CN105530043A - Airborne terminal compatible with dual-system satellite communication link work - Google Patents
Airborne terminal compatible with dual-system satellite communication link work Download PDFInfo
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- CN105530043A CN105530043A CN201510896707.XA CN201510896707A CN105530043A CN 105530043 A CN105530043 A CN 105530043A CN 201510896707 A CN201510896707 A CN 201510896707A CN 105530043 A CN105530043 A CN 105530043A
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- signal
- satellite
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- processing module
- signal processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
Abstract
The invention provides an airborne terminal compatible with dual-system satellite communication link work. The airborne terminal comprises a down-conversion channel module, an up-conversion channel module, a frequency synthesizer module and a signal processing module, wherein the down-conversion channel module converts a received inter-satellite link forward remote control signal of a Beidou second generation satellite into an intermediate frequency signal and sends the same to the signal processing module, and the signal processing module captures and demodulates the intermediate frequency signal and outputs remote control information; airborne telemeasuring data are encoded and modulated by the signal processing module and are sent to the up-conversion channel module to be converted into a radio frequency signal sent to the Beidou second generation satellite, and meanwhile, the signal processing module receives a switching instruction signal input by an airborne platform, generates a control signal of the frequency synthesizer module through built-in dynamic loading working software, controls the frequency synthesizer module to output a local oscillation signal corresponding to the frequency of an inter-satellite KSA link of a relay satellite system and switches the inter-satellite link working mode of the Beidou second generation satellite to the inter-satellite link of the relay satellite system.
Description
Technical field
The invention relates in telemetry communication field, is a kind of aircraft mounted terminal that compatible repeater satellite/Beidou II satellite binary satellite link work provides.
Background technology
Along with satellite resource constantly increases, utilize satellite communication to realize trans-regional over the horizon data transmission technology and more and more come into one's own, become the critical path that various information in real time, is effectively transmitted.For various middle low-orbit aircraft, affect by earth curvature, platform information is difficult to the transmission of direct vacant lot.Between China's relay satellite system star, KSA link and Beidou II satellite system inter-satellite link have employed the diverse signal of communication of two covers, comprise signalman's working frequency, signal waveform and signalling technique system etc.Between relay satellite system star, KSA link signal and Beidou II Inter-satellite Links signal are operated in different signal frequencies, and the technical system of working signal also there are differences.Signalman's working frequency aspect, between relay satellite system star KSA link front back signal behavior Ka frequency range in different operating frequency, and the working frequency points of Beidou II satellite system inter-satellite link is different from KSA link between relay satellite system star, and front back signal is operated in identical operating frequency; Signal waveform aspect, between relay satellite system star, the front back signal of KSA link is continuous wave signal form, and before Beidou II satellite system inter-satellite link, back signal is pulse signal form, receiving and transmitting signal time-sharing work; Signalling technique system aspect, the information rate of the code modulation mode of two cover system working signals, pseudo-bit rate, support and data frame format etc. are all different.Aircraft satellite communication system carries subsystem relevant device, satellite ground subsystem relevant device and satellite relay platform composition primarily of aircraft.The communication link of ground one satellite one aircraft is called forward link, mainly completes the command & control to aircraft flight; The communication link on aircraft one satellite one ground is called return link, mainly completes aircraft telemetry data transmission.Traditional aircraft mounted terminal design ap-plication pattern is: for repeater satellite/two kinds, Beidou II satellite satellite system system, design corresponding aircraft mounted terminal respectively, configuration is simultaneously applied on aircraft, timesharing communicates with two kinds of satellite systems, but, along with aircraft is to terminal volume, improving constantly of weight and power consumption requirements, adopt the complete autonomous device mentality of designing of two covers, installation and the user demand of aircraft can not be met, require that the function to two locking terminals realize carries out comprehensive Design, a locking terminal timesharing is namely utilized to complete the communication function with two kinds of satellite systems, therefore, how to design a locking terminal and carry out the work of compatible binary satellite link, need the urgent technical problem solved.
Summary of the invention
The object of the invention is the weak point existed for prior art aircraft mounted terminal, provide a kind of actualizing technology difficulty little, can the aircraft mounted terminal of compatible binary satellite communication link work.The complete autonomous device of two covers is needed, the problem that volume, weight and power consumption are large to solve aircraft communication terminal
The present invention solves the scheme that prior art problem adopts: the aircraft mounted terminal of a kind of compatible binary satellite communication link work, comprise: down-conversion channel module, up-convert channel module, Frequency Synthesizer module and signal processing module, it is characterized in that: the Beidou II Inter-satellite Links forward direction remote signal received is converted to intermediate-freuqncy signal and sends into signal processing module by down-conversion channel module, signal processing module realizes catching of intermediate-freuqncy signal and demodulation, exports remote information, aircraft carries telemetry to carry out encoding and modulate to telemetry by signal processing module, and serve frequency conversion channel module and be converted to radiofrequency signal to Beidou II satellite launch, simultaneously, signal processing module receives the switching command signal from the input of aircraft carrying platform, the control signal to Frequency Synthesizer module is produced by built-in baseband processing unit dynamic load baseband processing unit working software, the local oscillation signal that between relay satellite system star, KSA link frequency is corresponding is exported by controlling Frequency Synthesizer module, Beidou II Inter-satellite Links working method is switched to relay satellite system inter-satellite link.
The present invention has following beneficial effect compared to prior art:
Technical difficulty is little.The present invention is directed to KSA link and Beidou II satellite system inter-satellite link two between relay satellite system star and overlap diverse communication link, special in existing aircraft mounted terminal, the aircraft mounted terminal of the compatible binary satellite communication link work proposed, have employed and be different from traditional aircraft mounted terminal design, utilize signal processing module to control Frequency Synthesizer module and export different local oscillation frequency signal, compatible repeater satellite/two kinds, Beidou II satellite satellite system system inter-satellite link different operating frequency requirement, solve the technical problem that a locking terminal compatibility adapts to repeater satellite/Beidou II Inter-satellite Links two kinds different K a band operation signal.
Can the aircraft mounted terminal of compatible binary satellite communication link work.The present invention utilizes the Dynamic loading technique for software in signal processing module, solves the technical problem utilizing a set of signal processing module compatible processing two kinds of different technologies system signals; Solve aircraft communication terminal and need the complete autonomous device of two covers, the problem that volume, weight and power consumption are large.Compare with two locking terminals of Beidou II satellite system with the relay satellite system that is operated in of routine, the aircraft mounted terminal of compatible binary satellite communication link work has the advantages such as volume is little, lightweight and low in energy consumption, utilize a locking terminal timesharing to complete the communication with two kinds of satellite systems, there is good realizability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this patent is further illustrated.
Fig. 1 is the theory diagram of the aircraft mounted terminal of the present invention's compatible binary satellite communication link work.
Fig. 2 is the theory diagram of signal processing module in Fig. 1.
Fig. 3 is the theory diagram of Frequency Synthesizer module in Fig. 1.
Embodiment
Consult Fig. 1.In the embodiment that following examples describe, the aircraft mounted terminal of compatible binary satellite communication link work, comprise: down-conversion channel module, up-convert channel module, Frequency Synthesizer module and signal processing module, wherein, the Beidou II Inter-satellite Links forward direction remote signal received is converted to intermediate-freuqncy signal and send signal processing module by down-conversion channel module, signal processing module realizes catching of intermediate-freuqncy signal and demodulation, exports remote information; Aircraft carries telemetry and send signal processing module in real time, and signal processing module realizes coding and the modulation of telemetry, serves frequency conversion channel module and is converted to radiofrequency signal, to Beidou II satellite launch; Signal processing module receives switching command signal, the control signal to Frequency Synthesizer module is produced by built-in baseband processing unit dynamic load baseband processing unit working software at signal processing module, control Frequency Synthesizer module and export the local oscillation signal that between relay satellite system star, KSA link frequency is corresponding, realize working method and be switched to relay satellite system inter-satellite link from Beidou II Inter-satellite Links.
Consult Fig. 2.Signal processing module comprises instruction interpretation unit and the baseband processing unit of connected storage, wherein, the switching command signal of instruction interpretation unit real-time reception aircraft carrying platform input, instruction interpretation units synchronization switching command signal, interpretation switching command, control storage, by memory dynamic load baseband processing unit working software.
Consult Fig. 3.The signal generation unit that Frequency Synthesizer module comprises lock unit, decoding unit and two are parallel to decoding unit, wherein, lock unit synchronously processes the control signal that signal processing module is sent into, exporting control command data send decoding unit to realize the decoding of control command, the two-way number of delivering letters that decoding value is walked abreast generation unit 1 and signal generation unit 2, signal generation unit 1 produces and exports local oscillator 1, signal generation unit 2 produces and exports local oscillator 2, and local oscillator 1 and local oscillator 2 give down-conversion channel module and up-convert channel module respectively.
Claims (5)
1. the aircraft mounted terminal of compatible binary satellite communication link work, comprise: down-conversion channel module, up-convert channel module, Frequency Synthesizer module and signal processing module, it is characterized in that: the Beidou II Inter-satellite Links forward direction remote signal received is converted to intermediate-freuqncy signal and sends into signal processing module by down-conversion channel module, signal processing module realizes catching of intermediate-freuqncy signal and demodulation, exports remote information, aircraft carries telemetry to carry out encoding and modulate to telemetry by signal processing module, and serve frequency conversion channel module and be converted to radiofrequency signal to Beidou II satellite launch, simultaneously, signal processing module receives the switching command signal from the input of aircraft carrying platform, the control signal to Frequency Synthesizer module is produced by built-in baseband processing unit dynamic load baseband processing unit working software, the local oscillation signal that between relay satellite system star, KSA link frequency is corresponding is exported by controlling Frequency Synthesizer module, Beidou II Inter-satellite Links working method is switched to relay satellite system inter-satellite link.
2. by the aircraft mounted terminal of compatible binary satellite communication link according to claim 1 work, it is characterized in that, signal processing module comprises instruction interpretation unit and the baseband processing unit of connected storage, wherein, the switching command signal of instruction interpretation unit real-time reception aircraft carrying platform input, instruction interpretation units synchronization switching command signal, interpretation switching command, control storage, by memory dynamic load baseband processing unit working software.
3. by the aircraft mounted terminal of compatible binary satellite communication link according to claim 1 work, it is characterized in that, the signal generation unit that Frequency Synthesizer module comprises lock unit, decoding unit and two are parallel to decoding unit.
4. by the aircraft mounted terminal of compatible binary satellite communication link according to claim 3 work, it is characterized in that, lock unit synchronously processes the control signal that signal processing module is sent into, exporting control command data send decoding unit to realize the decoding of control command, the two-way number of delivering letters that decoding value is walked abreast generation unit 1 and signal generation unit 2, signal generation unit 1 produces and exports local oscillator 1, and signal generation unit 2 produces and exports local oscillator 2.
5., by the aircraft mounted terminal of compatible binary satellite communication link according to claim 4 work, it is characterized in that, local oscillator 1 and local oscillator 2 give down-conversion channel module and up-convert channel module respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510896707.XA CN105530043A (en) | 2015-12-07 | 2015-12-07 | Airborne terminal compatible with dual-system satellite communication link work |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510896707.XA CN105530043A (en) | 2015-12-07 | 2015-12-07 | Airborne terminal compatible with dual-system satellite communication link work |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533531A (en) * | 2016-10-14 | 2017-03-22 | 上海微小卫星工程中心 | Manmade satellite communication device |
| CN106571864A (en) * | 2016-10-28 | 2017-04-19 | 北京航天长征飞行器研究所 | General multi-mode information processor for aircrafts based on software radio |
| CN107707295A (en) * | 2017-09-28 | 2018-02-16 | 中电科航空电子有限公司 | A kind of Airborne Satellite Communication System of bimodulus two-band |
| CN107959526A (en) * | 2017-12-08 | 2018-04-24 | 北京卫星信息工程研究所 | Day ground integrated test control system applied to terrestrial space |
| CN108631860A (en) * | 2018-08-17 | 2018-10-09 | 北京微宇技术有限公司 | Terminal and intersatellite communication means and terminal |
| CN108736955A (en) * | 2018-04-09 | 2018-11-02 | 西安空间无线电技术研究所 | A kind of full duplex inter-satellite link system and method that transmitting-receiving frequency is changeable |
| CN109375176A (en) * | 2018-11-29 | 2019-02-22 | 四川九洲电器集团有限责任公司 | A kind of power amplifier in transmitter module |
| CN111224711A (en) * | 2020-01-15 | 2020-06-02 | 中交信捷科技有限公司 | Communication terminal system of multi-mode internet of things satellite and network management method thereof |
| CN112116798A (en) * | 2020-09-15 | 2020-12-22 | 中国人民解放军63660部队 | Two-target measurement and control cross multiplexing method under parallel tasks |
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| CN204101730U (en) * | 2014-09-16 | 2015-01-14 | 西安中星伟业通信科技有限公司 | A kind of distributed satellites navigation neceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533531A (en) * | 2016-10-14 | 2017-03-22 | 上海微小卫星工程中心 | Manmade satellite communication device |
| CN106571864A (en) * | 2016-10-28 | 2017-04-19 | 北京航天长征飞行器研究所 | General multi-mode information processor for aircrafts based on software radio |
| CN107707295A (en) * | 2017-09-28 | 2018-02-16 | 中电科航空电子有限公司 | A kind of Airborne Satellite Communication System of bimodulus two-band |
| CN107959526A (en) * | 2017-12-08 | 2018-04-24 | 北京卫星信息工程研究所 | Day ground integrated test control system applied to terrestrial space |
| CN107959526B (en) * | 2017-12-08 | 2020-10-27 | 北京卫星信息工程研究所 | Space-ground integrated measurement and control system applied to near-ground space |
| CN108736955A (en) * | 2018-04-09 | 2018-11-02 | 西安空间无线电技术研究所 | A kind of full duplex inter-satellite link system and method that transmitting-receiving frequency is changeable |
| CN108631860A (en) * | 2018-08-17 | 2018-10-09 | 北京微宇技术有限公司 | Terminal and intersatellite communication means and terminal |
| CN109375176A (en) * | 2018-11-29 | 2019-02-22 | 四川九洲电器集团有限责任公司 | A kind of power amplifier in transmitter module |
| CN109375176B (en) * | 2018-11-29 | 2023-10-27 | 四川九洲电器集团有限责任公司 | Transmitter power amplifier module |
| CN111224711A (en) * | 2020-01-15 | 2020-06-02 | 中交信捷科技有限公司 | Communication terminal system of multi-mode internet of things satellite and network management method thereof |
| CN112116798A (en) * | 2020-09-15 | 2020-12-22 | 中国人民解放军63660部队 | Two-target measurement and control cross multiplexing method under parallel tasks |
| CN112116798B (en) * | 2020-09-15 | 2022-02-08 | 中国人民解放军63660部队 | Two-target measurement and control cross multiplexing method under parallel tasks |
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