CN103490808A - Satellite-borne S frequency band relay user terminal system and application method based on spread spectrum system - Google Patents
Satellite-borne S frequency band relay user terminal system and application method based on spread spectrum system Download PDFInfo
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Abstract
The invention discloses a satellite-borne S frequency band relay user terminal system based on a spread spectrum system. The satellite-borne S frequency band relay user terminal system comprises a measurement and control responder 1; the measurement and control responder 1 establishes an S frequency band measurement and control link with a relay satellite through a wide wave beam S receiving antenna 2 to perform forward remote control communication; the measurement and control responder 1 amplifies the power of a backward remote control signal through a power amplifier 3 and establishes a measurement and control link with the relay satellite through a wide wave beam S transmitting antenna 4 or a narrow wave beam Ka/S antenna 5 for backward telemetering communication; the power amplifier 3 has one path of input and two paths of output and can control connection and disconnection of the two paths of signals through satellite program control or ground instructions. The invention further discloses an application method of the system. The concrete working mode is defined. The system and the method solve the problems that in the prior art, the single-time work time of communication between a satellite S frequency band relay user terminal and a relay satellite is short and the Ka/S link establishment process can not monitored, and enhances the satellite emergency measurement and control capacity.
Description
Technical field
The present invention relates to satellite TT&C, especially satellite and repeater satellite are set up and are communicated by letter, and by repeater satellite repeater satellite signal, specifically a kind of spaceborne S frequency range trunk subscriber terminal system and application process based on the spread spectrum system.
Background technology
Novel satellite borne S frequency range trunk subscriber terminal, for communicating by letter between satellite and repeater satellite, can provide a forward path and two back passages, and two are returned and ask that passage is respectively the large gain passage of power amplifier and little gain passage; Large gain passage, because the S transmitting antenna has antenna beam width, easily makes the repeater satellite lock-on signal, but the large characteristics of power consumption; Little gain passage has the little and Ka/S antenna of power consumption and has the ability of adaptive tracing, can set up and communicate by letter for a long time with repeater satellite, but wave beam is narrow, and repeater satellite is difficult for lock-on signal.Before application the present invention; spaceborne separate unit measuring and controlling equipment only has single transmission channel to the relaying TT&C system; and adopt that single S transmission channel pattern power consumption is large, the single operating time is short; adopt single Ka/S transmission channel pattern; capture time is long; can't monitor Ka/S link setup process, emergent observation and control ability is poor;
Do not find at present explanation or the report of technology similar to the present invention, not yet collect both at home and abroad similarly data yet.
Summary of the invention
The present invention is directed to above shortcomings in prior art, a kind of spaceborne S frequency range trunk subscriber terminal system and application process based on the spread spectrum system is provided.
The present invention is achieved by the following technical solutions.
According to an aspect of the present invention, provide a kind of spaceborne S frequency range trunk subscriber terminal system and application process based on the spread spectrum system, comprised observing and controlling answering machine, S reception antenna, power amplifier, S transmitting antenna and Ka/S antenna, wherein:
Described observing and controlling answering machine, receive by repeater satellite and forward next ground remote control signal, completes demodulation, and send remote terminal by the remote control base band data; Receive telemetry on Satellite, after completing band spectrum modulation, by power amplifier, carry out the signal amplification, amplified signal sends through S transmitting antenna or Ka/S days alignment repeater satellites again;
Described S reception antenna, for satellite and repeater satellite are set up forward direction observing and controlling passage, receive the forward direction remote signal that repeater satellite is sent, and pass to the observing and controlling answering machine, and because wave beam is wide, field range is wide, is easy to catch the repeater satellite signal; When the attitude of satellite spins upside down, can be used as the remote signal that the TT&C antenna satellite receiver sends over the ground;
Described power amplifier, issue the observing and controlling answering machine back telemetered signal of S transmitting antenna or Ka/S antenna and amplified, and makes antenna EIRP (effective isotropic radiated power) reach the requirement of satellite and repeater satellite telemetry communication; Power amplifier inside arranges two passages, and wherein, first passage is large gain passage; send signal to S transmitting antenna (4); this passage gain amplifier is large, and power consumption is larger, is applicable to the satellite private Ka/S link establishment of signal capture in the early stage real time monitoring of communicating by letter with repeater satellite; Second passage is little gain passage, sends signal to Ka/S antenna (5), and this passage gain amplifier is little, and power consumption is less, is applicable to the back telemetry communication after satellite and repeater satellite complete the Ka/S link establishment;
Described S transmitting antenna, for satellite and repeater satellite are set up back observing and controlling passage, receive the back telemetered signal that the observing and controlling answering machine is sent, and because wave beam is wide, field range is wide, is easy to make the repeater satellite lock-on signal; When the attitude of satellite spins upside down, can be used as over the ground the TT&C antenna transmission telemetered signal of standing earthward;
Described Ka/S antenna, share with spaceborne Ka frequency range trunk subscriber terminal, possesses S frequency band signals emission function, and for satellite and repeater satellite are set up relaying observing and controlling passage, the back telemetered signal that reception observing and controlling answering machine is sent also sends to repeater satellite; After satellite and repeater satellite Ka/S link establishment, take over the S transmitting antenna and send the back telemetered signal to repeater satellite.
Preferably, described S reception antenna and S transmitting antenna are the broad beam fixed antenna; Described Ka/S antenna is the narrow beam directional antenna.
Preferably, described Ka/S antenna has two-dimensional rotation mechanism, can, from the motion tracking repeater satellite, realize the communication of single long period.
Another aspect of the present invention, provide a kind of application process of the above-mentioned spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system, comprises the steps:
Step 1, according to the Satellite TT demand, determine the spread spectrum system that the observing and controlling answering machine adopts, more further according to definite spread spectrum system, determine the quantity of forward direction observing and controlling passage and back observing and controlling passage;
Step 2, according to repeater satellite orbit and relaying observing and controlling passage index thereof, design, to relaying observing and controlling link, is determined relaying TT&C antenna beamwidth and gain requirement to relaying observing and controlling link, chooses S reception antenna and the S transmitting antenna of proper orientation figure;
Step 3; according to the gain design result of relaying observing and controlling link in step 2, determine receiving sensitivity and the transmitting power of observing and controlling answering machine, choose suitable Ka/S antenna; requirement meets communicating requirement to G/T value and the EIRP value of relaying observing and controlling passage, chooses suitable power amplifier simultaneously;
Step 4, the program control or large gain passage of repeater satellite transmission instruction unpack power amplifier by satellite, the back telemetered signal sends to repeater satellite by the S transmitting antenna, sets up the back telemetry link, but ground real time monitoring Ka/S link establishment process; Ka/S antenna follow procedure is set and is pointed to repeater satellite; carry out KSA (K ripple single access service), the foundation of SSA (S-band single access service) return link; after link establishment (from motion tracking); by satellite, program control or repeater satellite sends instruction and cuts out the large gain passage of power amplifier; open little gain passage, the back telemetered signal sends by the Ka/S antenna;
Step 5, the observing and controlling mode of operation of the spaceborne S frequency range trunk subscriber terminal system of definition based on the spread spectrum system, when repeater satellite carries out telemetry communication according to described mode of operation requirement work.
Preferably, in step 1, determine that the observing and controlling answering machine adopts incoherent spread spectrum system.
Preferably, in step 4, S transmitting antenna and the associated working of Ka/S antenna.
Preferably, in step 5, the observing and controlling mode of operation comprises:
Pattern 1: the back remote measurement, open the large gain passage of power amplifier from master mode or repeater satellite transmission forward direction remote control command via satellite, set up the back telemetry link;
Pattern 2: forward direction remote control and back remote measurement;
Mode 3: the forward direction remote control, receive path, in normal on-mode, all can be implemented remote control task or the observing and controlling of meeting an urgent need in the visible segmental arc of repeater satellite.
Spaceborne S frequency range trunk subscriber terminal system and application process based on the spread spectrum system provided by the invention, solved in prior art between spaceborne user terminal and repeater satellite, defy capture, the operating time is short, can't monitor the problems such as Ka/S link setup process, can realize improving the capture ability of spaceborne user terminal to repeater satellite, increase and the repeater satellite call duration time, improve emergent observation and control ability.
The present invention is due to the characteristics of integrated use broad beam S reception, transmitting antenna, narrow beam Ka/S antenna and binary channels power amplifier, improved the bidirectional acquisition ability of spaceborne user terminal and repeater satellite, increased and the repeater satellite call duration time, supervisory user terminal and repeater satellite Ka/S link establishment process, improved emergent observation and control ability in real time.Obtained beneficial effect at aspects such as reducing satellite configuration, saving satellite resource, reduction satellite cost.
The accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is structural representation of the present invention;
In figure: 1 is the observing and controlling answering machine, and 2 is the S reception antenna, and 3 is power amplifier, and 4 is the S transmitting antenna, and 5 is the Ka/S antenna.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented take technical solution of the present invention under prerequisite, has provided detailed execution mode and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
As shown in Figure 1, the present embodiment provides a kind of spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system, comprises observing and controlling answering machine 1, S reception antenna 2, power amplifier 3, S transmitting antenna 4 and Ka/S antenna 5, particularly:
Described observing and controlling answering machine 1, receive by repeater satellite and forward next ground remote control signal, completes demodulation, and send remote terminal by the remote control base band data; Receive telemetry on Satellite, after completing band spectrum modulation, by power amplifier, carry out the signal amplification, amplified signal sends through S transmitting antenna or Ka/S days alignment repeater satellites again;
Described S reception antenna 2, for satellite and repeater satellite are set up forward direction observing and controlling passage, receive the forward direction remote signal that repeater satellite is sent, and pass to the observing and controlling answering machine, and because wave beam is wide, field range is wide, is easy to catch the repeater satellite signal; When the attitude of satellite spins upside down, can be used as the remote signal that the TT&C antenna satellite receiver sends over the ground;
Described power amplifier 3, issue the observing and controlling answering machine back telemetered signal of S transmitting antenna or Ka/S antenna and amplified, and makes antenna EIRP (effective isotropic radiated power) reach the requirement of satellite and repeater satellite telemetry communication; Power amplifier inside arranges two passages, and wherein, first passage is large gain passage; send signal to 5 transmitting antennas (4); this passage gain amplifier is large, and power consumption is larger, is applicable to the satellite private Ka/S link establishment of signal capture in the early stage real time monitoring of communicating by letter with repeater satellite; Second passage is little gain passage, sends signal to Ka/S antenna (5), and this passage gain amplifier is little, and power consumption is less, is applicable to the back telemetry communication after satellite and repeater satellite complete the Ka/S link establishment;
Described S transmitting antenna 4, for satellite and repeater satellite are set up back observing and controlling passage, receive the back telemetered signal that the observing and controlling answering machine is sent, and because wave beam is wide, field range is wide, is easy to make the repeater satellite lock-on signal; When the attitude of satellite spins upside down, can be used as over the ground the TT&C antenna transmission telemetered signal of standing earthward;
Described Ka/S antenna 5, share with spaceborne Ka frequency range trunk subscriber terminal, possesses S frequency band signals emission function, and for satellite and repeater satellite are set up relaying observing and controlling passage, the back telemetered signal that reception observing and controlling answering machine is sent also sends to repeater satellite; After satellite and repeater satellite Ka/S link establishment, take over the S transmitting antenna and send the back telemetered signal to repeater satellite.
Further, described S reception antenna and S transmitting antenna are the broad beam fixed antenna; Described Ka/S antenna is the narrow beam directional antenna.
Further, described Ka/S antenna has two-dimensional rotation mechanism, can, from the motion tracking repeater satellite, realize the communication of single long period.
The spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system that this enforcement provides, its application process comprises the steps:
Step 1, according to the Satellite TT demand, determine the spread spectrum system that the observing and controlling answering machine adopts, more further according to definite spread spectrum system, determine the quantity of forward direction observing and controlling passage and back observing and controlling passage;
Step 2, according to repeater satellite orbit and relaying observing and controlling passage index thereof, design, to relaying observing and controlling link, is determined relaying TT&C antenna beamwidth and gain requirement to relaying observing and controlling link, chooses S reception antenna and the S transmitting antenna of proper orientation figure;
Step 3; according to the gain design result of relaying observing and controlling link in step 2, determine receiving sensitivity and the transmitting power of observing and controlling answering machine, choose suitable Ka/S antenna; requirement meets communicating requirement to G/T value and the EIRP value of relaying observing and controlling passage, chooses suitable power amplifier simultaneously;
Step 4, the program control or large gain passage of repeater satellite transmission instruction unpack power amplifier by satellite, the back telemetered signal sends to repeater satellite by the S transmitting antenna, sets up the back telemetry link, but ground real time monitoring Ka/S link establishment process; Ka/S antenna follow procedure is set and is pointed to repeater satellite; carry out KSA (K ripple single access service), the foundation of SSA (S-band single access service) return link; after link establishment (from motion tracking); by satellite, program control or repeater satellite sends instruction and cuts out the large gain passage of power amplifier; open little gain passage, the back telemetered signal sends by the Ka/S antenna;
Step 5, the observing and controlling mode of operation of the spaceborne S frequency range trunk subscriber terminal system of definition based on the spread spectrum system, as shown in Table 1, when repeater satellite carries out telemetry communication according to described mode of operation requirement work.
Further, in step 1, determine that the observing and controlling answering machine adopts incoherent spread spectrum system.
Further, in step 4, S transmitting antenna and the associated working of Ka/S antenna.
Further, in step 5, the observing and controlling mode of operation comprises:
Pattern 1: the back remote measurement, open the large gain passage of power amplifier from master mode or repeater satellite transmission forward direction remote control command via satellite, set up the back telemetry link;
Pattern 2: forward direction remote control and back remote measurement;
Mode 3: the forward direction remote control, receive path, in normal on-mode, all can be implemented remote control task or the observing and controlling of meeting an urgent need in the visible segmental arc of repeater satellite.
Table 1
| Pattern | Forward direction | Back |
| 1 | -- | Remote measurement |
| 2 | Remote control | Remote measurement |
| 3 | Remote control | -- |
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (7)
1. the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system, it is characterized in that, comprise observing and controlling answering machine (1), S reception antenna (2), power amplifier (3), S transmitting antenna (4) and Ka/S antenna (5), wherein:
Described observing and controlling answering machine (1),
-reception forwards next ground remote control signal by repeater satellite, completes demodulation, and send remote terminal by the remote control base band data;
-receive telemetry on Satellite, after completing band spectrum modulation, by power amplifier (3), carry out the signal amplification, amplified signal sends to repeater satellite through S transmitting antenna (4) or Ka/S antenna (5) again;
Described S reception antenna (2), for setting up forward direction observing and controlling passage between satellite and repeater satellite, receive the forward direction remote signal that repeater satellite is sent, and pass to observing and controlling answering machine (1); When the attitude of satellite spins upside down, as the remote signal that the TT&C antenna satellite receiver sends over the ground;
Described power amplifier (3), issue observing and controlling answering machine (1) the back telemetered signal of S transmitting antenna (4) or Ka/S antenna (5) and amplified, and makes antenna EIRP reach the requirement of satellite and repeater satellite telemetry communication; Power amplifier (3) inside arranges two passages, and wherein, first passage is large gain passage, sends signal to S transmitting antenna (4), for satellite, with repeater satellite, communicate by letter signal capture and Ka/S link establishment real time monitoring in earlier stage; Second passage is little gain passage, sends signal to Ka/S antenna (5), for satellite and repeater satellite, completes the back telemetry communication after the Ka/S link establishment;
Described S transmitting antenna (4), for setting up back observing and controlling passage between satellite and repeater satellite, receive the back telemetered signal that observing and controlling answering machine (1) is sent; When the attitude of satellite spins upside down, as the ground TT&C antenna transmission telemetered signal of standing earthward;
Described Ka/S antenna (5); with spaceborne Ka frequency range trunk subscriber terminal, share; possess S frequency band signals emission function, for satellite and repeater satellite are set up relaying observing and controlling passage, receive the back telemetered signal that observing and controlling answering machine (1) sends and also send to repeater satellite; After satellite and repeater satellite Ka/S link establishment, take over S transmitting antenna (4) and send the back telemetered signal to repeater satellite.
2. the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system according to claim 1, is characterized in that, described S reception antenna (2) and S transmitting antenna (4) are the broad beam fixed antenna; Described Ka/S antenna (5) is the narrow beam directional antenna.
3. the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system according to claim 2, is characterized in that, described Ka/S antenna (5) has two-dimensional rotation mechanism, can, from the motion tracking repeater satellite, realize the communication of single long period.
4. the application process of the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system as claimed any one in claims 1 to 3, is characterized in that, comprises the steps:
Step 1, according to the Satellite TT demand, determine the spread spectrum system that observing and controlling answering machine (1) adopts, more further according to definite spread spectrum system, determine the quantity of forward direction observing and controlling passage and back observing and controlling passage;
Step 2; according to repeater satellite orbit and relaying observing and controlling passage index thereof; design, to relaying observing and controlling link, is determined relaying TT&C antenna beamwidth and gain requirement to relaying observing and controlling link, chooses S reception antenna (2) and the S transmitting antenna (4) of proper orientation figure;
Step 3; gain design result according to relaying observing and controlling link in step 2; determine receiving sensitivity and the transmitting power of observing and controlling answering machine (1); choose suitable Ka/S antenna (5); requirement meets communicating requirement to G/T value and the EIRP value of relaying observing and controlling passage, chooses suitable power amplifier (3) simultaneously;
Step 4; by satellite, program control or repeater satellite sends instruction unpack power amplifier (3) passage that gains greatly; the back telemetered signal sends to repeater satellite by S transmitting antenna (4), sets up the back telemetry link, but ground real time monitoring Ka/S link establishment process; Ka/S antenna (5) follow procedure is set and is pointed to repeater satellite; carry out KSA, the foundation of SSA return link; after link establishment; by satellite, program control or repeater satellite sends instruction and cuts out power amplifier (3) passage that gains greatly; open little gain passage, the back telemetered signal sends by Ka/S antenna (5);
Step 5, the observing and controlling mode of operation of the spaceborne S frequency range trunk subscriber terminal system of definition based on the spread spectrum system, when repeater satellite carries out telemetry communication according to described observing and controlling mode of operation requirement work.
5. the application process of the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system according to claim 4, is characterized in that, in step 1, determines that observing and controlling answering machine (1) adopts incoherent spread spectrum system.
6. the application process of the spaceborne S frequency range trunk subscriber terminal system based on the spread spectrum system according to claim 4, is characterized in that, in step 4, and S transmitting antenna (4) and Ka/S antenna (5) associated working.
7. the application process of the Novel satellite borne 5 frequency range trunk subscriber terminals based on the spread spectrum system according to claim 4, is characterized in that, in step 5, the observing and controlling mode of operation comprises:
Pattern 1: the back remote measurement, send the forward direction remote control command from master mode or repeater satellite via satellite and open power amplifier (3) passage that gains greatly, set up the back telemetry link;
Pattern 2: forward direction remote control and back remote measurement;
Mode 3: the forward direction remote control, receive path, in normal on-mode, all can be implemented remote control task or the observing and controlling of meeting an urgent need in the visible segmental arc of repeater satellite.
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| CN105721958A (en) * | 2016-02-02 | 2016-06-29 | 上海卫星工程研究所 | Remote control system for uplink multi-channel signals of low earth orbit satellite |
| CN106341175A (en) * | 2016-09-08 | 2017-01-18 | 上海卫星工程研究所 | Relay work module control method of rapid response task |
| CN107168347A (en) * | 2017-05-09 | 2017-09-15 | 上海航天控制技术研究所 | The visible segmental arc of Mars probes relay communication independently differentiates and drive control method |
| CN107332605A (en) * | 2017-06-22 | 2017-11-07 | 山东航天电子技术研究所 | A kind of investigating method that integrated TT＆C system is relayed based on Ka S frequency ranges |
| CN107786258A (en) * | 2017-10-27 | 2018-03-09 | 北京空间技术研制试验中心 | A kind of Tianhuangping pumped storage plant communication system of manned spacecraft |
| CN107820311A (en) * | 2017-12-05 | 2018-03-20 | 中国科学院云南天文台 | For the quick early warning system of solar radio burst interference navigational communications event |
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| CN108882374A (en) * | 2018-05-25 | 2018-11-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Ka frequency range multiple access TT&C Resources dispatching method |
| CN109039433A (en) * | 2018-09-13 | 2018-12-18 | 上海微小卫星工程中心 | A kind of installed load system of high throughput satellite |
| CN109873658A (en) * | 2019-01-31 | 2019-06-11 | 上海微小卫星工程中心 | A kind of Incorporate TT&C system |
| CN110011725A (en) * | 2019-05-07 | 2019-07-12 | 中国人民解放军32039部队 | Repeater satellite tracking and device |
| CN111245471A (en) * | 2020-04-03 | 2020-06-05 | 山西科泰航天防务技术股份有限公司 | Multi-target real-time telemetering method and system |
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| CN107168347B (en) * | 2017-05-09 | 2020-06-30 | 上海航天控制技术研究所 | Mars detector relay communication visible arc segment autonomous distinguishing and drive control method |
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| CN107786258B (en) * | 2017-10-27 | 2020-06-05 | 北京空间技术研制试验中心 | Space-based measurement and control communication system of manned spacecraft |
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| CN111245471A (en) * | 2020-04-03 | 2020-06-05 | 山西科泰航天防务技术股份有限公司 | Multi-target real-time telemetering method and system |
| CN111245471B (en) * | 2020-04-03 | 2024-03-01 | 山西科泰航天防务技术股份有限公司 | Multi-target real-time telemetry method and system |
| CN114499647A (en) * | 2020-07-23 | 2022-05-13 | 中国科学院微小卫星创新研究院 | Planetary detection measurement and control communication system |
| CN114499647B (en) * | 2020-07-23 | 2024-01-26 | 中国科学院微小卫星创新研究院 | Planetary detection measurement and control communication system |
| CN113794503A (en) * | 2021-09-03 | 2021-12-14 | 上海卫星工程研究所 | Multi-band multi-channel combined deep space relay forwarding system of surround device |
| CN113794503B (en) * | 2021-09-03 | 2023-08-08 | 上海卫星工程研究所 | Multi-band multi-channel combined deep space relay forwarding system of circulator |
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