CN105471454B - For the self-correcting equipment of radio-frequency signal source and the correction system of radiofrequency signal - Google Patents
For the self-correcting equipment of radio-frequency signal source and the correction system of radiofrequency signal Download PDFInfo
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Abstract
The invention discloses a kind of self-correcting equipment for radio-frequency signal source and the correction systems of radiofrequency signal, the self-correcting equipment has with lower module: setup module, at least one correction frequency, correction amplitude corresponding with the correction frequency, radio frequency output rating and radio frequency output amplitude to be arranged；Output module, for generating radio frequency output signal according to correction frequency and correction amplitude；Module is obtained, for obtaining the actual margin of the radio frequency output signal obtained by external measurement devices measurement；Computing module obtains compensation magnitude for calculating actual margin and correcting the difference of amplitude；Correction module, for generating radio frequency output calibration signal according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude.The correction system includes a radio-frequency signal source and a power meter.Correction system and self-correcting equipment of the invention can be corrected according to frequency of the user demand to setting, not need to return factory, operation is more rapidly, conveniently, more with practical value.
Description
Technical field
It is the present invention relates to radiofrequency signal fields of measurement, in particular to a kind of for the self-correcting equipment of radio-frequency signal source and one
The correction system of kind radiofrequency signal.
Background technique
Before radio-frequency signal source factory, it usually needs carry out the calibration of overall performance.It is in the prior art to penetrating with reference to Fig. 1
Frequency source signal 101 carries out the structural schematic diagram of the calibration system of overall performance calibration.Calibration system 1 include radio-frequency signal source 101,
Power meter 102 and PC (PC) 103, radio-frequency signal source 101 are defeated according to the PC103 output power being arranged and output amplitude
Radiofrequency signal out；Power meter 102 measures the actual value for the radiofrequency signal that radio-frequency signal source 101 exports, and the actual value is sent
To PC103；Calibration software is loaded on PC103, for the output frequency and output amplitude of radio-frequency signal source 101, Yi Jishe to be arranged
The measurement frequency of power meter 102 is set, and is penetrated according to 102 actual value of power meter read with what radio-frequency signal source 101 exported
Frequency signal calculates the error of radiofrequency signal, is finally calibrated according to the error to radio-frequency signal source 101.
The calibration that radio-frequency signal source is done before factory needs to be familiar with the profession calibration people of professional calibration software and instrument hardware
Member, calibrates the index of each frequency point, therefore there are certain requirements to professional and prover time one by one, needs to spend
Certain manpower and time.But the device in radio-frequency signal source has service life, can generate some errors at any time,
And radio frequency source in actual use, can because a variety of causes cause some frequency points output power inaccuracy ask
Topic, such as: the calibration data of device aging, temperature or factory is unable to the influence of meet demand etc., and only needs to these at this time
There are the frequency points of error to be corrected, it is not necessary to calibrate to each frequency point, just be able to satisfy calibration requirements, therefore, In
In this case also by instrument return factory calibrated not but it is not necessary to, but also a large amount of manpower and time can be wasted.
In conclusion lacking one kind in the prior art not when radio-frequency signal source only has individual frequency points to need to calibrate
Factory must be returned and do the calibration of overall performance, and do the calibration method calibrated and calibration system just for a other frequency point.
Summary of the invention
In order to solve the problems in the existing technology, the invention proposes a kind of self-correcting formal dress for radio-frequency signal source
It sets and a kind of correction system of radiofrequency signal.
The invention proposes a kind of self-correcting equipments for radio-frequency signal source, have with lower module:
Setup module, at least one correction frequency, correction amplitude corresponding with the correction frequency, radio frequency output to be arranged
Frequency and radio frequency output amplitude；
Output module, for generating correction output signal according to the correction frequency and correction amplitude；
Module is obtained, for obtaining the actual web of the correction output signal obtained by external measurement devices measurement
Degree；
Computing module obtains compensation magnitude for calculating actual margin and correcting the difference of amplitude；
Correction module, for generating radio frequency output calibration according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude
Signal.
In self-correcting equipment of the present invention, setup module, at least one correction frequency and the correction to be arranged
The corresponding correction amplitude of frequency can also include: at least one correction frequency of setting, and one corresponding with the correction frequency
Correction amplitude or multiple correction amplitudes.
In self-correcting equipment of the present invention, work as setup module, for be arranged at least one correction frequency and with the school
When the corresponding correction amplitude of positive frequency, output module, for generating correction according to the correction frequency and correction amplitude
Output signal can also refer to for according to the corresponding correction frequency of every a pair and correction amplitude, correcting respectively in every a pair
A correction output signal is generated at frequency and correction amplitude.
In self-correcting equipment of the present invention, work as setup module, for be arranged at least one correction frequency and with this
When correcting the corresponding multiple correction amplitudes of frequency, output module, for generating school according to the correction frequency and correction amplitude
Positive output signal can also refer to for respectively according to each group of corresponding correction frequency and corresponding more with the correction frequency
A correction amplitude generates multiple corrections outputs at each correction amplitude in each group of correction frequency and multiple correction amplitudes and believes
Number.
In self-correcting equipment of the present invention, correction module, for according to compensation magnitude, radio frequency output frequency and penetrating
Frequency output amplitude obtains radio frequency output calibration signal, can also refer to when radio frequency output frequency is equal to correction frequency, radio frequency is defeated
Out the amplitude of correction signal be equal to compensation magnitude corresponding with the correction frequency and radio frequency output amplitude and；When radio frequency exports frequency
When rate is equal to any frequency between two correction frequencies, the amplitude of radio frequency output calibration signal is equal to and described two correction frequencies
The corresponding compensation magnitude of rate do the range value that is obtained after linear difference and radio frequency output amplitude and.
In self-correcting equipment of the present invention, correction module, for according to compensation magnitude, radio frequency output frequency and penetrating
Frequency output amplitude obtains radio frequency output calibration signal, can also refer to, and when radio frequency output frequency is equal to correction frequency, and penetrates
When frequency output amplitude is equal to correction amplitude corresponding with the correction frequency, the amplitude of radio frequency output calibration signal is equal to and the correction
The corresponding compensation magnitude of amplitude and radio frequency output amplitude and；When radio frequency output frequency is equal to correction frequency, and radio frequency output width
When degree is equal to any amplitude between two correction amplitudes corresponding with the correction frequency, the amplitude etc. of radio frequency output calibration signal
In compensation magnitude corresponding with described two correction amplitudes do the range value that is obtained after linear difference and radio frequency output amplitude and.
In self-correcting equipment of the present invention, setup module can be also used for setting and the correction frequency pair
The residence time answered, output module, for continuing in the residence time according to the correction frequency and correction amplitude
Generate the correction output signal of correction frequency corresponding with the residence time.
The invention also provides a kind of correction system of radiofrequency signal, including a radio-frequency signal source and a power meter, radio frequencies
The output end of signal source and the input terminal of power meter connect, the first control port of radio-frequency signal source and the first control of power meter
Port connection, radio-frequency signal source are used to correct setting according to radio frequency and generate correction output signal, and will be described by its output end
Correction output signal be sent to power meter, power meter is used to receive the correction output signal, measurement by its input terminal
The amplitude of the correction output signal generates the actual margin of the correction output signal, and passes through its first control terminal
The actual margin is sent to radio-frequency signal source, radio-frequency signal source is also used to receive by its first control port described
Actual margin, and according to the actual margin, radio frequency correction setting and radio frequency output setting, generate radio frequency output calibration letter
Number.
In correction system of the present invention, the first control port of the radio-frequency signal source and the power meter
First control port can also all be USB control port.
Compared with prior art, self-correcting equipment of the present invention can according to the correction needs of radio-frequency signal source, for
Specified part frequency point is corrected, and can also be corrected for same frequency point difference amplitude, and correction is more convenient, and
And calibration system structure of the present invention is simple, it is only necessary to which correction, system building can be completed in radio-frequency signal source and power meter
It is more easier, does not need the calibration knowledge of profession, operation is simpler, can satisfy a variety of measurement demands, has more usability
And operability.
Detailed description of the invention
Fig. 1 is in the prior art for calibrating the structural schematic diagram of the calibration system of radio-frequency signal source.
Fig. 2 is the flow chart in the embodiment of the present invention for the automatic correcting method of radio-frequency signal source.
Fig. 3 is the structural schematic diagram in the embodiment of the present invention for the self-correcting equipment of radio-frequency signal source.
