107450083A CN201710852986.9A CN201710852986A CN107450083A CN 107450083 A CN107450083 A CN 107450083A CN 201710852986 A CN201710852986 A CN 201710852986A CN 107450083 A CN107450083 A CN 107450083A
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- input
- module
- frequency
- output end
- processing unit
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Classifications
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
- G04R20/04—Tuning or receiving; Circuits therefor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of Beidou center type to command machine, is made up of anti-interference antenna module, radio-frequency module, LTE Baseband Processing Unit, display and control unit, power module.Compared with prior art, the present invention be integrated with 3G/4G wireless communication modules, internet, there is management capacity big, strong antijamming capability, receiving channel is more, can provide time-frequency services, it can be widely applied to need industry Surveillance center, army manoeuvre commander and the field for needing high-precision time-frequency, the unified field of such as regimen Surveillance center, environmental monitoring center, ship monitor center, massif Surveillance center, forestry Surveillance center, dangerous material Surveillance center, military exercises, the commander of disaster alarm, monitoring, scheduling and time-frequency.
Description
Technical field
Patent of the present invention belongs to satellite navigation system field of terminal equipment, is related to a kind of positioned using China's big-dipper satellite and is
Beidou center type commander's machine of system.
Background technology
With the development of Beidou satellite navigation technology, Big Dipper terminal device is also in past multi-functional, high accuracy, highly integrated grade side
To development.It has been widely used in the fields such as emergency management and rescue, operational commanding, disaster alarm.
The functions such as group commander, subordinate's monitoring will can be achieved in plain edition commander owner in the market, and it is not anti-dry
Ability is disturbed, 3G/4G communication terminal informations is provided without normal direction system platform in sector application, accurately time-frequency letter can not be provided
Breath.But joint training, electronic countermeasure, precision strike, prevent and reduce natural disasters and Industry system platform application in, these
All it is vital.
So in order to meet requirement of the user to command scheduling, anti-interference, 3G/4G communications, internet and accurate time-frequency,
And design and produce out Beidou center type commander's machine.
The content of the invention
The problem of purpose of patent of the present invention is to have prior art solves, there is provided one kind has merged common finger
Wave Beidou center type commander's machine of the command and management of machine, anti-interference, 3G/4G communication, internet and accurate time-frequency.
The technical solution used for achieving the above object is such：The Beidou center type commander provided
Machine is made up of Anneta module, radio-frequency module, LTE Baseband Processing Unit, display and control unit, power module, the input/output end of Anneta module
It is connected with the input/output terminal of antenna multiplexer, antenna multiplexer is connected with main frame radio-frequency module, the output of radio-frequency module/defeated
Enter end with the input/output terminal of LTE Baseband Processing Unit to be connected, the display output end of LTE Baseband Processing Unit and the input phase of display and control unit
Even, the output of power module is connected with the input of LTE Baseband Processing Unit and radio-frequency module.Power module is used for all modular circuits
Power supply is provided, LTE Baseband Processing Unit is the nucleus module for realizing Beidou center type commander's machine in Beidou center type commander's machine.
The realization of art solutions of the present invention also resides in：Anneta module in Beidou center type commander's machine（1）By antenna
Multiplexer（11）, power amplifier（12）And emission filter（13）Composition, Anneta module（1）Output end and antenna multiplexer
（11）Input be connected, antenna multiplexer（11）With radio-frequency module（2）It is connected；Antenna multiplexer simultaneously（11）Output end with
Power amplifier（12）Input be connected, power amplifier（12）Output end and emission filter（13）Input phase
Even, emission filter（13）Output end and Anneta module（1）Input be connected.
The realization of art solutions of the present invention also resides in：LTE Baseband Processing Unit in Beidou center type commander's machine（3）By resisting
Disturb circuit（31）、FPGA（32）、ARM（33）, B1/LI modules（34）, 3G/4G wireless communication modules（35）, serial port circuit
（36）With when frequency circuit（37）Composition, anti-jamming circuit（31）Output end and FPGA（32）It is connected, FPGA（32）With ARM（33）
It is connected, B1/LI modules（34）With FPGA（32）It is connected, 3G/4G wireless communication modules（35）With FPGA（32）It is connected, FPGA（32）
Output end and serial port circuit（36）Be connected, when frequency circuit（37）Export Time-Frequency Information.
The realization of art solutions of the present invention also resides in：Display and control unit in Beidou center type commander's machine（4）By showing
Controlled with receiving（41）Composition, LTE Baseband Processing Unit（3）Serial ports（36）Output end controls with display with receiving（41）Input
It is connected.
The realization of art solutions of the present invention also resides in：Power module in Beidou center type commander's machine（5）By chip
LTC3786（61）And LM2576（62）Deng composition, outside input 19V arrives LTC3786 respectively（61）And LM2576（62）Input
End, LTC3786（61）28V is exported to radio-frequency module（2）, LM2576（62）12V is exported to LTE Baseband Processing Unit（3）.
The workflow of Beidou center type commander machine described in patent of the present invention is divided into signal and receives and launch two parts.
First, signal receive process
Anneta module receives the navigation signal of big-dipper satellite transmitting, by antenna multiplexer by Big Dipper S frequencies and BI/L1 frequency combinings
After be sent to channel module.By after Big Dipper S frequencies and BI/L1 frequency branches, Big Dipper S frequencies are downconverted to be treated as channel module
Intermediate-freuqncy signal, is sent to LTE Baseband Processing Unit, and the signal after anti-jamming circuit samples A/D in LTE Baseband Processing Unit carries out anti-interference place
Reason, is sent to FPGA baseband processing unit, fpga chip be responsible for anti-interference, despreading, demodulation, signal acquisition and tracking, when
Frequency information processing；ARM chips are responsible for the processing of navigation message（The parsing of navigation message, positioning, Timing Processing etc.）, network interface；B1/
L1 frequencies are routed directly to the B1/L1 modules of LTE Baseband Processing Unit after branch.Result is finally sent to display and control unit.
2nd, signal emission process
The data for needing to launch are sent to channel module by the FPGA in LTE Baseband Processing Unit, and channel module passes through signal modulation, combining,
Signal is sent to the antenna multiplexer of Anneta module, after antenna multiplexer branch, transmission signal is sent to power amplifier, put
Emission filter is sent to after big, launches signal after filtered.
Patent of the present invention employs following method in the design of Beidou center type commander's machine：
1. anti-interference function
After reception signal carries out Fourier transformation, envelope detected is carried out using envelope detector, to the part progress more than thresholding
Spectral line removal procedure, removes interference components.Anti-interference schematic diagram is as shown in Figure 6：
Thresholding restrainable algorithms are the more commonly used disturbance restraining methods based on FFT, generally according to currently once or several times
FFT value determines threshold value.
Data are inevitably run into the signal processing and truncate problem, can be run into when such as designing wave filter and ideal is filtered
The truncation problem of ripple device sampling response, will run into the truncation problem to auto-correlation function in power Spectral Estimation.Frequency domain processing
Narrow Band Interference Suppression Technique is no exception.Lower treatable discrete series of actual conditions always has limit for length, is intercepted from signal
One time slice, the signal time fragment progress cycle of observation sternly open up processing, virtual endless signal are obtained, then to letter
Number carry out the Mathematical treatment such as FFT.Finally effectively eliminate narrow-band interference signal.
2. self-adaptation clock tames technology
Because crystal oscillator clock short-term stability is good, random error is smaller, and big dipper clock cumulative errors are smaller, so using the Big Dipper
Second signal tames crystal oscillator clock, eliminates crystal oscillator clock accumulated error.Clock 100M of the present invention, the input one per second of Big Dipper second signal
It is secondary, by observing satellite-signal, the difference of local clock and satellite-signal can be calculated in real time, so as to carry out school to local clock
Just, the clock correction of crystal oscillator clock is finally converted into voltage-regulation amount corresponding to crystal oscillator, directly crystal oscillator operating voltage is controlled,
So as to adjust the crystal oscillator concussion clock cycle, crystal oscillator clock is set to tend to a standard value, self-adaptation clock tames schematic diagram such as Fig. 7 institutes
Show.
By this method Big Dipper high accuracy Timing Receiver can be made to export frequency marking stabilization, impulse- free robustness；Crystal oscillator frequency can be made accurate
Exactness is from 10-9Bring up to 10-11, two orders of magnitude are improved, output second signal time service precision can reach 20ns.
After synthesis is using above-mentioned design structure and method, you can Beidou center type commander's machine is provided with common commander's machine
Outside function, anti-arrowband interference performance and accurately time-frequency function are also provided with, frequency accuracy is from 10-9Bring up to 10-11, improve
Two orders of magnitude, time service precision 20ns.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram that the Beidou center type commands machine.
Fig. 2 is Anneta module part-structure schematic diagram in Fig. 1.
Fig. 3 is the structural representation of Base-Band Processing plate part in Fig. 1.
Fig. 4 is the structural representation of display control module part in Fig. 1.
Fig. 5 is the structural representation of power module part in Fig. 1.
Fig. 6 is anti-interference schematic diagram.
Fig. 7 is that self-adaptation clock tames schematic diagram.
Each label title is respectively in accompanying drawing：1- Anneta modules, 2- channel module model STRTMX, 3- Base-Band Processings
Plate, 4- display control modules, 5- power modules, 11- antenna multiplexers, 12- power amplifiers, 13- emission filters, 31- are anti-interference
Circuit, 32-FPGA, 33-ARM, 34-B1/L1 modules, 35-3G/4G wireless communication modules, 36- serial port circuits, 37- time-frequencies electricity
Road, 41- is shown to be controlled with receiving, 51-LTC3786 chips, 52-LM2576 chips.
Embodiment
Patent content of the present invention is described further below with reference to drawings and examples, but the reality of patent of the present invention
Make structure and be not limited in following embodiments.
Referring to Fig. 1, the Beidou center type described in patent of the present invention commands machine by Anneta module（1）, radio-frequency module model
STRTMX（2）, LTE Baseband Processing Unit（3）, display and control unit（4）, power module（5）Composition.Anneta module（1）Input/output end
With main frame radio-frequency module（2）It is connected, radio-frequency module（2）Input/output end and LTE Baseband Processing Unit（3）Input/output terminal phase
Even, LTE Baseband Processing Unit（3）Display output end and display and control unit（5）Input be connected, power module（6）Output and base band
Process plate（3）And radio-frequency module（2）Input be connected.
In the example structure that Fig. 2~Fig. 4 is provided, Anneta module（1）By antenna multiplexer model STM-ZJ-LMA-
BD06（11）, power amplifier model STM-PA-BD1-11B（12）With emission filter model（13）Composition, antenna mould
Block（1）Output end and antenna multiplexer model STM-ZJ-LMA-BD06（11）Input be connected, antenna multiplexer model
For STM-ZJ-LMA-BD06（11）With radio-frequency module model STRTMX（2）It is connected；Antenna multiplexer model STM- simultaneously
ZJ-LMA-BD06（11）Output end and power amplifier model STM-PA-BD1-11B（12）Input be connected, power
Amplifier Model is STM-PA-BD1-11B（12）Output end and emission filter（13）Input be connected, emission filter
（13）Output end and Anneta module（1）Input be connected；LTE Baseband Processing Unit（3）By anti-jamming circuit（31）, FPGA models
For XC3S4000-4FG676I（32）, ARM models AT91FR40162（33）, B1/LI module models ATGM332D（34）、
3G/4G wireless communication module models SIM900A（35）, serial ports（36）, when frequency circuit（37）Composition, anti-jamming circuit（31）'s
Output end and FPGA models XC3S4000-4FG676I（32）It is connected, FPGA models XC3S4000-4FG676I（32）With
ARM models AT91FR40162（33）It is connected, B1/LI module models ATGM332D（34）With FPGA models XC3S4000-
4FG676I（32）It is connected, 3G/4G wireless communication module models SIM900A（35）With FPGA models XC3S4000-
4FG676I（32）It is connected, FPGA models XC3S4000-4FG676I（32）Output end and serial port circuit（36）It is connected, time-frequency
Circuit（37）Export Time-Frequency Information；Display and control unit（4）Controlled by display with receiving（41）Composition, LTE Baseband Processing Unit（3）Serial ports
（36）Output end controls with display with receiving（41）Input be connected.
In the example structure that Fig. 5 is provided, power module（5）By chip LTC3786（51）With chip LM2576（52）Group
Into, outside input 19V to being respectively connected to LTC3786（51）And LM2576（52）Input, LTC3786（51）Export 28V to
Radio-frequency module（2）, LM2076（52）12V is exported to LTE Baseband Processing Unit（3）.
Claims (5)
1. a kind of Beidou center type commands machine, it is characterised in that by Anneta module（1）, radio-frequency module（2）, LTE Baseband Processing Unit（3）、
Display and control unit（4）, power module（5）Composition, Anneta module（1）Input/output end and main frame radio-frequency module（2）It is connected, penetrates
Frequency module（2）Input/output end and LTE Baseband Processing Unit（3）Input/output terminal be connected, LTE Baseband Processing Unit（3）Display it is defeated
Go out end and display and control unit（4）Input be connected, power module（5）Output and LTE Baseband Processing Unit（3）And radio-frequency module（2）'s
Input is connected.
