CN106533531A - Manmade satellite communication device - Google Patents
Manmade satellite communication device Download PDFInfo
- Publication number
- CN106533531A CN106533531A CN201610899075.7A CN201610899075A CN106533531A CN 106533531 A CN106533531 A CN 106533531A CN 201610899075 A CN201610899075 A CN 201610899075A CN 106533531 A CN106533531 A CN 106533531A
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- CN
- China
- Prior art keywords
- communication
- algorithms
- signal
- modem
- algorithm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
- H04B7/18508—Communications with or from aircraft, i.e. aeronautical mobile service with satellite system used as relay, i.e. aeronautical mobile satellite service
Abstract
The invention relates to a manmade satellite communication device which comprises a receiver, a transmitter, an analog-to-digital converter, a digital-analog-converter, a modem and a control module. The modem is provided therein with a system memory; and the system memory is intrinsically provided with communication algorithms. The system memory is able to switch among the communication algorithms according to ground instructions.
Description
Technical field
A kind of the present invention relates to communications field, more particularly to satellite assisted communication machine.
Background technology
With flourishing for micro-nano satellite technology, micro-nano satellite is applied to more and more widely to communicate, navigates, remote sensing
With the field such as scientific experimentss.Extensive application and satellite-based communications of the micro-nano satellite in fields such as communication, navigation, remote sensing and scientific experimentss
System is closely related.Star ground or between star data interaction is realized with micro-nano satellite satellite-based communications system.By satellite-based communications
System star ground or data interaction between star complete star ground observing and controlling, star number pass, the task such as relaying between communication or star between star.
At present, as domestic tradition S frequency range satellite-based communications units have different communication systems, cause the communication equipment of different communication system
Between be unable to intercommunication.Especially for multipurpose micro-nano satellite, the communication unit of different systems is adopted on same micro-nano satellite
Machine will increase the weight of micro-nano satellite, make satellite miniaturization become difficult.
The content of the invention
In order that a communication equipment can be communicated between different communication system, the invention provides one kind is artificial defended
Star communication equipment, including receiver, transmitter, analog-digital converter, digital to analog converter, modem and control module；It is described
System memorizer is provided with modem, and the system memorizer is solidified with the communication of algorithms；The system memorizer can be by
Switch the communication of algorithms according to surface instruction, the modem is according to communication of algorithms modulation-demodulation signal.
Preferably, the communication of algorithms be USB observing and controlling algorithms, Spread Spectrum TT＆C algorithm, number propagation algorithm, relaying spread spectrum algorithm or
At least two kinds between person's star in the communication of algorithms.
Preferably, the receiver receives signal using a phase-locked loop circuit.
Preferably, the transmitter adopts secondary phase-locked loop circuit transmission signal.
Preferably, the modem is provided with static RAM, and the static RAM sets
Have an antifuse device, the static RAM is solidified with the communication of algorithms, the static RAM it is logical
Letter algorithm is synchronous with the communication of algorithms of the system memorizer, if antifuse device monitors that single event occurs, described
The communication of algorithms that modem is provided according to the static RAM is resisting single event.
Compared with prior art, the different communications of algorithms are provided with the modem, this causes artificial satellite to lead to
Letter machine can be realized being communicated under the different communications of algorithms according to surface instruction.The communication equipment adopts a phaselocked loop electricity
Road receives the structure that signal can simplify receiver.The unwanted sideband that nearby carriers can be eliminated using secondary phase-locked loop circuit makes
Signal is undistorted.Using the static RAM for being solidified with the communication of algorithms and arrange antifuse device monitoring communication
Machine, enables communication equipment to resist single event.
Description of the drawings
Fig. 1 is the functional circuit schematic diagram of satellite assisted communication machine.
Fig. 2 is frequency down-conversion function circuit diagram of receiver.
Fig. 3 is the secondary upconversion function circuit diagram of transmitter.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is elaborated, guarantor of the specific embodiment to the present invention
Shield scope does not have restriction effect.
As shown in the functional circuit schematic diagram of Fig. 1 satellite assisted communication machines, which provides a kind of satellite assisted communication machine, bag
Include receiver 12, transmitter 113, analog-digital converter 14, digital to analog converter 111, modem 16, and control module 18.
Receiver 12 is for being down-converted to 70MHz analog receiving signals 13 by 2GHz analog receiving signals 11.
13 Jing Analog to Digital Converter 14 of 70MHz analog receiving signals is changed into digital received signals 15.
Digital received signals 15 are demodulated into reception source signal 17 through modem 16.
Reception source signal 17 is sent to control module 18 and enters row decoding.
Transmitter 113 is for upconverting to 2GHz analog transmissions signal 114 by 70MHz analog transmissions signal 112.
Control module 18 is sent to modem 16 by source signal 19 is launched.
Become modulated signal 110 after transmitting 19 modulated demodulator 16 of source signal.
110 Jing Digital to Analog Converter 111 of modulated signal is changed into 70MHz analog transmissions signal 112.
112 emitted machine 113 of 70MHz analog transmissions signal up-converts to 2GHz analog transmissions signal 114.
Modem 16 is provided with system and deposits all devices 115.System memorizer 115 is solidified with USB observing and controlling algorithms, Spread Spectrum TT＆C
At least two kinds communications of algorithms between algorithm, number propagation algorithm, relaying spread spectrum algorithm or star in the communication of algorithms.
If ground sends system switching command and gives satellite-based communications machine, 2GHz switching commands analogue signal is under receiver 11
It is converted to 70MHz switching command analogue signals.70MHz switching command analogue signals Jing Analog to Digital Converter 14 is changed into switching command
Digital signal.Switching command digital signal is demodulated into switching command source signal through modem 16.Modem
Switching command source signal is sent to control module 18 by 16 enters row decoding.Switching command source signal is Jing after control module decoding
It is converted into appointing in the communication of algorithms between USB observing and controlling algorithms, Spread Spectrum TT＆C algorithm, number propagation algorithm, relaying spread spectrum algorithm or star
The instruction that a kind of communication of algorithms of anticipating is called.Control module 18 sends instruction to modem 16, calls system memorizer
The communication of algorithms in 115 carrys out modulation /demodulation communication system signal.
System signal belongs to PSK-PM system signals, QPSK systems signal or DS-CDMA system signals.
Under PSK-PM systems, modulation /demodulation module completes carrier synchronization, side-tone ranging forwarding, remote signal demodulation, carrier wave
Coherent forwarding and range finding remote measurement modulation.
Under QPSK systems, modulation /demodulation module completes speed conversion and high speed data modulations.
Under DS-CDMA systems, modulation /demodulation module completes carrier synchronization, PN synchronization, remote signal recovery, incoherent survey
Away from, telemetry band spectrum modulation.
As shown in frequency down-conversion function circuit diagram of Fig. 2 receivers, receiver receives signal using a phase-locked loop circuit,
2GHz analog receiving signals are down-converted to into 70MHz analog receiving signals.2GHz analog receiving signals pass through low-noise amplifier
It is exaggerated after 21, its amplitude strengthens.The amplification of low-noise amplifier 21 increases overflows for 18.4dB, and its noise coefficient is 1.2dB.Amplify
The received machine front mirror wave filter 22 of signal removes image frequency interference signal.Then, the 2GHz simulations that amplitude is exaggerated connect
The collection of letters number is changed into -60 to -10 decibels by frequency mixer 23, its amplitude, and its frequency is changed into 70MHz.Amplitude is -60 to -10 decibels
And frequency passes through to be exaggerated after the first intermediate frequency amplifier 24 for the signal of 70MHz, it is sampled signal amplitude and is changed into 30 decibels and frequency
Rate is 70MHz, and frequency is not noise signal in the signal of 70MHz.Sampled signal and noise signal pass through the first wave filter simultaneously
25, noise signal is removed.The sampled signal that amplitude is 30 decibels and frequency is 70MHz is put by the second intermediate frequency amplifier 26
Greatly, its amplitude is changed into 70 decibels, signal of its frequency for 70MHz.Amplitude is 70 decibels, and its frequency passes through for the signal of 70MHz
Second wave filter 27, its amplitude are 0 decibel, and its frequency is 70MHz.Amplitude is 0 decibel, and its frequency is entered for the signal of 70MHz
Analog-digital converter is changed into digital signal.After 56.265MHz signals and frequency control word signal 29 enter lock phase local oscillator 28, this is produced
Shake signal.This signal enters back into frequency mixer 23 and input signal is extracted.Modem 16 passes through orthogonal lack sampling side
Formula extracts signal, sample frequency fsWith signal frequency f exported from receiver 12cBetween meet sample frequency fs=4fc/(2n-
1), n is natural relation.Mid frequency of the modem 16 by detection up-link carrier, if meeting above-mentioned relation, carries
Ripple loop is closed, and captures upward signal.Mid frequency of the modem 16 by detection up-link carrier, if be unsatisfactory for above-mentioned
Relation, carrier loop are opened wide, and do not capture upward signal.So as to avoid 12 mid frequency of receiver from occurring with the thermal noise of input
Drift.
As shown in the secondary upconversion function circuit diagram of Fig. 3 transmitters, transmitter adopts secondary phase-locked loop circuit transmission signal,
70MHz analog transmissions signals are upconverted to into 2GHz analog transmissions signals.The signal flowed out from digital to analog converter is filtered by first
Retain its frequency after ripple device 31 for 18MHz signals.Frequency is that 18MHz is changed into frequency for 374MHz letters by the first frequency mixer 32
Number.374MHz signals pass through 33 purification signal of the second wave filter.The signal of 374MHz increases letter by the first intermediate frequency amplifier 34
Number energy.374MHz signals are changed into the signal that frequency is 2.2 to 2.3GHz by the second frequency mixer 35.Frequency be 2.2 to
The signal of 2.3GHz passes through the second wave filter purification.Signal after purification increases signal energy by the second amplifier 37.Increase
The signal of energy carries out second purification by the 3rd wave filter 38 again.The signal Jing the 3rd flowed out from the 3rd wave filter 38 amplifies
After device 39 amplifies, Jing is launched by transmitting antenna.For transmission signal the first local oscillator of mixing 311 by 356MH signal inputs first
Frequency mixer 32.For transmission signal the second local oscillator of mixing 310 by the second frequency mixer of 1.96GHz signal inputs 35.
Local oscillation signal is produced by frequency synthesis module.Frequency synthesis module is by fractional-N frequency synthesizer and integral frequency divisioil
Frequency synthesizer is constituted.Fractional-N frequency synthesizer produces fundamental frequency.Integral frequency divisioil frequency synthesizer produces mixing at different levels and use
In the clock of control module.By arranging a point times frequency ratio, frequency can be reconstructed in S frequency ranges.
If increasing the static RAM for being solidified with the communication of algorithms in communication equipment and being filled using antifuse
Put whether monitoring communication equipment occurs single event, if antifuse device judges that single event occurs, perform and once recover
The communication of algorithms is operated.So, satellite assisted communication machine will be provided with anti event of single particle safeguard function.It is provided with modem
Static RAM, static RAM are provided with antifuse device.Static RAM is solidified with
The communication of algorithms.The communication of algorithms of static RAM is synchronous with the communication of algorithms of the system memorizer.Single-particle thing
Part does not interfere with static RAM.If antifuse device is detected to single event occurred, then modulatedemodulate
Adjust the communication of algorithms modulation-demodulation signal that device is provided according to the static RAM to resist single event.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (5)
1. a kind of satellite assisted communication machine, including receiver, transmitter, analog-digital converter, digital to analog converter, modem with
And control module；Characterized in that, being provided with system memorizer in the modem, the system memorizer is solidified with communication
Algorithm；The system memorizer can switch the communication of algorithms according to surface instruction；The modem is adjusted according to the communication of algorithms
Demodulated signal processed.
2. satellite assisted communication machine according to claim 1, it is characterised in that the communication of algorithms is USB observing and controlling algorithms, expansion
At least two kinds between frequency observing and controlling algorithm, number propagation algorithm, relaying spread spectrum algorithm or star in the communication of algorithms.
3. satellite assisted communication machine according to claim 1, it is characterised in that the receiver adopts a phase-locked loop circuit
Receive signal.
4. satellite assisted communication machine according to claim 1, it is characterised in that the transmitter adopts secondary phase-locked loop circuit
Transmission signal.
5. satellite assisted communication machine according to claim 1, it is characterised in that the modem is provided with static random and deposits
Access to memory, the static RAM are provided with antifuse device, and the static RAM is solidified with logical
Letter algorithm, the communication of algorithms of the static RAM are synchronous with the communication of algorithms of the system memorizer, if anti-molten
Silk device monitors that single event occurs, then the modem is according to leading to that the static RAM is provided
Believe algorithm to resist single event.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899075.7A CN106533531A (en) | 2016-10-14 | 2016-10-14 | Manmade satellite communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899075.7A CN106533531A (en) | 2016-10-14 | 2016-10-14 | Manmade satellite communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106533531A true CN106533531A (en) | 2017-03-22 |
Family
ID=58331868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610899075.7A Pending CN106533531A (en) | 2016-10-14 | 2016-10-14 | Manmade satellite communication device |
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| Country | Link |
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| CN (1) | CN106533531A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826376A (en) * | 2022-03-30 | 2022-07-29 | 大连大学 | Micro-nano satellite multi-target optimization resource allocation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001018996A1 (en) * | 1999-09-08 | 2001-03-15 | Motorola Inc. | Packet transmission method |
| CN1352493A (en) * | 2000-11-13 | 2002-06-05 | 李亮 | Public mobile communication device in passenger airplane |
| US7274906B1 (en) * | 2003-09-16 | 2007-09-25 | At & T Bls Intellectual Property, Inc. | Digital radio feedback systems |
| CN201872653U (en) * | 2010-10-27 | 2011-06-22 | 阳光凯讯(北京)科技有限公司 | System operation training manual (SOTM) comprehensive emergency communication safeguard vehicle |
| CN103402207A (en) * | 2013-08-01 | 2013-11-20 | 中国人民解放军理工大学 | Dynamically-variable resource allocation method for MF-TDMA (Multi-Frequency Time Division Multiple Access) satellite communication system |
| CN103971747A (en) * | 2013-01-24 | 2014-08-06 | 深圳市国微电子有限公司 | Anti-fuse programmable memory |
| CN105530043A (en) * | 2015-12-07 | 2016-04-27 | 中国电子科技集团公司第十研究所 | Airborne terminal compatible with dual-system satellite communication link work |
-
2016
- 2016-10-14 CN CN201610899075.7A patent/CN106533531A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001018996A1 (en) * | 1999-09-08 | 2001-03-15 | Motorola Inc. | Packet transmission method |
| CN1352493A (en) * | 2000-11-13 | 2002-06-05 | 李亮 | Public mobile communication device in passenger airplane |
| US7274906B1 (en) * | 2003-09-16 | 2007-09-25 | At & T Bls Intellectual Property, Inc. | Digital radio feedback systems |
| CN201872653U (en) * | 2010-10-27 | 2011-06-22 | 阳光凯讯(北京)科技有限公司 | System operation training manual (SOTM) comprehensive emergency communication safeguard vehicle |
| CN103971747A (en) * | 2013-01-24 | 2014-08-06 | 深圳市国微电子有限公司 | Anti-fuse programmable memory |
| CN103402207A (en) * | 2013-08-01 | 2013-11-20 | 中国人民解放军理工大学 | Dynamically-variable resource allocation method for MF-TDMA (Multi-Frequency Time Division Multiple Access) satellite communication system |
| CN105530043A (en) * | 2015-12-07 | 2016-04-27 | 中国电子科技集团公司第十研究所 | Airborne terminal compatible with dual-system satellite communication link work |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114826376A (en) * | 2022-03-30 | 2022-07-29 | 大连大学 | Micro-nano satellite multi-target optimization resource allocation method |
| CN114826376B (en) * | 2022-03-30 | 2023-11-10 | 大连大学 | Multi-objective optimized resource allocation method for micro-nano satellite |
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Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |