CN204028365U - A kind of based on the high dynamic three mould satellite reception machines of the Big Dipper - Google Patents
A kind of based on the high dynamic three mould satellite reception machines of the Big Dipper Download PDFInfo
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- CN204028365U CN204028365U CN201420492387.2U CN201420492387U CN204028365U CN 204028365 U CN204028365 U CN 204028365U CN 201420492387 U CN201420492387 U CN 201420492387U CN 204028365 U CN204028365 U CN 204028365U
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- gps
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- glonass
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Abstract
The utility model discloses the dynamic three mould satellite reception machines of a kind of height based on China's triones navigation system, comprise radio-frequency channel, antenna, low noise amplifier, baseband processing module, power supply and complete machine structure, described antenna is BD, GPS and GLONASS tri-frequency receiving antennas: described low noise amplifier is placed in antenna inside, comprise BD and GPS/GLONASS LNA, antenna reception is amplified to satellite-signal; Described radio-frequency channel comprises BD and the compatible receiving cable of GPS/GLONASS; Described baseband processing module comprises baseband signal conversion, information processing and application processing module three parts.The utility model has solved the problem solving at the needs aspect dynamic property and positioning precision two based on the high dynamic three mould satellite receiver of the Big Dipper well, realizes BD single mode location, and supports BD, GPS and GLONASS to combine three mould mixed modes.By the compatibility of the multimodal satellite navigation system based on the Big Dipper, can greatly improve the reliability of satellite navigation receiver, therefore developing BD/GPS/GLONASS tri-mould receivers has important social effect and good market outlook.
Description
Technical field
The utility model relates to a kind of based on the high dynamic three mould satellite receiver of the Big Dipper, and the user's who faces is mainly that aircraft, vehicle-mounted and boat-carrying etc. have higher dynamic load.
Background technology
Traditional satellite navigation receiver is the signal demodulation process based on single mode GPS mainly, and by antenna, pre-low-noise amplifier, radio frequency front end chip and baseband processing chip form, the various piece of receiver is all used special IC (ASIC) to process signal, fast operation, after design typification, be difficult to change, and gps system Shi You U.S. Department of Defense controls, lack clear and definite, permanent policy, cause other countries suspecting aspect exploitation and use GPS, lack the enough sense of security and trust, especially all the more so for the application of basic field that is related to national people's livelihood safety.Along with the future development of satellite navigation receiver to three mould compatibilities, thisly take hardware the system development time is long, development cost rise, be difficult for the problems such as upgrading as basic traditional solution also will face.Therefore, we have adopted the solution based on software by the three mould satellite navigation receivers based on China's triones navigation system of design, receiver chip can be controlled the Base-Band Processing process of signal in software programming, mode of operation and reception frequency range based on the high dynamic three mould satellite receiver integration modules of the Big Dipper are completely able to programme, adapt to the working method of multiband and three moulds by changing the program of receiving chip.This has not only reduced development cost, has improved the availability reliability of product; Also greatly shortened the Time To Market of new product simultaneously.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art and navigation performance, provide a kind of based on the high dynamic three mould satellite reception machines of the Big Dipper, the mode by three die combination solves in the past depend on that GPS produces lack integrity in navigator, lack availability and the continuity problem of service.Can not only fill up the blank problem of covering that triangular web exists, and adopt the triones navigation system of China's independent research to settle accounts and can make the navigation and positioning accuracy of system significantly improve in conjunction with three die combination of GPS/GLONASS.
The technical solution of the utility model is: adopt based on the high dynamic three mould satellite reception machines of the Big Dipper, it is characterized in that comprising three mould antennas, triple channel LNA, radio-frequency channel, baseband processing module, power supply and the complete machine structure of BD and GPS/GLONASS.
Described antenna is that BD and GPS, GLONASS receive three-frequency antenna, completes the receiving function of BD and GPS, GLONASS satellite-signal;
Described LNA is combined in antenna, comprises BD and GPS/GLONASS triple channel LNA, by antenna reception to three mould satellite-signals carry out low noise amplification;
Described radio-frequency channel comprises BD compatible with GPS/GLONASS receiving cable, mainly completes the down coversion of three mould satellite-signals, and clock output is provided;
Described baseband processing module comprises signal conversion, information processing and application processing module three parts, baseband signal processing module completes despreading, demodulation, tracking, bit synchronization and the frame synchronization etc. of BD and GPS, GLONASS signal, final demodulating data and ranging data are sent into message processing module, calculate positional information, positional information is exported by application processing module.
Receiving cable comprises reception and two parts of local oscillator, and receiving unit comprises down coversion, amplification, filtering; Local oscillator partly comprises crystal oscillator and frequency synthesis.
Baseband signal processing module and message processing module are mainly comprised of A/D, FPGA, DSP programmable logic device (PLD).
The utility model can be followed the tracks of, process and measure the navigation signal of 12 BD nautical stars, 12 GPS navigation stars and 12 GLONASS nautical stars simultaneously.
The problem that needs that the utility model has solved high Dynamic GPS Receiver dynamic property and tracking accuracy two aspects preferably, realizes GPS, GLONASS, BD integrated positioning, supports single mode and three mould mixed modes.This receiver is applicable to all kinds of navigation products, under height is dynamic, resolves fast accurately position, velocity information, has good society and economic benefit.
Of the present utility model being successfully completed for strengthening China in the research and development strength in Satellite Navigation Technique field and promoting the fast development of domestic navigation industry to have landmark significance.
Accompanying drawing explanation
Figure l is based on the high dynamic three mould satellite receiver schematic diagram of device of the Big Dipper.
Fig. 2 is base-band information processing module schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, content of the present utility model is described further:
Shown in Fig. 1: antenna is that BD and GPS, GLONASS receive three-frequency antenna, completes the receiving function of BD and GPS, GLONASS satellite-signal.When designing antenna, will on space and position, take into full account, guarantee the circularity of three-frequency antenna wave beam and mutual isolation, cable is tried one's best short and is suitably adopted low loss cable, and the performance quality of antenna directly has influence on complete machine index.
LNA comprises BD and GPS/GLONASS LNA, by antenna reception to satellite-signal carry out low noise amplification;
Radio-frequency channel comprises BD and the compatible receiving cable of GPS/GLONASS, mainly completes the down coversion of satellite-signal, and clock output is provided.
Base-band information processing module comprises baseband signal conversion module, message processing module and application processing module three parts.Baseband signal processing module completes despreading, demodulation, tracking, bit synchronization and the frame synchronization etc. of BD and GPS, GLONASS signal, final demodulating data and ranging data are sent into message processing module, calculate positional information, positional information is exported by application processing module.
Power supply unit, for complete machine provides power management, has overcurrent, overvoltage, under-voltage and accidental reverse polarity connection defencive function.
Complete machine structure completes said modules is fixed to installation, and considers good environmental suitability and Electro Magnetic Compatibility.
Shown in Fig. 2: integrated information processing module provides hardware platform for running software, comprise that Base-Band Processing, information processing, application process three parts, the workflow of integrated information disposable plates is: baseband signal is quantified as digital signal by A/D programmable logic device (PLD) and sends into FPGA programmable logic device (PLD), FPGA completes the catching of GPS/GLONASS/BD signal, tracking, data demodulates, observation data generation etc. under the control of DSP programmable logic device (PLD), raw data is sent into information process unit and process and export applying unit to by UART and export; Meanwhile, by applying unit man-machine interaction, real-time response user input instruction, gives information process unit by UART, completes data group bag, gives signal processing unit and completes data encoding, generates baseband signal.
In the high dynamic three mould satellite receiver design processes based on the Big Dipper, in order to realize the miniaturization target of satellite navigation receiver, several aspects such as the radio-frequency channel of receiver, digital sample, base band signal process are all redesigned.Adopt two passages (BD mono-receipts passage and GPS/GLONASS compatible channels), the implementation of three base band signal process passages.All nautical star signals in antenna visual field amplify through pre-low-noise amplifier, signal after amplification becomes analog if signal after down conversion module, analog if signal is delivered to baseband signal processing module, signal delivers to after A/D sampling, despreading, demodulation process that message processing module positions, navigation calculation, finally by application processing module, is exported and is measured and locator data.
Claims (2)
1. based on the high dynamic three mould satellite reception machines of the Big Dipper, it is characterized in that comprising radio-frequency channel, antenna, low noise amplifier, baseband processing module, power supply and complete machine structure,
Described antenna is BD, GPS and GLONASS tri-frequency receiving antennas, completes reception and the signal processing function of BD, GPS and GLONASS satellite-signal;
Described low noise amplifier is integrated in antenna inside, comprises BD and GPS/GLONASS LNA, by antenna reception to satellite-signal carry out low noise amplification;
Described radio-frequency channel comprises BD receiving cable and GPS/GLONASS compatible channels, mainly completes being downconverted into as intermediate frequency of satellite-signal, and clock output is provided;
Described baseband processing module comprises baseband signal conversion, information processing and application processing module three parts; Final demodulating data and ranging data are sent into despreading, demodulation, tracking, bit synchronization and the frame synchronization of information processing module, message processing module and application processing module three parts and BD signal, processing module, calculate positional information, positional information is exported by application processing module.
2. as claimed in claim 1 a kind of based on the high dynamic three mould satellite reception machines of the Big Dipper, it is characterized in that BD, GPS and GLONASS receiving cable comprise reception and two parts of local oscillator, receiving unit comprises down coversion, amplification, filtering; Local oscillator partly comprises crystal oscillator and frequency synthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492387.2U CN204028365U (en) | 2014-08-29 | 2014-08-29 | A kind of based on the high dynamic three mould satellite reception machines of the Big Dipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492387.2U CN204028365U (en) | 2014-08-29 | 2014-08-29 | A kind of based on the high dynamic three mould satellite reception machines of the Big Dipper |
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| Publication Number | Publication Date |
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| CN204028365U true CN204028365U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420492387.2U Expired - Fee Related CN204028365U (en) | 2014-08-29 | 2014-08-29 | A kind of based on the high dynamic three mould satellite reception machines of the Big Dipper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793223A (en) * | 2015-05-04 | 2015-07-22 | 广东远峰电子科技有限公司 | Beidou navigation and positioning circuit |
| CN105319564A (en) * | 2014-12-26 | 2016-02-10 | 上海华测导航技术股份有限公司 | Processing method of dividing satellite signals into eight frequency points |
| CN112102522A (en) * | 2020-11-03 | 2020-12-18 | 江苏广宇科技产业发展有限公司 | Black box device for net appointment vehicle |
-
2014
- 2014-08-29 CN CN201420492387.2U patent/CN204028365U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319564A (en) * | 2014-12-26 | 2016-02-10 | 上海华测导航技术股份有限公司 | Processing method of dividing satellite signals into eight frequency points |
| CN104793223A (en) * | 2015-05-04 | 2015-07-22 | 广东远峰电子科技有限公司 | Beidou navigation and positioning circuit |
| CN112102522A (en) * | 2020-11-03 | 2020-12-18 | 江苏广宇科技产业发展有限公司 | Black box device for net appointment vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20200829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |