CN107426016A - The highly reliable ground TTC channel design method of satellite launch area electrical testing - Google Patents
The highly reliable ground TTC channel design method of satellite launch area electrical testing Download PDFInfo
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- CN107426016A CN107426016A CN201710419043.7A CN201710419043A CN107426016A CN 107426016 A CN107426016 A CN 107426016A CN 201710419043 A CN201710419043 A CN 201710419043A CN 107426016 A CN107426016 A CN 107426016A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
Abstract
The invention provides a kind of highly reliable ground TTC channel design method of satellite launch area electrical testing, it comprises the following steps：Step 1, two secondary ground observing and controlling antennas are set up in pylon fixed platform, up-downgoing branch is carried out by multiple circulators, two secondary ground observing and controlling antennas are respectively connecting to main part interface and backup interface of base RF optical fiber repeater systems, when the ground plane TT＆C antenna of main part interface is blocked or unstable, base personnel is directly switched to Backup Antenna etc. by the switch matrix of an optical fiber repeater system.The present invention can make full use of existing equipments resources, and redundancy backup design is carried out to ground TTC channel, reduce failure as far as possible and solve the time.
Description
Technical field
The present invention relates to a kind of link design method, in particular it relates to a kind of satellite launch area highly reliable ground of electrical testing
TTC channel design method.
Background technology
Satellite has higher requirement in launching site launch site electrical testing, for ground telemetering distant control chain circuit reliability,
Particularly face after transmitting advances into transmitting flow, once remote measuring and controlling link occurs abnormal, may result in postponement transmitting.
At present, conventional ground observing and controlling link scheme when factory building is tested, due to needing full link test, therefore alternate device
Or passage is limited, cause some single-points on link be present, such as：Measurement and control center's management equipment is the pass of remote-control romote-sensing data mart modeling
Button apparatus, it is general use cold standby scheme, only have in test system one it is in running order, once go wrong, it is necessary to tear open
Lower main alternate device simultaneously changes alternate device, and whole star measurement monitoring can not be carried out during replacing, can not send telecommand to satellite.
However, into launch site behind launching site, is particularly transferred to, general TTC channel only needs to ensure definitely reliable all the way, radio frequency link
Or equipment has that unnecessary passage is available, therefore to improve the reliability of ground observing and controlling link, resource is made full use of to link
Carry out re-optimization and be designed to inevitable requirement.
The content of the invention
For in the prior art the defects of, the technical problem to be solved in the present invention is to provide a kind of satellite launch area electrical testing
Highly reliable ground TTC channel design method, it can make full use of existing equipments resources, and redundancy is carried out to ground TTC channel
Hot Spare designs, and reduces failure as far as possible and solves the time.
According to an aspect of the present invention, there is provided a kind of highly reliable ground TTC channel design side of satellite launch area electrical testing
Method, the highly reliable ground TTC channel design method of satellite launch area electrical testing comprise the following steps：
Step 1, two secondary ground observing and controlling antennas are set up in pylon fixed platform, pass through multiple circulators and carry out up-downgoing
Branch, two secondary ground observing and controlling antennas are respectively connecting to main part interface and backup interface of base RF optical fiber repeater system (front end),
When the ground plane TT＆C antenna of main part interface is blocked or unstable, base personnel's directly opening by optical fiber repeater system
Backup Antenna can be switched to by closing matrix；
Step 2, descending in base RF optical fiber repeater system (rear end) will be descending distant by a power splitter by outlet
Survey signal and carry out branch, power splitter is respectively connecting to two independent down going channels of a radio frequency link control cabinet, passes through independence
Down going channel a frequency converter, an observing and controlling baseband equipment and measurement and control center's management equipment, form two-way independence
Telemetering channel；
Step 3, data feedback channel are set after being simultaneously emitted by by Liang Tai measurement and control centers management equipment by independent observing and controlling base band
A combiner is accessed after the independent path of standby, data feedback channel frequency converter and radio frequency road control cabinet, passes through the change of data feedback channel
The output switch of frequency device is controlled, formed two-way can component selections output independent remote-control channel；
Step 4, it is descending that the telemetry demodulation software merit ratings of two observing and controlling baseband equipments corresponds to two-way remote measurement on star respectively, from
And two-way remote measurement can independently be shown by ensureing remote measurement display terminal；
Step 5, the remote control modulation software merit ratings of two observing and controlling baseband equipments correspond to it is up with being remotely controlled all the way on star, so as to
Ensure the full link backup of telecommand, can wherein remote signal be broadcast TV programs by satellite all the way by the selection of the frequency converter of data feedback channel；
Step 6, a comprehensive server of surveying use cold standby scheme, when main part failure, then started backup, measurement and control center
Management equipment possesses the comprehensive function of surveying server of Auto-reconnect.
Preferably, electrical testing highly reliable ground TTC channel design method in the satellite launch area is for ground observing and controlling link
In in single-point state equipment carry out it is cold and hot backup deployment, the highly reliable ground TTC channel design side of satellite launch area electrical testing
Method enters line link distribution using power splitter and combiner, is changed by appropriate software merit rating, realizes ground observing and controlling link
Highly reliable design, it is ensured that any equipment fault can fast quick-recovery on link.
Preferably, the step 3 Zhong Liangtai measurement and control centers management equipment is serviced using measurement and control center's management equipment and comprehensive survey
LAN mouth TCP and IP communication mechanisms between device, Liang Tai measurement and control centers management equipment use completely the same user name, password, set
Standby number is waited the comprehensive survey server of login, is referred to so as to ensure that Liang Tai measurement and control centers management equipment can receive comprehensive survey server remote control
Order, comprehensive survey server can also receive the telemetry that Liang Tai measurement and control centers tube apparatus is sent；Liang Tai measurement and control centers management equipment
Utilize LAN mouth TCP and the IP communication mechanisms between measurement and control center's management equipment and observing and controlling encryption and decryption equipment, Liang Tai measurement and control centers pipe
Manage equipment and observing and controlling encryption and decryption equipment is logged in using completely the same user name, password, device number etc., so as to ensure in two observing and controlling
Heart management equipment can be remotely controlled encryption and remote measurement decryption by observing and controlling encryption and decryption equipment.
Preferably, during the comprehensive survey server fail, it is only necessary to comprehensive survey server start will be backed up, relevant device can be certainly
The dynamic comprehensive survey server of reconnection, can quick-recovery up-downgoing data link soon.
Preferably, measurement and control center's management equipment and observing and controlling baseband equipment correspond, and pass through observing and controlling baseband equipment
Modulation and demodulation channel parameters configure, the passage configuration of corresponding measurement and control center management equipment, can be independent with telemetering channel by remote control
Separate, realize the selection of remote-control channel, avoid the aliasing of telemetry parameter.
Preferably, the data feedback channel is in order to avoid interference, while only opens the output of the frequency converter of a data feedback channel
Switch, guarantee is simultaneously only up all the way to broadcast TV programs by satellite, and current remote-control channel is problematic, it is only necessary to sends another frequency converter output switch
Go code and can switch to backup link.
Preferably, when the RF optical fiber repeater systems failure in the base needs to cut standby, it is only necessary to rear end by data feedback channel and
Two radio-frequency cables of down going channel are connected to the backup interface of optical fiber forwarding unit, and front end has connected active and standby two sets of days
Line, without action.
Compared with prior art, the present invention has following beneficial effect：The present invention can directly apply to all at present
Model satellite electrical testing task, it is significant for raising test system reliability, reduction failure solution time.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Electrical testing highly reliable ground TTC channel design method in satellite launch area of the present invention comprises the following steps：
Step 1, two secondary ground observing and controlling antennas are set up in pylon fixed platform, pass through multiple circulators and carry out up-downgoing
Branch, two secondary ground observing and controlling antennas are respectively connecting to main part interface and backup interface of base RF optical fiber repeater system (front end),
When the ground plane TT＆C antenna of main part interface is blocked or unstable, base personnel's directly opening by optical fiber repeater system
Backup Antenna can be switched to by closing matrix；
Step 2, in base, the descending of RF (Radio Frequency, radio frequency) optical fiber repeater systems (rear end) passes through outlet
Downlink telemetry signal is carried out by branch by a power splitter, power splitter is respectively connecting to a radio frequency link control cabinet two solely
Vertical down going channel, managed by a frequency converter of independent down going channel, an observing and controlling baseband equipment and a measurement and control center
Equipment is managed, forms the telemetering channel of two-way independence；
Step 3, data feedback channel are set after being simultaneously emitted by by Liang Tai measurement and control centers management equipment by independent observing and controlling base band
A combiner is accessed after the independent path of standby, data feedback channel frequency converter and radio frequency road control cabinet, passes through the change of data feedback channel
The output switch of frequency device is controlled, formed two-way can component selections output independent remote-control channel；
Step 4, it is descending that the telemetry demodulation software merit ratings of two observing and controlling baseband equipments corresponds to two-way remote measurement on star respectively, from
And two-way remote measurement can independently be shown by ensureing remote measurement display terminal；
Step 5, the remote control modulation software merit ratings of two observing and controlling baseband equipments correspond to it is up with being remotely controlled all the way on star, so as to
Ensure the full link backup of telecommand, can wherein remote signal be broadcast TV programs by satellite all the way by the selection of the frequency converter of data feedback channel；
Step 6, a comprehensive server of surveying use cold standby scheme, when main part failure, then started backup, measurement and control center
Management equipment possesses the comprehensive function of surveying server of Auto-reconnect.
Electrical testing highly reliable ground TTC channel design method in the satellite launch area in ground observing and controlling link for being in
The equipment of single-point state carries out cold and hot backup deployment, and electrical testing highly reliable ground TTC channel design method in satellite launch area uses
Power splitter and combiner enter line link distribution, are changed by appropriate software merit rating, realize the highly reliable of ground observing and controlling link
Design, it is ensured that any equipment fault can fast quick-recovery on link.
The step 3 Zhong Liangtai measurement and control centers management equipment is using between measurement and control center's management equipment and comprehensive survey server
LAN (Local Area Network, LAN) mouth TCP (Transmission Control Protocol, transmission control
Agreement) and IP (Internet Protocol, the agreement interconnected between network) communication mechanism, Liang Tai measurement and control centers management equipment
Comprehensive survey server is logged in using completely the same user name, password, device number etc., so as to ensure Liang Tai measurement and control centers management equipment
Comprehensive survey server telecommand can be received, comprehensive survey server can also receive the remote measurement that Liang Tai measurement and control centers tube apparatus is sent
Data；Liang Tai measurement and control centers management equipment using between measurement and control center's management equipment and observing and controlling encryption and decryption equipment LAN mouths TCP and
IP communication mechanisms, Liang Tai measurement and control centers management equipment log in observing and controlling using completely the same user name, password, device number etc. and add solution
Close equipment, so as to ensure that Liang Tai measurement and control centers management equipment can be remotely controlled encryption and remote measurement solution by observing and controlling encryption and decryption equipment
It is close.
During the comprehensive survey server fail, it is only necessary to comprehensive survey server start will be backed up, relevant device can Auto-reconnect
Comprehensive survey server, can quick-recovery up-downgoing data link soon.
Measurement and control center's management equipment and observing and controlling baseband equipment correspond, and are conciliate by the modulation of observing and controlling baseband equipment
Channel parameters configuration is adjusted, the passage configuration of corresponding measurement and control center management equipment, remote control can independently be separated with telemetering channel, realized
The selection of remote-control channel, avoid the aliasing of telemetry parameter.
The data feedback channel only opens the output switch of the frequency converter of a data feedback channel in order to avoid interference, protects
Card is simultaneously only up all the way to broadcast TV programs by satellite, and current remote-control channel is problematic, it is only necessary to sends another frequency converter output switch connection and refers to
Order can switch to backup link.
When the RF optical fiber repeater systems failure in the base needs to cut standby, it is only necessary in rear end by data feedback channel and down going channel
Two radio-frequency cables are connected to the backup interface of optical fiber forwarding unit, and front end has connected active and standby two sets of antennas, without dynamic
Make.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (7)
- A kind of 1. highly reliable ground TTC channel design method of satellite launch area electrical testing, it is characterised in that satellite launch area electricity Highly reliable ground TTC channel design method is tested to comprise the following steps：Step 1, two secondary ground observing and controlling antennas are set up in pylon fixed platform, carry out up-downgoing branch by multiple circulators, Two secondary ground observing and controlling antennas are respectively connecting to main part interface and backup interface of base RF optical fiber repeater systems, when main part interface Ground plane TT＆C antenna is blocked or unstable, and base personnel is directly switched to standby by the switch matrix of an optical fiber repeater system Part antenna；Step 2, in base, the descending of RF optical fiber repeater systems is carried out downlink telemetry signal by a power splitter by exporting Branch, power splitter are respectively connecting to two independent down going channels of a radio frequency link control cabinet, pass through independent down going channel A frequency converter, an observing and controlling baseband equipment and measurement and control center's management equipment, formed two-way independence telemetering channel；Step 3, data feedback channel be simultaneously emitted by by Liang Tai measurement and control centers management equipment after by independent observing and controlling baseband equipment, on A combiner is accessed after the frequency converter of row of channels and the independent path of radio frequency road control cabinet, passes through the frequency converter of data feedback channel Output switch is controlled, and forms the independent remote-control channel of two-way component selections output；Step 4, it is descending that the telemetry demodulation software merit ratings of two observing and controlling baseband equipments corresponds to two-way remote measurement on star respectively, so as to protect Card remote measurement display terminal independently shows two-way remote measurement；Step 5, the remote control modulation software merit ratings of two observing and controlling baseband equipments correspond to it is up with being remotely controlled all the way on star, so as to ensure The full link backup of telecommand, by the frequency converter selection of data feedback channel, wherein remote signal is broadcast TV programs by satellite all the way；Step 6, a comprehensive server of surveying use cold standby scheme, when main part failure, then started backup, measurement and control center's management Equipment possesses the comprehensive function of surveying server of Auto-reconnect.
- 2. the highly reliable ground TTC channel design method of satellite launch area according to claim 1 electrical testing, its feature exist In electrical testing highly reliable ground TTC channel design method in the satellite launch area is for being in single point-like in ground observing and controlling link The equipment of state carries out cold and hot backup deployment, and electrical testing highly reliable ground TTC channel design method in satellite launch area uses power splitter Enter line link distribution with combiner, changed by appropriate software merit rating, realize the highly reliable design of ground observing and controlling link, really Protect the fast quick-recovery of any equipment fault on link.
- 3. the highly reliable ground TTC channel design method of satellite launch area according to claim 1 electrical testing, its feature exist In the step 3 Zhong Liangtai measurement and control centers management equipment utilizes measurement and control center's management equipment and the comprehensive LAN surveyed between server Mouth TCP and IP communication mechanisms, Liang Tai measurement and control centers management equipment are logged in using completely the same user name, password, device number etc. Comprehensive survey server, so as to ensure that Liang Tai measurement and control centers management equipment receives comprehensive survey server telecommand, comprehensive survey server Also the telemetry that Liang Tai measurement and control centers tube apparatus is sent is received；Liang Tai measurement and control centers management equipment is managed using measurement and control center LAN mouth TCP and IP communication mechanisms between equipment and observing and controlling encryption and decryption equipment, Liang Tai measurement and control centers management equipment use complete one The user name of cause, password, device number etc. log in observing and controlling encryption and decryption equipment, so as to ensure that Liang Tai measurement and control centers management equipment passes through Observing and controlling encryption and decryption equipment is remotely controlled encryption and remote measurement decryption.
- 4. the highly reliable ground TTC channel design method of satellite launch area according to claim 3 electrical testing, its feature exist In, it is described it is comprehensive survey server fail when, it is only necessary to will back up it is comprehensive survey server start, relevant device Auto-reconnect it is comprehensive survey service Device, fast quick-recovery up-downgoing data link.
- 5. the highly reliable ground TTC channel design method of satellite launch area according to claim 1 electrical testing, its feature exist In measurement and control center's management equipment and observing and controlling baseband equipment correspond, and are led to by the modulation and demodulation of observing and controlling baseband equipment Road parameter configuration, the passage configuration of corresponding measurement and control center management equipment, remote control is independently separated with telemetering channel, realizes that remote control is logical The selection in road, avoid the aliasing of telemetry parameter.
- 6. the highly reliable ground TTC channel design method of satellite launch area according to claim 1 electrical testing, its feature exist In the data feedback channel only opens the output switch of the frequency converter of a data feedback channel in order to avoid interference, ensures simultaneously Only up all the way to broadcast TV programs by satellite, current remote-control channel is problematic, it is only necessary to sends another frequency converter output switch and goes code switching To backup link.
- 7. the highly reliable ground TTC channel design method of satellite launch area according to claim 1 electrical testing, its feature exist When the RF optical fiber repeater systems failure in, the base needs to cut standby, it is only necessary in rear end by data feedback channel and down going channel two Radio-frequency cable is connected to the backup interface of optical fiber forwarding unit, and front end has connected active and standby two sets of antennas, without action.
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| CN201710419043.7A CN107426016B (en) | 2017-06-06 | 2017-06-06 | Design method of high-reliability ground measurement and control link for satellite emission area electrical test |
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| CN201710419043.7A CN107426016B (en) | 2017-06-06 | 2017-06-06 | Design method of high-reliability ground measurement and control link for satellite emission area electrical test |
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| CN107426016B CN107426016B (en) | 2020-07-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519751A (en) * | 2018-04-02 | 2018-09-11 | 南京国睿安泰信科技股份有限公司 | A kind of novel solid matrix switching system |
| CN112557787A (en) * | 2020-11-25 | 2021-03-26 | 中国科学院微小卫星创新研究院 | Universal satellite electronics testing system |
| CN113204188A (en) * | 2021-04-26 | 2021-08-03 | 中国人民解放军国防科技大学 | Multimode-driven quick-response satellite switching instruction system and design and application method thereof |
| CN113993003A (en) * | 2021-09-18 | 2022-01-28 | 深圳航天东方红卫星有限公司 | Multi-satellite parallel data forwarding system and method |
| CN114465672A (en) * | 2022-01-14 | 2022-05-10 | 上海卫星工程研究所 | Testing method and system for radio frequency forwarding system of field emission region of Mars detector |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085976A1 (en) * | 2002-11-06 | 2004-05-06 | Mark Dale | Downstream time domian based adaptive modulation for DOCSIS based applications |
| CN101145825A (en) * | 2007-10-30 | 2008-03-19 | 航天东方红卫星有限公司 | Small satellite satellite-ground communication integrated system |
| CN201523380U (en) * | 2009-09-17 | 2010-07-07 | 航天东方红卫星有限公司 | Relay observation and control responder satellite observation and control allocation system with controllable priority levels |
| CN102520715A (en) * | 2011-12-28 | 2012-06-27 | 北京航空航天大学 | Universal satellite ground overall control test system |
| CN106688319B (en) * | 2010-01-12 | 2013-10-23 | 中国航天空气动力技术研究院 | A kind of integrated UAV ground control station |
| CN105162490A (en) * | 2015-07-02 | 2015-12-16 | 华侨大学 | Double-frequency measurement and control transmitting-receiving system |
| 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 |
| CN106100658A (en) * | 2016-07-07 | 2016-11-09 | 上海航天测控通信研究所 | Spaceborne S band Dual Channel observing and controlling receiver |
-
2017
- 2017-06-06 CN CN201710419043.7A patent/CN107426016B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085976A1 (en) * | 2002-11-06 | 2004-05-06 | Mark Dale | Downstream time domian based adaptive modulation for DOCSIS based applications |
| CN101145825A (en) * | 2007-10-30 | 2008-03-19 | 航天东方红卫星有限公司 | Small satellite satellite-ground communication integrated system |
| CN201523380U (en) * | 2009-09-17 | 2010-07-07 | 航天东方红卫星有限公司 | Relay observation and control responder satellite observation and control allocation system with controllable priority levels |
| CN106688319B (en) * | 2010-01-12 | 2013-10-23 | 中国航天空气动力技术研究院 | A kind of integrated UAV ground control station |
| CN102520715A (en) * | 2011-12-28 | 2012-06-27 | 北京航空航天大学 | Universal satellite ground overall control test system |
| CN105162490A (en) * | 2015-07-02 | 2015-12-16 | 华侨大学 | Double-frequency measurement and control transmitting-receiving system |
| 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 |
| CN106100658A (en) * | 2016-07-07 | 2016-11-09 | 上海航天测控通信研究所 | Spaceborne S band Dual Channel observing and controlling receiver |
Non-Patent Citations (1)
| Title |
|---|
| 孙金懿等: "基于CAN总线的卫星电源地面测试系统", 《上海第二工业大学学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519751A (en) * | 2018-04-02 | 2018-09-11 | 南京国睿安泰信科技股份有限公司 | A kind of novel solid matrix switching system |
| CN112557787A (en) * | 2020-11-25 | 2021-03-26 | 中国科学院微小卫星创新研究院 | Universal satellite electronics testing system |
| CN112557787B (en) * | 2020-11-25 | 2023-12-01 | 中国科学院微小卫星创新研究院 | Universal satellite electronics test system |
| CN113204188A (en) * | 2021-04-26 | 2021-08-03 | 中国人民解放军国防科技大学 | Multimode-driven quick-response satellite switching instruction system and design and application method thereof |
| CN113993003A (en) * | 2021-09-18 | 2022-01-28 | 深圳航天东方红卫星有限公司 | Multi-satellite parallel data forwarding system and method |
| CN113993003B (en) * | 2021-09-18 | 2023-12-26 | 深圳航天东方红卫星有限公司 | Multi-satellite parallel data forwarding system and method |
| CN114465672A (en) * | 2022-01-14 | 2022-05-10 | 上海卫星工程研究所 | Testing method and system for radio frequency forwarding system of field emission region of Mars detector |
| CN114465672B (en) * | 2022-01-14 | 2023-12-12 | 上海卫星工程研究所 | Test method and system for radio frequency forwarding system of Mars detector emission field emission area |
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| CN107426016B (en) | 2020-07-14 |
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