CN105897353A - Integrated test device - Google Patents
Integrated test device Download PDFInfo
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- CN105897353A CN105897353A CN201410775297.9A CN201410775297A CN105897353A CN 105897353 A CN105897353 A CN 105897353A CN 201410775297 A CN201410775297 A CN 201410775297A CN 105897353 A CN105897353 A CN 105897353A
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Abstract
The present invention provides an integrated test device. The integrated test device is configured to automatically monitor radiofrequency signals of a communication satellite transponder. The device comprises: a signal generation device configured to give out signal excitation and send the signal excitation to a signal analysis device through the link of the communication satellite transponder; and the signal analysis device configured to receive signals and perform signal analysis through a built-in spectrometer and a power meter. According to the technical scheme, the cable connection is reduced between an apparatus device and a device to reduce the complexity of the test system and greatly improve the reliability; and the automation test software employs a VC++ platform for exploitation, the interface is more friendly, and a frequency tracking function and an integration bandwidth acquisition power signal function are added to realize more accurate power reading and signal supervision at frequency drift, and therefore, the integrated test device is applicable to the signal monitoring test of all the communication satellite dependence test phases, and is generalized to the signal supervision of other radio frequency systems.
Description
Technical field
The invention belongs to technical field of measurement and test, be particularly suited for communication satellite coverage communication module joint-trial stage, Electro Magnetic Compatibility
(Electro Magnetic Compatibility, hereinafter referred to as EMC) test, heat test, the test system of Orbital detection,
Relate to the testing scheme of a kind of communication satellite coverage automated surveillance system, more particularly, to a kind of integration test equipment,
For the radiofrequency signal of communication satellite coverage being carried out the supervision of automatization.
Background technology
In satellite ground test system, the feature of communication satellite coverage is that multi-beam, transponder way are many, turns to examine
Send out the performances such as device radio-frequency power degree of stability, frequency stability, transponder radiofrequency signal need to be monitored and analyze.
Transponder subsystem is the key components of satellite, and communication module stage, heat test stage, Orbital detection stage are examinations
Two important stages of communication satellite coverage subsystem performance indications.Communication module test be transponder subsystem integrated after first
Subsystem is tested, and is the baseline of follow-up transponder subsystem test, by long-time (extremely to communication module stage transponder subsystem
Few 24 hours) plus signal, and the downlink radio-frequency signal degree of stability forwarded through transponder subsystem is monitored, examine transponder
The radio-frequency performance of subsystem.Heat test is the important large-scale experiment of satellite whole star test phase, including heat balance test and thermal vacuum
Test.
Radiofrequency signal monitors the important test event being to examine transponder subsystem performance.Orbital detection purpose is to pass through payload
The confirmatory test of Key Performance Indicator, verifying satellites experience launches, separate, become rail and initial space irradiation in the case of, satellite
Health status.Wherein, EIRP (Effective Isotropic Radiated Power, hereinafter referred to as EIRP)
Long-term stability and frequency long-term stability are the important indicators of reflection Satellite Payloads health status.
During communication satellite coverage subsystem communication module joint-trial, by transponder subsystem input power signal, dividing through transponder
After system channel, monitor RF signal power degree of stability and frequency stability, investigate transponder subsystem radio-frequency performance, be to analyze
Transponder subsystem is with or without one of the important means of design defect.
In the prior art, traditional method is to use multiple stage signal source to produce radiofrequency signal, after communication satellite coverage forwards,
Receiving signal by audiofrequency spectrometer, use the software records test result write based on Agilent VEE platform, test result can only
With the form record of data form, on the one hand huge being unfavorable for of data volume notes abnormalities, and on the other hand the method determines supervision system
System can only control Agilent company associated test devices, it is impossible to controls the test equipment of other producers, owing to can not control cubicle switchboard
Battle array, determines the automaticity of traditional test system and inefficient.Meanwhile, as on star the frequency of transponder own float
Moving, owing to not possessing signal trace function, then test software can not collect the actual signal drifted about, and occurs data acquisition wrong
Phenomenon, brings the risk that test result is invalid by mistake.Test software is owing to can not control automatic stamper and warning function, therefore
Need have tester that test system is carried out supervision on duty in test site, a large amount of manpower need to be expended.
During communication satellite coverage subsystem heat test test, signal monitoring is the important test of examination transponder performance steady in a long-term
Project.Conventional test methodologies is to prepare the signal source equal with transponder subsystem port number, meanwhile, communication satellite effective load
Having how many wave beams, just need to prepare the audiofrequency spectrometer of equal number, cost is high, simultaneously because signal source and audiofrequency spectrometer enormous amount,
Engineering construction difficulty is the biggest.Also due to the signal monitoring software issue of test system, determine test system self automatization's journey
Spend relatively low, the most also need to expend a large amount of manpower.
During Orbital detection, a radio frequency link passage need to be extracted from each wave beam and carry out the supervision of EIRP long-term stability, with
The stability of examination payload radio-frequency performance.As the test system that legacy test system uses with communication module joint-trial, therefore,
The risk faced is the most consistent with problem.
At present, the radiofrequency signal monitoring system hardware device that domestic satellite (DOMSAT) correlation test uses includes multiple stage signal source, frequency spectrum
Instrument and energy meter, the cable connection of these equipment rooms, synthesis, adapter etc. use more, and Terrestrial Radio link constitutes the most multiple
Miscellaneous, reliability is relatively low, and the error causing Terrestrial Radio link to introduce is relatively big, is unfavorable for the analysis of actual signal on star.Meanwhile,
Software is developed based on Agilent VEE, does not has that special parameter configuration window, frequency and power tracking ability be poor, Bu Nengji
Record instrument is from teaching, not possessing automatic printing, it is impossible to control the shortcomings such as Terrestrial Radio passage switching.
Summary of the invention
In order to solve problems of the prior art, the present invention proposes a kind of scheme, to telecommunication satellite multichannel transponder signal
Power and frequency carry out monitoring and recording test result, and radiofrequency signal monitoring system provides signal excitation and signal monitoring and analysis,
Test equipment includes signal generating apparatus, spectrum analysis and power, frequency demarcating equipment, and signal generator provides signal excitation,
Signal, by after communication satellite coverage link, is received signal by audiofrequency spectrometer and energy meter and is carried out signal analysis.
The invention provides a kind of integration test equipment, for the radiofrequency signal of communication satellite coverage being carried out the prison of automatization
Depending on, this equipment includes: signal generation apparatus, is used for providing signal excitation, and is sent to by the link of communication satellite coverage
Signal analysis device；And signal analysis device, for receiving signal by built-in audiofrequency spectrometer and energy meter and carrying out signal
Analyze.
Signal generation apparatus is signal source battle array, and wherein, multiple signal sources that signal source battle array is arranged by manual operation are constituted, thus
Placement signal overdrives.Signal analysis device includes: audiofrequency spectrometer battle array, is made up of multiple audiofrequency spectrometers, for entering the frequency spectrum of signal
Row is analyzed.
Extraly, signal analysis device also includes: energy meter, for the power of signal is analyzed and is demarcated；And frequency
Meter, for being analyzed the frequency of signal and demarcate.
Specifically, signal analysis device is configured with: special monitoring software module, is used for monitoring audiofrequency spectrometer battle array, thus to frequency spectrum
The downstream signal of each frequency that instrument receives gathers one by one, thus draws out curve and carry out implementation record.
Preferably, special monitoring software module is developed based on VC++, and also is used for: the output frequency of control signal and
Power and the switching of Terrestrial Radio switch；To different passages in the same beam of communication satellite coverage, different beams
Signal carries out the supervision of automatization；And various instrument and equipments calibration situation under environmental change is carried out record, thus according to
Time automatic printing set in advance and reporting to the police after signal is beyond the threshold value that pre-sets.
In the present invention, the record of special monitoring software module includes: the signal of each frequency receiving audiofrequency spectrometer carries out reality
Time gather and record；The signal of each frequency is drawn；Pre-set threshold value, thus when more reporting to the police in limited time；And
Acquisition interval is set, and automatically deposits figure and manually deposit figure.
When signal source launches single carrier, the frequency of signal includes: satellite repeater upstream frequency and satellite repeater downlink frequency
Rate, and the reading that the power of signal is the descending power that energy meter reads.
Therefore, compare traditional radiofrequency signal monitoring system, The present invention reduces instrument and equipment, decrease simultaneously instrument and equipment it
Between cable connect, make test system complexity reduce, reliability is greatly enhanced, automatic test software employing VC++
Platform development, interface is more friendly, with the addition of frequency-tracking function simultaneously, and integration bandwidth gathers power signal function, it is achieved that
Power reads more accurately, signal monitoring during frequency drift.It addition, the present invention can apply to all telecommunication satellite correlative measurement
The signal monitoring test in examination stage, can also be generalized to other radio systems such as radar system simultaneously and verify the signal prison of test for a long time
Depending on.
Accompanying drawing explanation
Fig. 1 is the structural representation of the communication satellite coverage automated surveillance system involved by embodiment of the present invention；
Fig. 2 is that the system shown in Fig. 1 performs signal monitoring and the schematic block diagram of test process；
Fig. 3 is the schematic diagram of the signal monitoring method involved by embodiment of the present invention；And
Fig. 4 is the map data that the special monitoring software involved by embodiment of the present invention is drawn out.
Detailed description of the invention
It will be appreciated that in order to overcome existing telecommunication satellite radiofrequency signal monitoring system hardware device use numerous and diverse, reliability is low, soft
The shortcomings such as part function and poor-performing, the present invention proposes a kind of one that signal generation and signal analysis are integrated in an equipment
Change test equipment.Wherein, automatic test software is developed based on VC++, control the signal output frequency of test equipment and power,
Terrestrial Radio switch switching etc., it is achieved to the different passages in communication satellite coverage same beam, different beams signal automatic
Changing and monitor, and instrument calibration situation under environmental change is carried out record, time automatic printing and signal according to setting exceed
Set the function such as warning after limit.
The present invention can be generalized to all of telecommunication satellite radiofrequency signal and monitors test, it is possible to apply to relevant the penetrating of other field
Frequently signal monitoring and analysis.
The present invention is described in detail for 1-4 and detailed description of the invention below in conjunction with the accompanying drawings.
Connect as it is shown in figure 1, signal monitoring need to travel through all radio frequencies, check change in gain during its cooling that heats up.Determining heat
During the test configurations of vacuum stages every day, small-signal watch circle need to be coordinated the most in advance with overall, be determined out by small-signal watch circle
Machine row side determines test configurations on the same day.Get out the watch circle of colour, the test configurations of every day and total testing time every day in advance
Inventory.
Fig. 2 gives a small-signal and monitors the example of path figure on star.As in figure 2 it is shown, integrated testing principle is: due to
Earth station's link of Orbital detection is the longest, and performance is affected by environment very big, and the performance difference under different temperatures environment is to test knot
The impact of fruit be can not ignore, and therefore, communication satellite effective load Orbital detection should use signal monitoring method, i.e. has essence each
The test event that degree requires carries out signal monitoring to ground uplink downlink before performing.
It follows that the testing procedure involved by integration test equipment will be described in detail.
First, mode as shown in Figure 2 comes connecting test instrument and equipment.
Wherein, single carrier is launched in upward signal source, and frequency is satellite repeater upstream frequency, and downstream frequency is under satellite repeater
Line frequency, reads descending power meter reading.
As it is shown on figure 3, need signal source battle array and audiofrequency spectrometer battle array during signal monitoring, overdrive for anti-stop signal, the setting of signal source
The most still by manual operation；Audiofrequency spectrometer monitors then by special monitoring software, each frequency downstream signal that audiofrequency spectrometer is received by
Individual collection, draws curve real time record.
Monitoring software can record:
(1) signal of each frequency receiving audiofrequency spectrometer carries out Real-time Collection record；
(2) each frequency signal is drawn (as shown in Figure 4)；
(3) threshold value, off-limit alarm can be set；
(4) acquisition interval can be set, and have and automatically deposit figure, manually deposit figure function.
In sum, using technical scheme, the cable having lacked instrument and equipment and equipment room connects, and makes test system multiple
Miscellaneous degree reduces, and reliability is greatly enhanced, and automatic test software uses VC++ platform development, and interface is more friendly,
With the addition of frequency-tracking function, integration bandwidth gathers power signal function simultaneously, it is achieved that power reads more accurately, and frequency is floated
Signal monitoring during shifting, such that it is able to apply to the signal monitoring test in all telecommunication satellite dependence test stages, simultaneously can also
It is generalized to the signal monitoring of other radio systems.
Undeclared in the present invention partly belong to techniques known.
Claims (10)
1. an integration test equipment, for the radiofrequency signal of communication satellite coverage carries out the supervision of automatization, it is special
Levy and be, including:
Signal generation apparatus, is used for providing signal excitation, and is sent to signal by the link of described communication satellite coverage and divides
Analysis apparatus；And
Described signal analysis device, for receiving described signal by built-in audiofrequency spectrometer and energy meter and carrying out signal and divide
Analysis.
Integration test equipment the most according to claim 1, it is characterised in that described signal generation apparatus is signal source
Battle array,
Wherein, multiple signal sources that described signal source battle array is arranged by manual operation are constituted, thus place described signal and overdrive.
Integration test equipment the most according to claim 2, it is characterised in that described signal analysis device includes:
Audiofrequency spectrometer battle array, is made up of multiple described audiofrequency spectrometers, for being analyzed the frequency spectrum of described signal.
Integration test equipment the most according to claim 3, it is characterised in that described signal analysis device also includes:
Described energy meter, for being analyzed the power of described signal and demarcate；And
Cymometer, for being analyzed the frequency of described signal and demarcate.
Integration test equipment the most according to claim 3, it is characterised in that be configured with on described signal analysis device:
Special monitoring software module, is used for monitoring described audiofrequency spectrometer battle array, thus to each frequency that described audiofrequency spectrometer receives
Downstream signal gathers one by one, thus draws out curve and carry out implementation record.
Integration test equipment the most according to claim 5, it is characterised in that described special monitoring software module is base
In VC++ exploitation, and also it is used for controlling the output frequency of described signal and power and the switching of Terrestrial Radio switch.
Integration test equipment the most according to claim 6, it is characterised in that described special monitoring software module is also used
In:
Signal to the different passages in the same beam of described communication satellite coverage, different beams carries out the prison of automatization
Depending on；And
Various instrument and equipments calibration situation under environmental change is carried out record, thus automatic according to the time set in advance
Print and report to the police after described signal is beyond the threshold value pre-set.
Integration test equipment the most according to claim 5, it is characterised in that the note of described special monitoring software module
Record includes:
The signal of each frequency that described audiofrequency spectrometer receives is carried out Real-time Collection and record；
The signal of each frequency described is drawn；
Pre-set threshold value, thus when more reporting to the police in limited time；And
Acquisition interval is set, and automatically deposits figure and manually deposit figure.
Integration test equipment the most according to claim 4, it is characterised in that when described signal source launches single carrier,
The frequency of described signal includes: satellite repeater upstream frequency and satellite repeater downstream frequency.
Integration test equipment the most according to claim 4, it is characterised in that when described signal source launches single carrier
Time, the power of described signal is the reading of the descending power that described energy meter reads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775297.9A CN105897353A (en) | 2014-12-15 | 2014-12-15 | Integrated test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775297.9A CN105897353A (en) | 2014-12-15 | 2014-12-15 | Integrated test device |
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ID=56699942
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990417A (en) * | 2017-03-08 | 2017-07-28 | 中国空间技术研究院 | A kind of satellite repeater test system calibration method |
| CN112557752A (en) * | 2020-12-06 | 2021-03-26 | 苏州大学 | Electromagnetic signal monitoring system and computer storage medium |
| CN113438040A (en) * | 2021-06-18 | 2021-09-24 | 深圳松诺技术有限公司 | Single carrier radio frequency performance test method, device and computer readable storage medium |
| CN114389731A (en) * | 2022-01-19 | 2022-04-22 | 中国人民解放军32039部队 | Automatic on-orbit testing system and method for communication satellite |
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| CN201918998U (en) * | 2010-09-29 | 2011-08-03 | 中国科学院国家天文台 | System for monitoring lunar satellite receiving signal in real time |
| CN102724005A (en) * | 2012-06-18 | 2012-10-10 | 上海卫星工程研究所 | Ground automatic testing instrument device with satellite relay trace function and testing method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1625078A (en) * | 2000-07-26 | 2005-06-08 | 艾利森公司 | Mobile satellite communications system using multiple earth stations |
| CN1640017A (en) * | 2000-09-28 | 2005-07-13 | 波音公司 | Return link design for PSD limited mobile satellite communication systems |
| CN1633088A (en) * | 2005-01-14 | 2005-06-29 | 杜百川 | A method, apparatus, and system for code stream comparison of digital signal transmission |
| CN201918998U (en) * | 2010-09-29 | 2011-08-03 | 中国科学院国家天文台 | System for monitoring lunar satellite receiving signal in real time |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990417A (en) * | 2017-03-08 | 2017-07-28 | 中国空间技术研究院 | A kind of satellite repeater test system calibration method |
| CN106990417B (en) * | 2017-03-08 | 2019-06-18 | 中国空间技术研究院 | A kind of satellite repeater test macro calibration method |
| CN112557752A (en) * | 2020-12-06 | 2021-03-26 | 苏州大学 | Electromagnetic signal monitoring system and computer storage medium |
| CN113438040A (en) * | 2021-06-18 | 2021-09-24 | 深圳松诺技术有限公司 | Single carrier radio frequency performance test method, device and computer readable storage medium |
| CN113438040B (en) * | 2021-06-18 | 2022-10-11 | 深圳松诺技术有限公司 | Single carrier radio frequency performance test method, device and computer readable storage medium |
| CN114389731A (en) * | 2022-01-19 | 2022-04-22 | 中国人民解放军32039部队 | Automatic on-orbit testing system and method for communication satellite |
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