CN103117792A - Dual-band channel multiplexing small-scale measurement and control data transmission system - Google Patents
Dual-band channel multiplexing small-scale measurement and control data transmission systemDownload PDFInfo
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- CN103117792A CN103117792ACN2013100257444ACN201310025744ACN103117792ACN 103117792 ACN103117792 ACN 103117792ACN 2013100257444 ACN2013100257444 ACN 2013100257444ACN 201310025744 ACN201310025744 ACN 201310025744ACN 103117792 ACN103117792 ACN 103117792A
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Abstract
Description
Technical field
The present invention relates to electrical communication technology, the small-sized observing and controlling number of especially a kind of two-band channel multiplexing passes system.
Background technology
Aerospace system is comprised of spacecraft, space transportation system, space launching site, space instrumentation and command network, AEROSPACE APPLICATION system.It is a comprehensive system in large scale, technology-intensive.It is very important subsystem in spacecraft that the biography system is counted in observing and controlling, and interactive communication between space instrumentation and command network, is the tie that contacts between spacecraft and ground.
The functions such as observing and controlling number biography system mainly completes and tests the speed, range finding, remote control command reception, telemetry data transmission, data-signal transmission.In system, general the outfit overpaied reception and transmitting antenna, two or many answering machines, two or many number of units transmission transmitter.The function that in the biography system, the reception antenna settling signal receives is counted in general observing and controlling, the function of transmitting antenna settling signal emission, answering machine is completed and is tested the speed, range finding, remote control command receive the function that receives with telemetry, and the number transmission transmitter is completed the function of data-signal transmission.
The observing and controlling number passes the design of system and mainly considers the factors such as Frequency Band Selection, channel allocation, volume and power consumption.The frequency range of spacecraft observing and controlling number biography system works need to be mated with the ground space instrumentation and command network, and S frequency range, X frequency range etc. are generally arranged.The channel design aspect, sub-carrier modulation is adopted in general remote control and telemetered signal design, and range finding and tachometer signal design are adopted the PM modulation and the modulation systems such as data-signal design employing BPSK, QPSK or FSK.
In prior art, the observing and controlling number passes the signal employing different modulating mode that system only is operated in single frequency band and difference in functionality.
Summary of the invention
The object of the present invention is to provide the small-sized observing and controlling number of a kind of two-band channel multiplexing to pass system, can reach the signal that possesses two working frequency range, difference in functionality can channel multiplexing and system bulk little.
The present invention is that the technical scheme that its technical problem of solution adopts is:
The small-sized observing and controlling number of a kind of two-band channel multiplexing passes system, and this system comprises:
Overpay reception antenna, receive the multiple wireless signal of telecommunication from the space;
The first transmitting antenna is overpaied the described multi-path radio signal amplitude that reception antenna receives and is incident upon the space described with the frequency of the second frequency range;
Overpay the second transmitting antenna, overpay the described multi-path radio signal amplitude that reception antenna receives and be incident upon the space described with the frequency of the first frequency range;
The acknowledge communication module, the described described multiple wireless signal of telecommunication of overpaying the reception antenna reception is selected, and after modulation the output multi-channel remote signal, receive simultaneously one first remote measurement/number number of delivering a letter, and will described the first remote measurement/number number of delivering a letter export one second output signal through relevant reaching after modulating;
The first power amplifier is connected with described acknowledge communication module, is operated in the first frequency range described the second output signal is carried out power amplification;
The second selector switch is connected with described the first power amplifier, receives described the second output signal of carrying out after power amplification, and outputs it to described second transmitting antenna of overpaying;
Transmitter module receives the one second number number of delivering a letter, and is transmitted to described the first transmitting antenna after described the second number number of delivering a letter is amplified.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described acknowledge communication module comprises:
The first selector switch is connected with the described reception antenna of overpaying, and selects the two-way radio signal to export from the described multiple wireless signal of telecommunication of overpaying reception antenna;
The first receive path, be connected with described the first selector switch, road radio signal in described two-way radio signal is demodulated into the first remote signal exports, catch simultaneously a carrier signal and reference signal, with the relevant described reference signal of described carrier signal and export a coherent signal;
The first transmitter is connected with described the first receive path, take described coherent signal as launching carrier wave and modulate rear output with described the first remote measurement/number number of delivering a letter with reference to generating;
The second receive path is connected with described the first selector switch, another road radio signal in described two-way radio signal is demodulated into the second remote signal exports.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described the first power amplifier and the second power amplifier are solid-state power amplifier or travelling wave tube power amplifier.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, the be designed to heterodyne system, Direct-conversion formula, mirror image of described the first receive path and the second receive path suppress formula or digital intermediate frequency formula.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described the first selector switch, the first receive path, the second receive path and the first transmitter are the integral type structure, are perhaps two or more structure designs.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described acknowledge communication module is answering machine, communication equipment or acknowledge communication machine.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described transmitter module comprises:
The second transmitter receives the one second number number of delivering a letter, with output after described the second number number of delivering a letter modulation;
The second power amplifier is connected with described the second transmitter, is operated in the second frequency range the output signal of the second transmitter is carried out power amplification.
Pass system, the direct frequency doubling formula that is designed to, up-conversion formula, Phase-locked Multi-frequency, multiple-frequency modulation combination type or the multiple-frequency modulation split of described the first transmitter and the second transmitter according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described the second transmitter and described the second power amplifier are the integral type structure.
Pass system according to the small-sized observing and controlling number of the described two-band channel multiplexing of preferred embodiment of the present invention, described transmitter module is transmitter, number transmission transmitter or communication equipment.
Compared with prior art, there is following technique effect in the present invention:
The small-sized observing and controlling number of a kind of two-band channel multiplexing of the present invention passes system, owing to taking above-mentioned technical scheme, can realize that the observing and controlling number passes system's two-band work, and the multiplexing channel of remote measurement and data-signal and volume are little.Overpay reception antenna and be operated in the first frequency range, receive the signal in the space, the first selector switch selects two-way to export to respectively the first receive path and the second receive path from the multipath reception signal, and the first receive path and the second receive path can be worked simultaneously also can time-sharing work.The first receive path is exported the first remote signal demodulation, and gives the first transmitter generation carrier signal with the carrier signal of catching as the coherent reference signal, and the first transmitter is with the first remote measurement or the number number of delivering a letter modulation output.The second receive path is exported the second remote signal demodulation.The first power amplifier selects a transmitting antenna to be radiated to the space by the second selector switch after the signal power of the first transmitter is amplified.The second transmitter is operated in the second frequency range, counts to issue after the number of delivering a letter is modulated on carrier wave with second to be radiated to the space by the first transmitting antenna after the second power amplifier amplifies.
Description of drawings
Fig. 1 is the theory diagram that the small-sized observing and controlling number of two-band channel multiplexing of the present invention passes system.
Embodiment
Below in conjunction with description of drawings the preferred embodiments of the present invention.
Fig. 1 is the theory diagram that the small-sized observing and controlling number of two-band channel multiplexing of the present invention passes system, and the small-sized observing and controlling number of a kind of two-band channel multiplexing passes system, and this system comprises:
Overpay reception antenna 1, receive the multiple wireless signal of telecommunication from the space;
The first transmitting antenna 2 is overpaied the described multi-path radio signal amplitude that reception antenna 1 receives and is incident upon the space described with the frequency of the second frequency range;
Overpay the second transmitting antenna 3, overpay the described multi-path radio signal amplitude that reception antenna 1 receives and be incident upon the space described with the frequency of the first frequency range;
Acknowledge communication module 4, the described described multiple wireless signal of telecommunication of overpaying reception antenna 1 reception is selected, and through the modulation after the output multi-channel remote signal, receive simultaneously one first remote measurement/number number of delivering a letter 45, and with described the first remote measurement/number number of delivering a letter 45 output one second output signal after relevant and modulation;
The first power amplifier 5 is connected with described acknowledge communication module 4, is operated in the first frequency range described the second output signal is carried out power amplification;
The second selector switch 6 is connected with described the first power amplifier 5, receives described the second output signal of carrying out after power amplification, and outputs it to described second transmitting antenna 3 of overpaying;
Transmitter module 7 receives the one second number number of delivering a letter 8, and is transmitted to described the first transmitting antenna 2 after described the second number number of delivering a letter 8 is amplified.
Wherein, acknowledge communication module 4 can be answering machine, communication equipment or acknowledge communication machine, and this module comprises:
The first selector switch 41 is connected with the described reception antenna 1 of overpaying, and selects the two-way radio signal to export from the described multiple wireless signal of telecommunication of overpaying reception antenna 1;
The first receive path 42, be connected with described the first selector switch 41, road radio signal in described two-way radio signal is demodulated into the first remote signal 46 to be exported, catch simultaneously a carrier signal and reference signal, with the relevant described reference signal of described carrier signal and export a coherent signal;
The first transmitter 44 is connected with described the first receive path 42, take described coherent signal as launching carrier wave and modulate rear output with described the first remote measurement/number number of delivering a letter 45 with reference to generating;
The second receive path 43 is connected with described the first selector switch 41, another road radio signal in described two-way radio signal is demodulated into the second remote signal 47 exports.
During concrete enforcement, the first receive path 42 and the second receive path 43 can adopt heterodyne system design, Direct-conversion design, mirror image to suppress design or Design of Digital IF.The first selector switch 41, the first receive path 42, the second receive path 43 and the first transmitter 44 are the integral type structure, also can be two or more structure designs.
Wherein, transmitter module 7 can be transmitter, number transmission transmitter or communication equipment, and this module comprises:
The second transmitter 71 receives the one second number number of delivering a letter 8, with output after described the second number number of delivering a letter 8 modulation;
Thesecond power amplifier 72 is connected with described the second transmitter 71, is operated in the second frequency range the output signal of the second transmitter 71 is carried out power amplification.
The second transmitter 71 and thesecond power amplifier 72 can be integral structures.
During concrete enforcement, above-mentioned the first power amplifier 5 and thesecond power amplifier 72 are solid-state power amplifier or travelling wave tube power amplifier.The first transmitter 44 and thesecond transmitter 72 can adopt direct frequency doubling design, up-conversion design, phase locking frequency multiplying design, multiple-frequency modulation to merge design or separately design of multiple-frequency modulation.
Overpay in reception antenna 1 arbitrary pair, the first transmitting antenna 2 and arbitrary pair of overpaying in the second transmitting antenna 3 and be a period of time antenna, helical antenna, horn antenna, reflector antenna or microstrip antenna, its working method is omni-directional, orthotype or excipient.
The first frequency range and the second frequency range are VHF frequency range, uhf band, L frequency range, S frequency range, C frequency range, X frequency range, Ku frequency range, K frequency range, Ka frequency range, millimeter wave frequency band or submillimeter wave frequency range.
The below further is described the course of work that the small-sized observing and controlling number of a kind of two-band channel multiplexing of the present invention passes system.
After spacecraft entered space flight, ground control station carried out tracking measurement, sending controling instruction by radio signal to spacecraft, and spacecraft sends to ground control station with the telemetered signal of low rate and the data-signal of two-forty.The observing and controlling of spacecraft is counted tracking measurement signal, the remote signal that the biography system is used for receiving the ground control station emission and telemetered signal, the number number of delivering a letter is beamed back ground control station with the tracking measurement signal that receives.
Observing and controlling is counted the biography system and is had two-band, and two frequency ranges can be worked simultaneously also can time-sharing work.Can be with communicating between a frequency range and ground observing and controlling net, another frequency range is used for communicating by letter between spacecraft and spacecraft, also two frequency ranges all can be used for and the ground observing and controlling net between communicate, improve the reliability of communicating by letter.
Remote signal adopts the PCM-PSK-PM modulation system, and telemetered signal also adopts the PCM-PSK-PM modulation system, and the tracking measurement signal adopts the PM modulation system, and data-signal adopts BPSK or QPSK modulation system.In the design, telemetered signal adopts the identical multiplexing same transmission of modulation system with data-signal, can simplify channel design, reduces the design difficulty of transmitter, improves the reliability of transmitter.
In sum, the present invention proposes the small-sized observing and controlling number of a kind of two-band channel multiplexing and pass system.Utilize product of the present invention, between spacecraft and ground observing and controlling net, can adopt two-band work between spacecraft and spacecraft, telemetered signal can adopt identical modulation system multipling channel with data-signal, and design adopts integrated structural design can reach the little lightweight advantage of volume.
Above disclosed be only a specific embodiment of the present invention, but the present invention is not limited thereto, the changes that any person skilled in the art can think of only otherwise exceed the described scope of appended claims, all should drop in protection scope of the present invention.
