CN203720353U - Small anti-interference BD-GNSS satellite navigation system - Google Patents
Small anti-interference BD-GNSS satellite navigation system Download PDFInfo
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- CN203720353U CN203720353U CN201320849829.XU CN201320849829U CN203720353U CN 203720353 U CN203720353 U CN 203720353U CN 201320849829 U CN201320849829 U CN 201320849829U CN 203720353 U CN203720353 U CN 203720353U
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Abstract
The utility model relates to a small anti-interference BD-GNSS satellite navigation system. The system is composed of a satellite navigation receiver and an anti-interference antenna which are connected. The circuit is connected in a mode that a GPS/GLONASS array is connected with a synthesizer through a GPS/GLONASS low noise amplifier; the output of four BD2 antenna arrays enters BD2 channel modules through four paths of BD2 low noise amplifiers and then enters an anti-interference processor, and the output of the anti-interference processor enters a BD2 up-conversion circuit and then enters a synthesizer module; the synthesizer module is connected with a data processing module through a radio frequency module and a base-band module; a frequency synthesis module is connected with the radio frequency module and the base-band module; a precise range finding module is connected with the base-band module; and a power supply module supplies power to the satellite navigation system. The effects are that a prototype sample development stage of the satellite navigation system is over by now and technical and tactical indexes meet requirements of users; and according to tests, the satellite navigation system can fully satisfy refitting requirements of a certain model of warplane and can directly replace an original plane assembly.
Description
Technical field
The utility model relates to a kind of Technique of Satellite Navigation and Positioning, particularly a kind of small-sized anti-interference BD-GNSS satellite navigation system.
Background technology
In recent years, Satellite Navigation Technique is widely applied in multiple fields such as military affairs, scientific research, agriculturals, the importance of satellite navigation application and the development of correlation technique have also fully caused the common concern of national governments, existing multiple countries have or are building independently GPS (Global Position System), comprise the GPS of the U.S., Muscovite GLONASS, the Galileo of European Union, the dipper system of China etc.
Satellite navigation system is being brought into play irreplaceable great function, but because the distance of satellite and receiving terminal is up to kilometers up to ten thousand, the signal that navigation neceiver is received is very faint, add the unaccelerated aging of wireless transmitting device, electromagnetic environment worsens increasingly, space is disturbed and is ascendant trend year by year, adds the appearance of special navigation EVAC (Evacuation Network Computer Model), and high density, strong signal electromagnet disturb the content of paying close attention to that has become the design of Big Dipper receiving equipment.
Big-dipper satellite anti-interference antenna, by self anti-interference algorithm, can be resisted the electromagnetic interference (EMI) of high strength, multi-angle.(briquettability of 3 directions is disturbed, jamming-to-signal ratio 60dB, 1 interference source 70dB) realizes high-precision reliable location under complex electromagnetic environment.Improve the reliability and stability of receiving terminal, particularly, under ECM environment, greatly improve the fight capability of Big Dipper navigation receiving terminal carrier.
Summary of the invention
In view of situation and the needs of prior art, the utility model provides a kind of small-sized anti-interference BD-GNSS satellite navigation system, its objective is for China active service-XX type aircraft is carried out to technological improvement, substitute its original GPS/GLONASS navigational system, make opportunity of combat possess the Big Dipper, GPS GLONASS tri-system homing capabilities, and can resist the electromagnetic interference (EMI) of high strength, multi-angle.Adopt Miniaturization Design simultaneously, meet the requirement of carrying out original position replacement on the original erecting frame of this type opportunity of combat.
The utility model for achieving the above object, the technical scheme adopting is: a kind of small-sized anti-interference BD-GNSS satellite navigation system, it is characterized in that: this system is connected and composed by satellite navigation receiver and anti-interference antenna, described anti-interference antenna comprises GPS/GLONASS a period of time, GPS/GLONASS low noise amplifier, BD2 antenna element, BD2 low noise amplifier, BD2 channel module, anti-interference process device, BD2 up-converter circuit, Senthesizer module, described satellite navigation receiver circuit comprises radio-frequency module, baseband module, frequency synthesis module, precise distance measurement module, data processing module, physical circuit is connected to: GPS/GLONASS a period of time is connected with compositor by GPS/GLONASS low noise amplifier, four BD2 antenna arrays enter BD2 channel module by four road BD2 low noise amplifiers, then after entering the output of anti-interference process device, enter BD2 up-converter circuit, then be connected with Senthesizer module, compositor is connected with data processing module by radio-frequency module and baseband module, frequency synthesis module respectively with radio-frequency module, baseband module connects, and precise distance measurement module is connected with baseband module, and power module provides power supply to satellite navigation system.
The beneficial effects of the utility model are: this satellite navigation system has completed the first sample development stage at present, and technique and tactics index reaches military's requirement, after tested, can meet completely to certain-the repacking demand of XX type opportunity of combat, can directly replace former aircraft component.
Brief description of the drawings
Fig. 1 is that circuit system of the present utility model connects block diagram.
Embodiment
As shown in Figure 1, a kind of small-sized anti-interference BD-GNSS satellite navigation system, is characterized in that: comprise the anti-interference antenna and the satellite navigation receiver that are connected, described anti-interference antenna comprises GPS/GLONASS a period of time, GPS/GLONASS low noise amplifier, BD2 a period of time, BD2 low noise amplifier, BD2 channel module, anti-interference process device, BD2 up-converter circuit, Senthesizer module, described satellite navigation receiver comprises radio-frequency module, baseband module, frequency synthesis module, precise distance measurement module, data processing module, physical circuit is connected to: GPS/GLONASS a period of time is connected with compositor by GPS/GLONASS low noise amplifier, four BD2 antenna arrays enter BD2 channel module by four road BD2 low noise amplifiers, then after entering the output of anti-interference process device, enter BD2 up-converter circuit, then be connected with Senthesizer module, compositor is connected with data processing module by radio-frequency module and baseband module, frequency synthesis module respectively with radio-frequency module, baseband module connects, and precise distance measurement module is connected with baseband module, and power module provides power supply to satellite navigation system.
