CN106533589A - Universal satellite data transmission testing system and method - Google Patents
Universal satellite data transmission testing system and method Download PDFInfo
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- CN106533589A CN106533589A CN201611055963.7A CN201611055963A CN106533589A CN 106533589 A CN106533589 A CN 106533589A CN 201611055963 A CN201611055963 A CN 201611055963A CN 106533589 A CN106533589 A CN 106533589A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
-
- 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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
-
- 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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention provides a universal satellite data transmission testing system and method. The universal satellite data transmission testing system comprises an interface module used for providing a radio frequency signal flowing-in interface and a radio frequency signal flowing-out interface for the universal satellite data transmission testing system, a link selection attenuation adjusting module used for carrying out frequency conversion for radio frequency signals and carrying out attenuation adjustment for the power of the radio frequency signals, a frequency conversion gain adjusting module used for receiving the radio frequency signals transmitted by the link selection attenuation adjusting module and carrying out amplification processing, frequency-mixing processing and filtering processing for the radio frequency signals to realize spectrum migration and signal-to-noise adjustment of the radio frequency signals, a demodulation baseband module used for receiving and demodulating intermediate frequency signals and a network communication module used for processing network exchange data intensively. According to the universal satellite data transmission testing system and method, a standard system of a satellite comprehensive testing system is set up, the difficulty of too diversified consistence of technical states in comprehensive testing system design is solved, and a rapid response capability for a testing requirement is achieved.
Description
Technical field
The present invention relates to satellite data transmission field tests, in particular it relates to a kind of Utility Satellite number passes test system and method.
Background technology
In space communication system, data transmission subsystem is responsible for satellite load data and the high speed over the ground of responsible data is passed
It is defeated, including compression of images, formatting etc., surveyed with ground by X frequency ranges and communicated, the main tracking relaying of relaying subsystem
The data that observing and controlling, data transmission subsystem are sent are modulated, send repeater satellite to after frequency conversion (Ka) and power amplification by type.Number
Pass, subsystem relayed as satellite data transmission passage and Spatial data chains paths, all obtain in each spacefaring nation in the world
Greatly develop.
At present, the country is for several crossings are in starting to walk after the method for testing and systematic difference of subsystem and develop rank
Section, ground test have problems urgent need to resolve, and such as noise introduces the area in radio-frequency head and intermediate frequency end to test result
Not, and for example unified test system is not set up, due to the difference system between test equipment, the change of connection status during index test
Change is inevitably introduced the systematic error that cannot be eliminated, while not possessing repeatability.With sending out for China's aerospace industry
Exhibition, the unification of method of testing, test system hardware and software platform increasingly, can the demand that is deployed between each model of rapid and convenient it is increasingly strong
Strong, the present invention is exactly a kind of measuring technology and system in order to solve the above problems.Currently without the similar correlation technique of discovery
Illustrate or report, also not yet collect data similar both at home and abroad.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of Utility Satellite number passes test system and side
Method, it establishes the standards system of satellite comprehensive testing system, solve state of the art uniformity in integrated test system design
An excessively various difficult problem, possesses the capability of fast response to testing requirement.
According to an aspect of the present invention, there is provided a kind of Utility Satellite number passes test system, it is characterised in which includes：
Interface module, is connected with satellite to be measured, is connect for providing radiofrequency signal inflow for Utility Satellite number biography test system
Mouth and radiofrequency signal flow out interface；
Link selection Attenuation adjustable module, is connected by high frequency cable and network interface with the interface module, for right
Radiofrequency signal carries out frequency conversion and the power to radiofrequency signal and carries out Attenuation adjustable so that radiofrequency signal and biography signalling channel institute down
Need signal is corresponding and level value of the power of radiofrequency signal in being passed needed for signalling channel down；
Conversion gain adjustment module, passes through high frequency cable and network interface phase with the link selection Attenuation adjustable module
Even, the radiofrequency signal of Attenuation adjustable module transfer is selected for receives link, and by the enhanced processing to radiofrequency signal, mixing
Process, filtering process realizes that the frequency spectrum migration to radiofrequency signal and signal to noise ratio are adjusted；
Baseband demodulation module, is connected by high frequency cable and network interface with the conversion gain adjustment module, for connecing
Receive and demodulate intermediate-freuqncy signal；
Network communication module, with the link selection Attenuation adjustable module, conversion gain adjustment module, baseband demodulation module
All pass through high frequency cable to be connected with network interface, for focusing on network exchange data；
Spectrum monitoring module, with the link selection Attenuation adjustable module, conversion gain adjustment module, baseband demodulation mould
Block, network communication module all pass through high frequency cable and are connected with network interface, to be measured defend for real-time monitoring spectral characteristic and measuring
The RF index of star；
Intensive device, for providing power interface and playing the function of cooling circulation.
Preferably, the interface module is designed using Anti-misplug, there is provided standard interface.
Preferably, the network communication module is also connected with data processing rear end, supports Ethernet interface and optical fiber interface.
The present invention also provides a kind of Utility Satellite number and passes method of testing, it is characterised in which comprises the following steps：
Step one, detects state, the star ground connection status of satellite to be measured；
Step 2, selects corresponding interface in interface module according to the biography signal characteristic down of satellite to be measured；
Step 3, passes through switch in link selection Attenuation adjustable module according to the destination for passing down signal of satellite to be measured
Matrix, power splitter, combiner carry out toggle path so that signal is transmitted to destination；
Step 4, according to the size of power on star, by the regulation to the attenuator in link selection Attenuation adjustable module
Signal is made to reach the power level value that Utility Satellite number passes test system, while the real-time monitoring signal in spectrum monitoring module
Spectral characteristic；
Step 5, according to the corresponding conversion gain adjustment module of signal Frequency Band Selection so that signal frequency range is in conversion gain
Within the working range of adjustment module；
Step 6, according to frequency variation signal performance number adjust gain scope；
By meeting after frequency conversion, step 7, requires that the intermediate-freuqncy signal of performance number is transmitted to baseband demodulation module, complete pair signals
Demodulation；
Step 8, the signal for completing to demodulate is sent to data processing rear end by network transmission module, completes test.
Preferably, the gain ranging in the step 6 reaches the signal of baseband demodulation module by measurement from interface module
Performance number draws.
Compared with prior art, the present invention has following beneficial effect：The present invention establishes satellite comprehensive testing system
Standards system, solve integrated test system design in the excessively various difficult problem of state of the art uniformity, possess to test
The capability of fast response of demand.
Description of the drawings
Detailed description non-limiting example made with reference to the following drawings by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation that Utility Satellite number of the present invention passes test system.
Fig. 2 is the step of Utility Satellite number of the present invention passes method of testing flow chart.
Specific 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, some deformations and improvement can also be made.These belong to the present invention
Protection domain.
As shown in figure 1, Utility Satellite number of the present invention passes test system including：
Interface module 101, is connected with satellite to be measured, provides radiofrequency signal inflow for passing test system for Utility Satellite number
Interface and radiofrequency signal flow out interface；
Link selection Attenuation adjustable module 102, is connected by high frequency cable and network interface with the interface module 101,
Power for frequency conversion is carried out to radiofrequency signal and to radiofrequency signal carries out Attenuation adjustable so that radiofrequency signal passes signal with
Signal needed for passage is corresponding and level value of the power of radiofrequency signal in being passed needed for signalling channel down, link selection decay
Adjustment module connects network communication module, is received by local area network bus and is controlled, and link selection Attenuation adjustable module is also connected with frequency
Spectrum monitoring modular, can be monitored to untreated radiofrequency signal in arbitrary period, and high frequency cable and network interface are used for module
Between transmission signal and communication data；
Conversion gain adjustment module 103, is connect by high frequency cable and network with the link selection Attenuation adjustable module 102
Mouthful be connected, select the radiofrequency signal of 102 transmission of Attenuation adjustable module for receives link, and by the amplification to radiofrequency signal at
Reason, Frequency mixing processing, filtering process realize that the frequency spectrum migration to radiofrequency signal and signal to noise ratio are adjusted, the connection of conversion gain adjustment module
Network communication module, is received by local area network bus and is controlled；
Baseband demodulation module 104, is connected by high frequency cable and network interface with the conversion gain adjustment module 103,
For receiving and demodulating intermediate-freuqncy signal, baseband demodulation module carries out code synchronization, frame synchronization, beats after markers to the data flow after demodulation
Network communication module extremely is sent, is received by LAN and is controlled；
Network communication module 105, with the link selection Attenuation adjustable module 102, conversion gain adjustment module 103, solution
Adjust baseband module 104 all to pass through high frequency cable to be connected with network interface, for focusing on network exchange data；
Spectrum monitoring module 106, with the link selection Attenuation adjustable module 102, conversion gain adjustment module 103, solution
Baseband module 104, network communication module 105 is adjusted all to pass through high frequency cable and be connected with network interface, it is special for real-time monitoring frequency spectrum
Property and measurement satellite to be measured RF index, the simply transformation of spectrum monitoring module adaptive simultaneously carried out to the signal that each node is introduced
Monitoring；
Intensive device 107, for providing power interface and playing the function of cooling circulation, intensive device is using shockproof
Dynamic design, integrated, fixed modules, intensive device may move, and so be easy to test system to dispose.
The interface module 101 is designed using Anti-misplug, there is provided standard interface, so facilitates data exchange.
The network communication module 105 is also connected with data processing rear end, supports Ethernet interface and optical fiber interface, so
It is applied widely.
As shown in Fig. 2 Utility Satellite number of the present invention passes method of testing comprising the following steps：
Step one, detects state, the star ground connection status of satellite to be measured；
Step 2, selects corresponding interface in interface module according to the biography signal characteristic down of satellite to be measured；
Step 3, passes through switch in link selection Attenuation adjustable module according to the destination for passing down signal of satellite to be measured
Matrix, power splitter, combiner carry out toggle path so that signal is transmitted to destination；
Step 4, according to the size of power on star, by the regulation to the attenuator in link selection Attenuation adjustable module
Signal is made to reach the power level value that Utility Satellite number passes test system, while the real-time monitoring signal in spectrum monitoring module
Spectral characteristic；
Step 5, according to the corresponding conversion gain adjustment module of signal Frequency Band Selection so that signal frequency range is in conversion gain
Within the working range of adjustment module；
Step 6, according to frequency variation signal performance number adjust gain scope；
By meeting after frequency conversion, step 7, requires that the intermediate-freuqncy signal of performance number is transmitted to baseband demodulation module, complete pair signals
Demodulation, baseband demodulation module receiving intermediate frequency signal simultaneously carries out to the data flow after demodulation that code is synchronous, Viterbi (Viterbi) solutions
Code, RS (inner institute's code) decoding, LDPC (low density parity check code) decoding, frame synchronization, play the operation such as markers after send to corresponding
The network port complete next stage process；
Step 8, the signal for completing to demodulate is sent to data processing rear end by network transmission module, completes test.
Gain ranging in the step 6 reaches the signal power value of baseband demodulation module by measurement from interface module
Draw, detailed process is as follows：After satellite data transmission test system builds solidification, baseband demodulation is reached from interface module by measurement
The signal power of module is worth Utility Satellite number to pass adjustable range of the test system to signal power, before setting is not changed
The fixed gain for obtaining that Utility Satellite number passes test system is put, Utility Satellite number passes test after demarcating the linearity of attenuator
The gain-adjusted scope of system can pictorialization, be so easy to inquiry.
In sum, the present invention establishes the standards system of satellite comprehensive testing system, solves integrated test system and sets
The excessively various difficult problem of state of the art uniformity in meter, possesses the capability of fast response to testing requirement, test system index
Can be recorded by the form of pictorialization, it is adaptable to the reperformance test of index between different model, solve many of satellite test
Need repeatedly to change radio frequency link and change the difficult point that link needs to re-scale every time under business pattern, while providing by net
The thought of network control, realizes remotely control, especially adapts to the radio-activity testing such as magnetic tester place.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (5)
1. a kind of Utility Satellite number passes test system, it is characterised in which includes：
Interface module, is connected with satellite to be measured, for for Utility Satellite number pass test system provides radiofrequency signal flow into interface with
Radiofrequency signal flows out interface；
Link selection Attenuation adjustable module, is connected by high frequency cable and network interface with the interface module, for radio frequency
Signal carries out frequency conversion and the power to radiofrequency signal and carries out Attenuation adjustable so that radiofrequency signal with down pass signalling channel needed for
Signal is corresponding and level value of the power of radiofrequency signal in being passed needed for signalling channel down；
Conversion gain adjustment module, is connected by high frequency cable and network interface with the link selection Attenuation adjustable module, is used
In receives link select Attenuation adjustable module transfer radiofrequency signal, and by the enhanced processing to radiofrequency signal, Frequency mixing processing,
Filtering process realizes that the frequency spectrum migration to radiofrequency signal and signal to noise ratio are adjusted；
Baseband demodulation module, is connected by high frequency cable and network interface with the conversion gain adjustment module, for receive and
Demodulation intermediate-freuqncy signal；
Network communication module, is all led to the link selection Attenuation adjustable module, conversion gain adjustment module, baseband demodulation module
Cross high frequency cable to be connected with network interface, for focusing on network exchange data；
Spectrum monitoring module, with the link selection Attenuation adjustable module, conversion gain adjustment module, baseband demodulation module, net
Network communication module all passes through high frequency cable and is connected with network interface, penetrates for real-time monitoring spectral characteristic and measurement satellite to be measured
Frequency index；
Intensive device, for providing power interface and playing the function of cooling circulation.
2. Utility Satellite number according to claim 1 passes test system, it is characterised in that the interface module adopts anti-plug
Wrong design, there is provided standard interface.
3. Utility Satellite number according to claim 1 passes test system, it is characterised in that the network communication module also with
Data processing rear end is connected, and supports Ethernet interface and optical fiber interface.
4. a kind of Utility Satellite number passes method of testing, it is characterised in which comprises the following steps：
Step one, detects state, the star ground connection status of satellite to be measured；
Step 2, selects corresponding interface in interface module according to the biography signal characteristic down of satellite to be measured；
Step 3, passes through cubicle switchboard in link selection Attenuation adjustable module according to the destination for passing down signal of satellite to be measured
Battle array, power splitter, combiner carry out toggle path so that signal is transmitted to destination；
Step 4, according to the size of power on star, makes letter by the regulation to the attenuator in link selection Attenuation adjustable module
Number reach the power level value that Utility Satellite number passes test system, at the same in spectrum monitoring module real-time monitoring signal frequency spectrum
Characteristic；
Step 5, according to the corresponding conversion gain adjustment module of signal Frequency Band Selection so that signal frequency range is adjusted in conversion gain
Within the working range of module；
Step 6, according to frequency variation signal performance number adjust gain scope；
By meeting after frequency conversion, step 7, requires that the intermediate-freuqncy signal of performance number is transmitted to baseband demodulation module, the solution of complete pair signals
Adjust；
Step 8, the signal for completing to demodulate is sent to data processing rear end by network transmission module, completes test.
5. Utility Satellite number according to claim 4 passes method of testing, it is characterised in that the gain model in the step 6
Enclosing is worth from the signal power that interface module reaches baseband demodulation module by measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055963.7A CN106533589A (en) | 2016-11-21 | 2016-11-21 | Universal satellite data transmission testing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055963.7A CN106533589A (en) | 2016-11-21 | 2016-11-21 | Universal satellite data transmission testing system and method |
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| CN106533589A true CN106533589A (en) | 2017-03-22 |
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| CN201611055963.7A Pending CN106533589A (en) | 2016-11-21 | 2016-11-21 | Universal satellite data transmission testing system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150331A (en) * | 2018-06-15 | 2019-01-04 | 上海卫星工程研究所 | A kind of satellite majority biography parallel automatization test system of channel index |
| CN114422043A (en) * | 2022-03-28 | 2022-04-29 | 成都嘉纳海威科技有限责任公司 | Reliability test device and method |
| CN114665946A (en) * | 2021-12-29 | 2022-06-24 | 北京空间飞行器总体设计部 | Satellite measurement and control test channel integrity rapid self-checking evaluation system and method |
| CN115946740A (en) * | 2023-03-13 | 2023-04-11 | 广汉科峰电子有限责任公司 | Integrated train monitoring and identifying system |
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| CN105099537A (en) * | 2014-05-08 | 2015-11-25 | 中国科学院空间科学与应用研究中心 | Digital transmission sender used for satellite |
| CN105306156A (en) * | 2015-11-11 | 2016-02-03 | 上海卫星工程研究所 | Remote sensing satellite data transmission product automatic testing system and method |
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Patent Citations (4)
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| CN201557116U (en) * | 2009-11-30 | 2010-08-18 | 航天东方红卫星有限公司 | Testing equipment integrated system for satellite data transmission subsystem |
| US20130135985A1 (en) * | 2011-11-30 | 2013-05-30 | Broadcom Corporation | Split Microwave Backhaul Architecture with Smart Outdoor Unit |
| CN105099537A (en) * | 2014-05-08 | 2015-11-25 | 中国科学院空间科学与应用研究中心 | Digital transmission sender used for satellite |
| CN105306156A (en) * | 2015-11-11 | 2016-02-03 | 上海卫星工程研究所 | Remote sensing satellite data transmission product automatic testing system and method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150331A (en) * | 2018-06-15 | 2019-01-04 | 上海卫星工程研究所 | A kind of satellite majority biography parallel automatization test system of channel index |
| CN114665946A (en) * | 2021-12-29 | 2022-06-24 | 北京空间飞行器总体设计部 | Satellite measurement and control test channel integrity rapid self-checking evaluation system and method |
| CN114665946B (en) * | 2021-12-29 | 2023-11-07 | 北京空间飞行器总体设计部 | System and method for rapidly self-checking and evaluating integrity of satellite measurement and control test channel |
| CN114422043A (en) * | 2022-03-28 | 2022-04-29 | 成都嘉纳海威科技有限责任公司 | Reliability test device and method |
| CN115946740A (en) * | 2023-03-13 | 2023-04-11 | 广汉科峰电子有限责任公司 | Integrated train monitoring and identifying system |
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