CN108011676A - The method for automatic measurement and system of radio frequency link - Google Patents
The method for automatic measurement and system of radio frequency link Download PDFInfo
- Publication number
- CN108011676A CN108011676A CN201711231797.6A CN201711231797A CN108011676A CN 108011676 A CN108011676 A CN 108011676A CN 201711231797 A CN201711231797 A CN 201711231797A CN 108011676 A CN108011676 A CN 108011676A
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- China
- Prior art keywords
- radio frequency
- signal
- frequency link
- link
- automatic measurement
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
-
- 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
Abstract
The present invention provides a kind of method for automatic measurement and system of radio frequency link, and system includes signal source, for sending signal by the frequency point of setting according to interval in control signal；Radio frequency link, for carrying out frequency conversion and power amplification to the signal in radio frequency link；Power meter, for obtaining power signal parameter to signal measurement；Automatic measurement mechanism, for the power signal parameter measured by the parameter of collection signal source transmission signal in real time and power meter, and is calculated the parameter information of radio frequency link；The parameter information of gained radio frequency link is formed into link information database and stores and exports.The present invention can quickly all frequency points of scanning survey, and form standard database, ensure satellite communications services be normally carried out.
Description
Technical field
The invention belongs to satellite communication link fields of measurement, it is related to the method for automatic measurement and system of a kind of radio frequency link.
Background technology
In wideband satellite communication system, satellite channel is wide, and link Hz-KHz is big, to ensure to reach the power of signal on star
Spectrum density is almost consistent, it is necessary to measured to system link, and link parameter result is fed back in baseband system into line link
Parameter compensates so that the inherent interference of satellite system minimizes, and improves the efficiency of system.
A kind of measuring method of radio frequency link is applied to high throughput wideband satellite communication field, is related to a kind of automation radio frequency
Link e measurement technology, broadband satellite radio frequency band is wide, and measurement frequency point is more, and higher to the environment coherence request of measurement, needs
Measurement is quickly finished to ensure its accuracy.Traditional measuring method is signal source+frequency spectrograph manual measurement.By to state
Interior literature search is found, there is presently no the method for automatic measurement, traditional measuring method complex procedures and for a long time by temperature
The influence measurement result precision of degree is not high.Now it is badly in need of designing a kind of automatic measurement technology, can rapidly all frequencies of scanning survey
Point, and standard database can be automatically generated, ensure that satellite communications services are normally carried out.
The content of the invention
Problems to be solved by the invention are, traditional measuring method complex procedures and are influenced by temperature survey for a long time
It is not high to measure result precision, can not quickly realize all frequency points of scanning survey.
Technological means for solving problem is to propose the method for automatic measurement and system of a kind of radio frequency link, rf chain
The method for automatic measurement on road is using signal source, frequency meter and combines automatic measurement technology, can quick all frequency points of scanning survey,
And standard database is formed, ensure that satellite communications services are normally carried out.
A kind of method for automatic measurement of radio frequency link proposed by the present invention, includes the following steps：
Control signal source sends signal according to interval by the frequency point of setting, and the signal in radio frequency link carries out frequency conversion and power
After amplification, signal power parameter is obtained by power meter；
Collection signal source sends the parameter of signal and measured signal power parameter in real time, and passes through auto-calibration software
The parameter information of radio frequency link is calculated；
The parameter information of gained radio frequency link is formed into link information database and stores and exports.
Further, as a preferred technical solution of the present invention：Frequency conversion is included in radio frequency link in the method
Intermediate-freuqncy signal be converted into high-frequency signal.
Further, as a preferred technical solution of the present invention：Power amplification is included according to distortion in the method
Rate condition produces maximum power output.
The present invention proposes a kind of automatic measurement system of radio frequency link, including：
Signal source, for sending signal by the frequency point of setting according to interval in control signal；
Radio frequency link, for carrying out frequency conversion and power amplification to the signal in radio frequency link；
Power meter, for obtaining power signal parameter to the signal measurement after radio frequency link frequency conversion and power amplification；
Automatic measurement mechanism, for the power letter measured by the parameter of collection signal source transmission signal in real time and power meter
Number parameter, and the parameter information of radio frequency link is calculated；The parameter information of gained radio frequency link is formed into link information data
Storehouse simultaneously stores and exports.
Further, as a preferred technical solution of the present invention：The radio frequency link includes the up-conversion being connected
Device and power amplifier.
Further, as a preferred technical solution of the present invention：The upconverter includes the switching being sequentially connected
Switch, auto-transformer and matching impedance.
Further, as a preferred technical solution of the present invention：The automatic measurement mechanism includes being sequentially connected
Control module, data acquisition module, data processing module, data outputting module, data memory module.
Invention effect is that the present invention provides a kind of method for automatic measurement of radio frequency link using signal source, frequency meter and ties
Close automatic measurement technology, can quickly all frequency points of scanning survey, and form standard database, guarantee satellite communications services it is normal
Carry out, the present invention instead of traditional signal source combination frequency spectrograph manual measurement method, solve conventional method complex procedures,
Large-scale precision instrument is influenced by temperature the problem of causing measurement result precision not high.The present invention has larger advantage and application
Demand.
The present invention has the following advantages that compared with prior art：
(1) traditional measuring method is signal source+frequency spectrograph manual measurement, the present invention design a kind of radio frequency link from
Dynamic measuring method is to replace traditional manual measuring method with signal source, frequency meter and automatic measurement software.Traditional measuring method
It is that link input test mouth (input of upconverter front end) connects signal source, link output test mouth (output of power amplifier rear end)
Connecing frequency spectrograph and receive the signal from signal source, the data union that then manual record is tested obtains link parameter, this
Kind method is time-consuming and laborious, and long-time measuring instrument accuracy is not also high, and now designing a kind of method for automatic measurement of radio frequency link can
Substitute manual record, avoid manually measuring for a long time, measuring instrument is protected from environmental, the problem of causing measurement accuracy not high.
(2) present invention designs a kind of method for automatic measurement of radio frequency link, and automatic measurement software can directly acquire result
Data.Signal source and frequency meter equipment possess network interface, and equipment may be connected on test computer, and radio frequency link is disposed on computer
Automatic measurement software, software-controllable signal source send signal according to the frequency point that certain interval is set, and obtain frequency measurement
The signal parameter obtained, draws respective link parameter, and form standard database.
Brief description of the drawings
Fig. 1 is the radio frequency link method for automatic measurement schematic diagram of the present invention.
Fig. 2 is the radio frequency link automatic measurement software module schematic diagram of the present invention.
Embodiment
Hereinafter, it is described in detail based on attached drawing for the present invention.
As described in Figure 1, the present invention designs a kind of automatic measurement system of radio frequency link, including：Radio frequency link, signal source,
Frequency meter and automatic measurement.Wherein,
Signal source, for sending signal by the frequency point of setting according to interval in control signal；
Radio frequency link, for carrying out frequency conversion and power amplification to the signal in radio frequency link；
Power meter, for obtaining power signal parameter to the signal measurement after radio frequency link frequency conversion and power amplification；
Automatic measurement mechanism, for the power letter measured by the parameter of collection signal source transmission signal in real time and power meter
Number parameter, and the parameter information of radio frequency link is calculated；The parameter information of gained radio frequency link is formed into link information data
Storehouse simultaneously stores and exports.
Specifically, the radio frequency link includes upconverter and the power amplifier being connected.Upconverter by connecting successively
Matching impedance forms in the switching switch, auto-transformer and the high-frequency circuit that connect；Upconverter can be by with certain frequency
Frequency signal is converted into the output signal of high frequency.Power amplifier is made of travelling-wave tubes, is referred under the conditions of given distortion rate, can be produced
Maximum power output is given birth to drive the amplifier of a certain load.Radio Frequency Subsystem receives baseband subsystems and send in satellite communication link
The L-band signal entered, by upconverter and power amplifier, by frequency conversion, enhanced processing, is converted to penetrating for high band
After frequency signal, satellite is sent to through antenna.
And the structure of the automatic measurement mechanism including control module, the data being sequentially connected as shown in Fig. 2, obtain
Modulus block, data processing module, data outputting module, data memory module.Control module can control in automatic measurement mechanism
Signal source and power meter, ensure that signal source sends signal according to certain interval by the frequency point of setting, and elastic calibration device carries out
Signal measurement；Data acquisition module gathers the signal power ginseng for obtaining that signal source sends the parameter of signal and power meter obtains in real time
Count, and the parameter information of link is calculated by data processing module, then pass through data outputting module and form link information number
According to storehouse and data memory module is stored in, and completes data output.
Its principle is that automatic measurement mechanism can directly acquire result data.Signal source and power meter equipment possess network and connect
Mouthful, equipment may be connected on self-operated measuring unit, and the automatic measurement of the present embodiment uses computer, disposes radio frequency link on computers
Automatic measurement software, software-controllable signal source send signal according to the frequency point that certain interval is set, and obtain frequency measurement
The signal parameter obtained, draws respective link parameter, and form standard database.
On the basis of device, a kind of method for automatic measurement of radio frequency link proposed by the present invention, includes the following steps：
Signal source in satellite communication link is controlled to send signal by the frequency point of setting according to interval, and in radio frequency link
After signal carries out frequency conversion and power amplification, measurement obtains power signal parameter；
Collection signal source sends the parameter of signal and measured power signal parameter in real time, and radio frequency link is calculated
Parameter information；
The parameter information of gained radio frequency link is formed into link information database and stores and exports.
Wherein, frequency conversion includes being converted into high-frequency signal to the intermediate-freuqncy signal in radio frequency link in the method.Power amplification
Including producing maximum power output according to distortion rate condition.
To sum up, the present invention is the method for automatic measurement and system of a kind of radio frequency link, using signal source, power meter and is combined
Automatic measurement technology, instead of the method for traditional signal source combination frequency spectrograph manual measurement, quick all frequency points of scanning survey,
And standard database is formed, ensure that satellite communications services are normally carried out.
It should be noted that described above is only the preferred embodiment of the present invention, it will be appreciated that for art technology
For personnel, some changes and improvements can also be made on the premise of the technology of the present invention design is not departed from, these are included in
In protection scope of the present invention.
Claims (7)
1. a kind of method for automatic measurement of radio frequency link, it is characterised in that include the following steps：
Control signal source sends signal according to interval by the frequency point of setting, and the signal in radio frequency link carries out frequency conversion and power amplification
Afterwards, signal power parameter is obtained by power meter；
Collection signal source sends the parameter of signal and measured signal power parameter in real time, and is calculated by auto-calibration software
Draw the parameter information of radio frequency link；
The parameter information of gained radio frequency link is formed into link information database and stores and exports.
2. the method for automatic measurement of radio frequency link according to claim 1, it is characterised in that in the method frequency conversion include pair
Intermediate-freuqncy signal in radio frequency link is converted into high-frequency signal.
3. the method for automatic measurement of radio frequency link according to claim 1, it is characterised in that power amplification bag in the method
Include and maximum power output is produced according to distortion rate condition.
A kind of 4. automatic measurement system of radio frequency link, it is characterised in that including：
Signal source, for sending signal by the frequency point of setting according to interval in control signal；
Radio frequency link, for carrying out frequency conversion and power amplification to the signal in radio frequency link；
Power meter, for obtaining power signal parameter to the signal measurement after radio frequency link frequency conversion and power amplification；
Automatic measurement mechanism, for the power signal ginseng measured by the parameter of collection signal source transmission signal in real time and power meter
Number, and the parameter information of radio frequency link is calculated；The parameter information of gained radio frequency link is formed into link information database simultaneously
Storage and output.
5. the automatic measurement system of radio frequency link according to claim 4, it is characterised in that the radio frequency link includes being connected
The upconverter and power amplifier connect.
6. the automatic measurement system of radio frequency link according to claim 5, it is characterised in that the upconverter is included successively
Connected switching switch, auto-transformer and matching impedance.
7. the automatic measurement system of radio frequency link according to claim 4, it is characterised in that the automatic measurement mechanism bag
Include the control module being sequentially connected, data acquisition module, data processing module, data outputting module, data memory module.
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| CN201711231797.6A CN108011676A (en) | 2017-11-30 | 2017-11-30 | The method for automatic measurement and system of radio frequency link |
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| CN201711231797.6A CN108011676A (en) | 2017-11-30 | 2017-11-30 | The method for automatic measurement and system of radio frequency link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641953A (en) * | 2020-04-08 | 2020-09-08 | 普联技术有限公司 | Configuration method and device of radio frequency link, radio frequency system and storage medium |
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| CN1917404A (en) * | 2005-08-19 | 2007-02-21 | 重庆信威通信技术有限责任公司 | Detection device and method of amplifier at column top in SCDMA system |
| US20160211880A1 (en) * | 2015-01-16 | 2016-07-21 | Choi Jae-Won | Method and apparatus for detecting power |
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Application publication date: 20180508 |