Principle of work: BD2 antenna element receiving satellite signal, through being amplified into BD2 channel module through low noise amplifier module, enter afterwards Big Dipper anti-interference process module, go the GPS/GLONASS signal carrying out after up-conversion and amplification after disturbing to close road, and carry out power division and amplify rear radio frequency output, be connected with satellite navigation receiver plate by former stube cable in machine.
Satellite navigation receiver plate mainly comprises radio-frequency module, the three parts such as data processing module and external interface module.By antagonism jammer satellite antenna reception to signal carry out down coversion, the laggard row digital sample of filter and amplification, carries out navigation calculation through FPGA, by ARM integral data information, exports accurate satellite navigation information to satellite navigation computer.With certain-XX aircraft on multi-mode satellite receiver Interface status in original satellite navigation computer consistent, substitute to realize original position, navigation neceiver output locating information is used to satellite navigation computer via satellite.
For meeting the designing requirement of former opportunity of combat erecting frame, anti-interference antenna is designed to cylindrical exterior, and the space of structuring the formation very little (Ф 140mm × 6mm) will carry out rationally effectively inner structure design in limited space.
Anti-interference antenna apparent size meets:
Mounting disc part (containing antenna house) :≤Φ 140mm × 6mm;
Mounting disc bottom (not containing connector) :≤Φ 104mm × 95mm;
Airborne satellite receiver apparent size meets:
Long: 120mm;
Wide: 90mm;
Facade element height :≤9mm;
Reverse side element heights :≤4mm.
Claims (1)
1. a small-sized anti-interference BD-GNSS satellite navigation system, it is characterized in that: this system is connected and composed by satellite navigation receiver and anti-interference antenna, described anti-interference antenna comprises four BD2 a period of time, a GPS/GLONASS a period of time, four road BD2 low noise amplifiers, one road GPS/GLONASS low noise amplifier, anti-interference process module, BD2 up-converter circuit, Senthesizer module, described satellite navigation receiver circuit comprises radio-frequency module, baseband module, frequency synthesis module, precise distance measurement module, data processing module, physical circuit is connected to: GPS/GLONASS a period of time is connected with compositor by GPS/GLONASS low noise amplifier, four BD2 antenna arrays enter BD2 channel module by four road BD2 low noise amplifiers, then after entering the output of anti-interference process device, enter BD2 up-converter circuit, then be connected with Senthesizer module, compositor is connected with data processing module by radio-frequency module and baseband module, frequency synthesis module respectively with radio-frequency module, baseband module connects, precise distance measurement module is connected with baseband module, power module provides power supply to satellite navigation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849829.XU CN203720353U (en) | 2013-12-22 | 2013-12-22 | Small anti-interference BD-GNSS satellite navigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849829.XU CN203720353U (en) | 2013-12-22 | 2013-12-22 | Small anti-interference BD-GNSS satellite navigation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720353U true CN203720353U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849829.XU Expired - Lifetime CN203720353U (en) | 2013-12-22 | 2013-12-22 | Small anti-interference BD-GNSS satellite navigation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182864A (en) * | 2015-10-20 | 2015-12-23 | 天津七六四通信导航技术有限公司 | Anti-interference antenna with locking function |
| CN105182863A (en) * | 2015-10-20 | 2015-12-23 | 天津七六四通信导航技术有限公司 | Anti-interference antenna with direct connection function |
| CN106873006A (en) * | 2017-03-03 | 2017-06-20 | 中国电子科技集团公司第五十四研究所 | A kind of pseudolite receiver |
| CN109752732A (en) * | 2019-01-17 | 2019-05-14 | 上海华测导航技术股份有限公司 | A kind of circuit structure that GNSS height navigation frequency band is handled respectively |
| CN110988952A (en) * | 2019-12-25 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Unmanned aerial vehicle navigation method and system with anti-interference and high precision |
-
2013
- 2013-12-22 CN CN201320849829.XU patent/CN203720353U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182864A (en) * | 2015-10-20 | 2015-12-23 | 天津七六四通信导航技术有限公司 | Anti-interference antenna with locking function |
| CN105182863A (en) * | 2015-10-20 | 2015-12-23 | 天津七六四通信导航技术有限公司 | Anti-interference antenna with direct connection function |
| CN105182864B (en) * | 2015-10-20 | 2017-11-07 | 天津七六四通信导航技术有限公司 | A kind of anti-interference antenna with blocking function |
| CN105182863B (en) * | 2015-10-20 | 2017-11-07 | 天津七六四通信导航技术有限公司 | It is a kind of that there is the anti-interference antenna for leading directly to function |
| CN106873006A (en) * | 2017-03-03 | 2017-06-20 | 中国电子科技集团公司第五十四研究所 | A kind of pseudolite receiver |
| CN106873006B (en) * | 2017-03-03 | 2019-10-22 | 中国电子科技集团公司第五十四研究所 | A kind of pseudolite receiver |
| CN109752732A (en) * | 2019-01-17 | 2019-05-14 | 上海华测导航技术股份有限公司 | A kind of circuit structure that GNSS height navigation frequency band is handled respectively |
| CN110988952A (en) * | 2019-12-25 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Unmanned aerial vehicle navigation method and system with anti-interference and high precision |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |