CN106597094A - Method of receiver for automatically acquiring amplitude-frequency of radiofrequency signal - Google Patents
Method of receiver for automatically acquiring amplitude-frequency of radiofrequency signal Download PDFInfo
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- CN106597094A CN106597094A CN201611126917.1A CN201611126917A CN106597094A CN 106597094 A CN106597094 A CN 106597094A CN 201611126917 A CN201611126917 A CN 201611126917A CN 106597094 A CN106597094 A CN 106597094A
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- signal
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- radiofrequency signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention relates to a method of a receiver for automatically acquiring the amplitude-frequency of a radiofrequency signal. The method comprises the following steps: (1) obtaining a broadband power value of the RF signal by sampling; (2) calculating signal power according to the broadband power value to determine whether or not a signal gets access; (3) determining the reference level of the receiver according to the signal power when a signal gets access; (4) dividing the frequency range that can be measured by the receiver into multiple frequency bands according to the maximum bandwidth of an instrument to obtain the RF signal; (5) comparing the power values of the frequency bands to find out the frequency band of the RF signal; (6) determining the accurate frequency value of the RF signal by using a frequency error calculation function of the receiver; and (7) obtaining the accurate power value of the RF signal by using a narrowband power measurement function of the receiver to automatically acquire the amplitude-frequency of the RF signal. The method of the invention effectively reduces the time cost for acquiring the amplitude-frequency of the RF signal and improves the working efficiency of the system for measuring the amplitude-frequency information of the RF signal.
Description
Technical field
The present invention relates to technical field of measurement and test, is particularly a kind of automatic amplitude-frequency capture side of receiver to radiofrequency signal
Method and device.
Background technology
In the fields of measurement of radiofrequency signal, we generally need by electronic measuring instrument obtain radiofrequency signal frequency,
The information such as amplitude.The electronic measuring instrument of existing receiver type, such as signal strength meter, energy meter, audiofrequency spectrometer etc., measurement step
Suddenly it is：The current measurable frequency range of setting measurement instrument and different datums first, if looked in the frequency range
Less than the radiofrequency signal, then the frequency range of measurement is changed till capturing radiofrequency signal；Or have already known and penetrate
The frequency approximate range of frequency signal is measuring the radiofrequency signal.When unknown radiofrequency signal is measured, traditional measuring method exists
When measuring this class signal, measurement process is comparatively laborious, and required time cost is too high, is unfavorable for the measurement work of radiofrequency signal
Make.
In the fields of measurement of radiofrequency signal, power is a most frequently measured index in RF application.In measurement work(
In terms of rate, traditional measuring instrument typically only has simple function, such as：The energy meter of measurement radiofrequency signal broadband power, measurement
The audiofrequency spectrometer of the spectrum measurement in the signal strength meter and finite bandwidth of radiofrequency signal narrow band power.For these simple functions
Measuring instrument, although have all well and good performance in terms of multiple indexs of measurement radiofrequency signal；But these traditional measurement instrument
Device is typically necessary the precise frequencies or general frequency range for knowing the radiofrequency signal during signal power is obtained, this
Sample just can obtain the power of signal in the range of the measurement frequency for determining.
In the fields of measurement of radiofrequency signal, some comprehensive testers are also occurred in that, contain traditional energy meter, signal
The function of intensitometer and audiofrequency spectrometer, comprehensive tester can be according to the concrete properties of radiofrequency signal come selection signal intensity, radio frequency
The different function such as energy meter and spectrum analyses is measuring radiofrequency signal.But traditional comprehensive tester is also simple handle
These functions are put together, equally need for knowing the frequency model that radiofrequency signal is general during measurement radiofrequency signal
Enclose.
In radiofrequency signal measurement process, often there is the problem to the measurement of unknown radiofrequency signal, if we utilize
Traditional measuring method can run into very big difficulty in terms of radiofrequency signal amplitude-frequency signal is obtained, in order to solve this problem,
On the basis of we are needed according to the characteristic and ardware feature of existing radio-frequency measurement technology, the radio frequency of more convenient and quicker is designed
Signal amplitude-frequency acquisition methods.
The traditional radiofrequency signal amplitude-frequency measuring method of the above, measurement process are slow, and time cost is too high, debugging work load
Greatly, main shortcoming has：
Traditional method is in order to obtain the frequency of radiofrequency signal, it is necessary to sets some frequency separation by measuring instrument and measures
Signal, if radiofrequency signal does not change next frequency separation in the frequency separation till finding the radiofrequency signal again,
This traditional measuring method is slow, and time cost is too high.
Traditional method is required for the reference electricity of adjusting measuring apparatus device during the frequency and power of radiofrequency signal is obtained
It is flat, for finding radiofrequency signal.If the power ratio of radiofrequency signal is less, traditional method is needed from the high datum of comparison
To find radiofrequency signal, this increases the workload of radiofrequency signal amplitude-frequency measurement to reduction datum step by step significantly.
Traditional measuring instrument function is relatively simple, is obtaining radiofrequency signal amplitude-frequency message context, particularly radiofrequency signal
Frequency in terms of, workload is than larger.In terms of some outfield signal measurements, the measuring instrument of the tradition simple function such as energy meter
Just unsuitable for.
The content of the invention
The present invention proposes a kind of automatic amplitude-frequency catching method of receiver to radiofrequency signal, based on digitized low cost
Auto level control technology, realizes the precise control output to general signal generator in certain power bracket, to solve the above-mentioned back of the body
The problem proposed in scape technology.
For achieving the above object, a kind of automatic amplitude-frequency catching method of receiver to radiofrequency signal, comprises the following steps：
Step one：The broadband power value that radiofrequency signal is obtained by sampling；
Step 2：Signal access is determined whether there is according to the value signal calculated power；
Step 3：The datum of receiver when having signal to access, is then determined according to the performance number；
Step 4：The frequency range can measured by receiver is divided into multiple frequency ranges acquisitions according to the maximum bandwidth of instrument and penetrates
Frequency signal；
Step 5：The frequency separation at radiofrequency signal place is found by the performance number for comparing these frequency ranges；
Step 6：The precise frequencies value of radiofrequency signal is determined using the frequency error computing function on receiver；
Step 7：The exact power value of radiofrequency signal is obtained using the narrow band power measurement function on receiver, completes to penetrate
The acquisition of the automatic amplitude-frequency of frequency signal.
Compared with prior art, the present invention has advantages below：
1st, the present invention measures the technical characteristic of radiofrequency signal according to receiver, devises a kind of automatic amplitude-frequency of radiofrequency signal
The software approach of acquisition, reduces the time cost of radiofrequency signal amplitude-frequency measurement, simplifies the flow process of radiofrequency signal measurement.
2nd, the datum in the method arranges technology automatically, arranges automatically datum using software algorithm, reduces
Determine the time of datum, also eliminate the flow process that datum is set.
3rd, the Automatic Frequency acquiring technology in the method, obtains the frequency of signal using software algorithm, greatly reduces instrument
Device determines the time cost of radio frequency signal frequency, is especially suitable for during some field testings the measurement to unknown signaling, improves
The work efficiency of radiofrequency signal measurement.
4th, the automatic acquiring technology of power in the method, obtains the power of signal using software algorithm, fully achieves one
Key measures the function of RF signal power, and the user for alloing starts with measuring instrument faster, and in the survey of some unknown signalings
Play in amount and act on.
Description of the drawings
Fig. 1 is method of the present invention flow chart.
Specific embodiment
For ease of being better understood from the purpose of the present invention, feature and effect etc., in conjunction with the drawings and specific embodiments pair
The present invention is described in further detail.
A kind of automatic amplitude-frequency catching method of receiver as shown in Figure 1 to radiofrequency signal, comprises the following steps：
Step one：The broadband power value that radiofrequency signal is obtained by sampling；
Step 2：Signal access is determined whether there is according to the value signal calculated power；
Step 3：The datum of receiver when having signal to access, is then determined according to the performance number；
Step 4：The frequency range can measured by receiver is divided into multiple frequency ranges acquisitions according to the maximum bandwidth of instrument and penetrates
Frequency signal；
Step 5：The frequency separation at radiofrequency signal place is found by the performance number for comparing these frequency ranges；
Step 6：The precise frequencies value of radiofrequency signal is determined using the frequency error computing function on receiver；
Step 7：The exact power value of radiofrequency signal is obtained using the narrow band power measurement function on receiver, completes to penetrate
The acquisition of the automatic amplitude-frequency of frequency signal.
Said method mainly controls receiver hardware and the data to obtaining from hardware are processed to what is completed.
The present invention the course of work be：The broadband power value that radiofrequency signal is obtained by sampling, according to the value signal calculated
Power determines whether there is signal access, while determining the datum for measuring the signal；Then radio frequency signal frequency is just to determine,
Maximum intermediate-frequency bandwidth is set receiver measurable frequency range is divided into multistage, multiple measured value is obtained by comparing acquisition
Radiofrequency signal determines the probable ranges of radiofrequency signal, obtains accurate radio frequency letter by the frequency error computing function in receiver
Number frequency；Finally determine signal amplitude, after setting accurate signal frequency in receivers, surveyed by the narrow band power of receiver
Amount method measures the accurate amplitude of radiofrequency signal.
The method of the present invention, is effectively reduced the time cost of radiofrequency signal amplitude-frequency acquisition, improves systematic survey radio frequency letter
The work efficiency of number amplitude-frequency information.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic,
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (1)
1. automatic amplitude-frequency catching method of a kind of receiver to radiofrequency signal, it is characterised in that comprise the following steps：
Step one：The broadband power value that radiofrequency signal is obtained by sampling；
Step 2：Signal access is determined whether there is according to the value signal calculated power；
Step 3：The datum of receiver when having signal to access, is then determined according to the performance number；
Step 4：The frequency range can measured by receiver is divided into multiple frequency ranges according to the maximum bandwidth of instrument and obtains radio frequency letter
Number；
Step 5：The frequency separation at radiofrequency signal place is found by the performance number for comparing these frequency ranges；
Step 6：The precise frequencies value of radiofrequency signal is determined using the frequency error computing function on receiver；
Step 7：The exact power value of radiofrequency signal is obtained using the narrow band power measurement function on receiver, radio frequency letter is completed
Number automatically acquisition of amplitude-frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126917.1A CN106597094A (en) | 2016-11-24 | 2016-11-24 | Method of receiver for automatically acquiring amplitude-frequency of radiofrequency signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126917.1A CN106597094A (en) | 2016-11-24 | 2016-11-24 | Method of receiver for automatically acquiring amplitude-frequency of radiofrequency signal |
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|---|---|
| CN106597094A true CN106597094A (en) | 2017-04-26 |
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| CN201611126917.1A Pending CN106597094A (en) | 2016-11-24 | 2016-11-24 | Method of receiver for automatically acquiring amplitude-frequency of radiofrequency signal |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038435A (en) * | 1997-12-24 | 2000-03-14 | Nortel Networks Corporation | Variable step-size AGC |
| CN101908896A (en) * | 2009-06-03 | 2010-12-08 | 中国科学院微电子研究所 | Multi-band radio frequency receiver |
| CN102109553A (en) * | 2009-12-25 | 2011-06-29 | 北京普源精电科技有限公司 | Digital spectrum analyzer and method for fast positioning of measuring signals |
| CN102759658A (en) * | 2011-04-29 | 2012-10-31 | 特克特朗尼克公司 | Method for automatically setting frequency span in a spectrum analyzer |
| CN104378105A (en) * | 2014-10-08 | 2015-02-25 | 中国电子科技集团公司第四十一研究所 | Method for increasing receiver scanning speed on basis of whole-process phase-locked technique |
-
2016
- 2016-11-24 CN CN201611126917.1A patent/CN106597094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038435A (en) * | 1997-12-24 | 2000-03-14 | Nortel Networks Corporation | Variable step-size AGC |
| CN101908896A (en) * | 2009-06-03 | 2010-12-08 | 中国科学院微电子研究所 | Multi-band radio frequency receiver |
| CN102109553A (en) * | 2009-12-25 | 2011-06-29 | 北京普源精电科技有限公司 | Digital spectrum analyzer and method for fast positioning of measuring signals |
| CN102759658A (en) * | 2011-04-29 | 2012-10-31 | 特克特朗尼克公司 | Method for automatically setting frequency span in a spectrum analyzer |
| CN104378105A (en) * | 2014-10-08 | 2015-02-25 | 中国电子科技集团公司第四十一研究所 | Method for increasing receiver scanning speed on basis of whole-process phase-locked technique |
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Application publication date: 20170426 |