Fig. 4 is the structural schematic diagram of the correction system of radiofrequency signal in the embodiment of the present invention.
Specific embodiment
For the purposes, technical schemes and advantages of embodiment of the present invention are more clearly understood, with reference to the accompanying drawing to this
The embodiment of invention is described in further details.
In order to solve in the prior art, when radio-frequency signal source is calibrated every time, requires to return factory, passes through professional calibration software pair
The problem of all frequency points are calibrated, and waste of manpower and time are caused, does not need to return factory, can be according to school the invention proposes one kind
Positive demand is for the specified corrected bearing calibration of part frequency point, means for correcting and correction system.
It is the flow chart in the embodiment of the present invention for the automatic correcting method of radio-frequency signal source with reference to Fig. 2.
Automatic correcting method described in the present embodiment can be used for being loaded into radio-frequency signal source, and radio-frequency signal source runs the correction
Method can be corrected it in the amplitude of the output signal of assigned frequency.
The specific embodiment of automatic correcting method is discussed in detail below with reference to Fig. 2.
201: at least one correction frequency, correction amplitude corresponding with the correction frequency, radio frequency output frequency being set and penetrated
Frequency output amplitude；
In the present embodiment, the implementation of step 201 includes that at least one is arranged to correct frequency, corresponding with the correction frequency
One correction amplitude or multiple correction amplitudes, radio frequency output frequency and radio frequency output amplitude.
In the present embodiment, correction frequency refers to the frequency that the radio-frequency signal source that user is arranged before being corrected needs to correct
Rate, correction amplitude refer to the amplitude for needing to correct at the correction frequency that user is arranged before being corrected, correction amplitude with
It is corresponding to correct frequency.In the present embodiment, the automatic correcting method can be realized two different corrections, when implementation first
When kind bearing calibration, user needs to correct set of frequency one corresponding correction amplitude for each；When carrying out second of school
When correction method, user needs to correct the multiple corresponding correction amplitudes of set of frequency for each.In practical application, two kinds of corrections
Method is respectively used to meet different correction demands.
For example, a correction frequency can be arranged in user by the setup module of radio-frequency signal source for the first bearing calibration
Rate P1Or multiple correction frequency P1、P2……PN, then it is arranged by setup module again and corrects frequency P1Or P1、P2……PN
Corresponding correction amplitude A1Or A1、A2……AN, radio-frequency signal source is passed through for second of bearing calibration, user setting
A correction frequency P is arranged in module1Or multiple correction frequency P1、P2……PN, then it is arranged and corrects by setup module again
Frequency P1Or P1、P2……PNCorresponding multiple correction amplitude As11、A12……A1MOr A11、A12……A1M, A21、A22……A2M,
A31、A32……A2M... ..., AN1、AN2……ANM, wherein N is the number of the correction frequency of setting, and M is and each correction frequency
The number of corresponding correction amplitude.In the present embodiment, the number of correction amplitude corresponding with each correction frequency is identical.As
For example, the number of correction amplitude corresponding with each correction frequency can not be identical, can arbitrarily be taken according to correction demand
Value.
In the present embodiment, radio frequency output frequency refers to that user wishes the frequency of radio-frequency signal source output signal, corresponding
Ground, radio frequency output amplitude refer to that user wishes the amplitude of radio-frequency signal source output signal.
For example, user wishes that radio-frequency signal source output frequency is Pout, amplitude AoutRadiofrequency signal, then user just needs
It is P that radio frequency output frequency to be arranged by the setup module of radio-frequency signal sourceout, radio frequency output amplitude be Aout, radio-frequency signal source
Radiofrequency signal needed for then being generated according to above-mentioned setting.
202: according to the correction frequency and correction amplitude, generating correction output signal；
In the present embodiment, the implementation of step 202 includes according to the corresponding correction frequency being arranged in step 201 and school
Positive amplitude generates correction output signal.