Claims (13)
1. the small-sized observing and controlling number of two-band channel multiplexing passes system, it is characterized in that, this system comprises:
Overpay reception antenna, receive the multiple wireless signal of telecommunication from the space;
The first transmitting antenna is overpaied the described multi-path radio signal amplitude that reception antenna receives and is incident upon the space described with the frequency of the second frequency range;
Overpay the second transmitting antenna, overpay the described multi-path radio signal amplitude that reception antenna receives and be incident upon the space described with the frequency of the first frequency range;
The acknowledge communication module, the described described multiple wireless signal of telecommunication of overpaying the reception antenna reception is selected, and after modulation the output multi-channel remote signal, receive simultaneously one first remote measurement/number number of delivering a letter, and will described the first remote measurement/number number of delivering a letter export one second output signal through relevant reaching after modulating;
The first power amplifier is connected with described acknowledge communication module, is operated in the first frequency range described the second output signal is carried out power amplification;
The second selector switch is connected with described the first power amplifier, receives described the second output signal of carrying out after power amplification, and outputs it to described second transmitting antenna of overpaying;
Transmitter module receives the one second number number of delivering a letter, and is transmitted to described the first transmitting antenna after described the second number number of delivering a letter is amplified.
2. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described acknowledge communication module comprises:
The first selector switch is connected with the described reception antenna of overpaying, and selects the two-way radio signal to export from the described multiple wireless signal of telecommunication of overpaying reception antenna;
The first receive path, be connected with described the first selector switch, road radio signal in described two-way radio signal is demodulated into the first remote signal exports, catch simultaneously a carrier signal and reference signal, with the relevant described reference signal of described carrier signal and export a coherent signal;
The first transmitter is connected with described the first receive path, take described coherent signal as launching carrier wave and modulate rear output with described the first remote measurement/number number of delivering a letter with reference to generating;
The second receive path is connected with described the first selector switch, another road radio signal in described two-way radio signal is demodulated into the second remote signal exports.
3. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 2 passes system, it is characterized in that, described the first power amplifier and the second power amplifier are solid-state power amplifier or travelling wave tube power amplifier.
4. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 2 passes system, it is characterized in that, the be designed to heterodyne system, Direct-conversion formula, mirror image of described the first receive path and the second receive path suppress formula or digital intermediate frequency formula.
5. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 2 passes system, it is characterized in that, described the first selector switch, the first receive path, the second receive path and the first transmitter are the integral type structure, is perhaps two or more structure designs.
6. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described acknowledge communication module is answering machine, communication equipment or acknowledge communication machine.
7. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described transmitter module comprises:
The second transmitter receives the one second number number of delivering a letter, with output after described the second number number of delivering a letter modulation;
The second power amplifier is connected with described the second transmitter, is operated in the second frequency range the output signal of the second transmitter is carried out power amplification.
8. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 7 passes system, it is characterized in that the direct frequency doubling formula that is designed to, up-conversion formula, Phase-locked Multi-frequency, multiple-frequency modulation combination type or the multiple-frequency modulation split of described the first transmitter and the second transmitter.
9. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 7 passes system, it is characterized in that, described the second transmitter and described the second power amplifier are the integral type structure.
10. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described transmitter module is transmitter, number transmission transmitter or communication equipment.
11. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, describedly overpay in reception antenna arbitrary pair, described the first transmitting antenna and described arbitrary pair of overpaying in the second transmitting antenna is a period of time antenna, helical antenna, horn antenna, reflector antenna or microstrip antenna.
12. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described to overpay reception antenna, described the first transmitting antenna and described working method of overpaying the second transmitting antenna be omni-directional, orthotype or excipient.
13. the small-sized observing and controlling number of two-band channel multiplexing as claimed in claim 1 passes system, it is characterized in that, described the first frequency range and the second frequency range are VHF frequency range, uhf band, L frequency range, S frequency range, C frequency range, X frequency range, Ku frequency range, K frequency range, Ka frequency range, millimeter wave frequency band or submillimeter wave frequency range.
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| CN201310025744.4ACN103117792B (en) | 2013-01-22 | 2013-01-22 | Dual-band channel multiplexing small-scale measurement and control data transmission system |
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| CN114459949A (en)* | 2021-10-18 | 2022-05-10 | 上海埃依斯航天科技有限公司 | Near space atmospheric density detection system and device |
| CN114459949B (en)* | 2021-10-18 | 2024-08-23 | 上海埃依斯航天科技有限公司 | Near space atmospheric density detection system and device |
| CN115314066A (en)* | 2022-07-20 | 2022-11-08 | 中国科学院微小卫星创新研究院 | Measurement and control communication device and method for deep space exploration spacecraft |
| CN115314066B (en)* | 2022-07-20 | 2023-10-27 | 中国科学院微小卫星创新研究院 | Measurement and control communication device and method for deep space exploration spacecraft |
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| CN103117792B (en) | 2015-06-03 |
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