2. Beidou center type according to claim 1 commands machine, it is characterised in that Anneta module（1）By antenna multiplexer
（11）, power amplifier（12）And emission filter（13）Composition, Anneta module（1）Output end and antenna multiplexer（11）'s
Input is connected, antenna multiplexer（11）With radio-frequency module（2）It is connected；Antenna multiplexer simultaneously（11）Output end put with power
Big device（12）Input be connected, power amplifier（12）Output end and emission filter（13）Input be connected, launch
Wave filter（13）Output end and Anneta module（1）Input be connected.
3. Beidou center type according to claim 1 commands machine, it is characterised in that LTE Baseband Processing Unit（3）By anti-jamming circuit
（31）、FPGA（32）、ARM（33）, B1/LI modules（34）, 3G/4G wireless communication modules（35）, serial port circuit（36）And time-frequency
Circuit（37）Composition, anti-jamming circuit（31）Output end and FPGA（32）It is connected, FPGA（32）With ARM（33）It is connected, B1/LI
Module（34）With FPGA（32）It is connected, 3G/4G wireless communication modules（35）With FPGA（32）It is connected, FPGA（32）Output end with
Serial port circuit（36）Be connected, when frequency circuit（37）Export Time-Frequency Information.
4. Beidou center type commander's machine according to claim 1, it is characterised in that display and control unit（4）By display and receive
Control（41）Composition, LTE Baseband Processing Unit（3）Serial ports（36）Output end controls with display with receiving（41）Input be connected.
5. Beidou center type commander's machine according to claim 1, it is characterised in that power module（5）By chip LTC3786
（61）And LM2576（62）Deng composition, outside input 19V arrives LTC3786 respectively（61）And LM2576（62）Input,
LTC3786（61）28V is exported to radio-frequency module（2）, LM2576（62）12V is exported to LTE Baseband Processing Unit（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852986.9A CN107450083A (en) | 2017-09-20 | 2017-09-20 | Beidou center type commands machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852986.9A CN107450083A (en) | 2017-09-20 | 2017-09-20 | Beidou center type commands machine |
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| CN107450083A true CN107450083A (en) | 2017-12-08 |
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ID=60497891
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| CN201710852986.9A Pending CN107450083A (en) | 2017-09-20 | 2017-09-20 | Beidou center type commands machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468563A (en) * | 2020-11-18 | 2021-03-09 | 西安航光卫星测控技术有限公司 | Method for synchronizing and forwarding data of super-long-distance Beidou group type cluster and public network |
Citations (5)
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| WO2014089988A1 (en) * | 2012-12-14 | 2014-06-19 | 北京东方联星科技有限公司 | High-sensitivity beidou auxiliary timing device, timing receiver and timing method |
| CN204832528U (en) * | 2015-08-20 | 2015-12-02 | 西安航光卫星测控技术有限公司 | Big dipper common type commands machine |
| CN105137754A (en) * | 2015-09-11 | 2015-12-09 | 西安航光卫星测控技术有限公司 | Beidou timing type commanding machine |
| CN205157789U (en) * | 2015-11-23 | 2016-04-13 | 江苏无线电厂有限公司 | Big dipper commander machine |
| CN107144862A (en) * | 2017-07-10 | 2017-09-08 | 西安康帕斯电子科技有限公司 | Big Dipper data collecting instrument |
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2017
- 2017-09-20 CN CN201710852986.9A patent/CN107450083A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089988A1 (en) * | 2012-12-14 | 2014-06-19 | 北京东方联星科技有限公司 | High-sensitivity beidou auxiliary timing device, timing receiver and timing method |
| CN204832528U (en) * | 2015-08-20 | 2015-12-02 | 西安航光卫星测控技术有限公司 | Big dipper common type commands machine |
| CN105137754A (en) * | 2015-09-11 | 2015-12-09 | 西安航光卫星测控技术有限公司 | Beidou timing type commanding machine |
| CN205157789U (en) * | 2015-11-23 | 2016-04-13 | 江苏无线电厂有限公司 | Big dipper commander machine |
| CN107144862A (en) * | 2017-07-10 | 2017-09-08 | 西安康帕斯电子科技有限公司 | Big Dipper data collecting instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468563A (en) * | 2020-11-18 | 2021-03-09 | 西安航光卫星测控技术有限公司 | Method for synchronizing and forwarding data of super-long-distance Beidou group type cluster and public network |
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Application publication date: 20171208 |