For the first bearing calibration, i.e., when the implementation of step 201 be arranged at least one correction frequency and with the correction frequency
When the corresponding correction amplitude of rate, step 202 is then respectively according to the corresponding correction frequency of every a pair and correction amplitude, every
A correction output signal is generated at a pair of correction frequency and correction amplitude.For example, user passes through the setting mould of radio-frequency signal source
Three pairs of correction frequencies and correction amplitude, respectively correction frequency P are arranged in block1With correction amplitude A1, correction frequency P2With correction amplitude
A2And correction frequency P3With correction amplitude A3, then radio-frequency signal source can produce respectively according to every a pair of of correction frequency and correction amplitude
A raw correction output signal, i.e., totally three correction output signals, respectively in P1、A1The correction output signal S at place1, in P2、A2
The correction output signal S at place2With in P3、A3The correction output signal S at place3, last radio-frequency signal source by these correct output signal
Output.
For second of bearing calibration, i.e., when the implementation of step 201 be setting at least one correct frequency and with the correction
When the corresponding multiple correction amplitudes of frequency, step 202 then for respectively according to each group of corresponding correction frequency and with the school
The corresponding multiple correction amplitudes of positive frequency generate at each correction amplitude in each group of correction frequency and multiple correction amplitudes
Multiple correction output signals.For example, three groups of correction frequencies and correction width are arranged by the setup module of radio-frequency signal source in user
Degree, respectively correction frequency P1 and correction amplitude A11、A12……A1M, correct frequency P2 and correction amplitude A21、A22……A2M, and
Correct frequency P3 and correction amplitude A31、A32……A3M, then radio-frequency signal source can be respectively according to each group of correction frequency and correction
Amplitude generates M correction output signal, i.e., total 3*M correction output signal, respectively in P1、A11The correction output signal at place
S11, in P1、A12The correction output signal S at place12..., in P1、A1MThe correction output signal S at place1M；In P2、A21The correction at place
Output signal S21, in P2、A22The correction output signal S at place22..., in P2、A2MThe correction output signal S at place2M；With in P3、
A31The correction output signal S at place31, in P3、A32The correction output signal S at place32..., in P3、A3MThe correction output signal at place
S3M, last radio-frequency signal source by these correction output signals export.
203: obtaining the actual margin of the correction output signal obtained by external measurement devices measurement；
After step 202 generates correction output signal, the survey that radio frequency signal amplitude can be measured outside radio-frequency signal source is given
Equipment is measured, which measures the amplitude of calibration output signal, obtains the actual web angle value of correction output signal.
The implementation of step 203 is to obtain the actual web angle value of the correction output signal of external equipment output.I.e. radio frequency is believed
Number source read the actual web angle value for the correction output signal that external measurement devices measurement obtains.
In the present embodiment, external measurement devices are that power meter etc. can be with the instrument of precise measurement radio frequency signal amplitude.
204: calculating actual margin and correct the difference of amplitude, obtain compensation magnitude；
Step 204 is used to calculate the actual margin and the correction output signal for the correction output signal that step 203 is got
The difference of corresponding correction amplitude obtains compensation magnitude corresponding with the correction output signal.
For the first bearing calibration,
Assuming that correction output signal S1Actual margin be C1, from the foregoing, it will be observed that with correction output signal S1Corresponding correction width
Degree is A1, therefore with correction output signal S1Corresponding compensation magnitude B1=C1-A1；
Assuming that correction output signal S2Actual margin be C2, by above it is found that with correction output signal S2Corresponding correction
Amplitude is A2, therefore with correction output signal S2Corresponding compensation magnitude B2=C2-A2,
And so on, obtain compensation magnitude corresponding with all correction output signals.
Therefore it has also obtained correction frequency corresponding with correction output signal and has corrected the pass between amplitude and compensation magnitude
It is to get having arrived at specified correction frequency and correction amplitude, the amplitude that the amplitude of radio frequency output signal needs to compensate is seen below
Table:
Table one
| Correct frequency | Correction amplitude | Compensation magnitude |
| P1 | A1 | B1 |
| P2 | A2 | B2 |
| …… | …… | …… |
| PN | AN | BN |
Similarly, for second of bearing calibration,
Assuming that correction output signal S11Actual margin is C11, by above it is found that with correction output signal S11Corresponding correction
Amplitude is A11, therefore with correction output signal S11Corresponding compensation magnitude B11=C11-A11；
Assuming that correction output signal S12Actual margin be C12, by above it is found that with correction output signal S12Corresponding school
Positive amplitude is A12, therefore with correction output signal S12Corresponding compensation magnitude B12=C12-A12；
Assuming that correction output signal S21Actual margin be C21, have above it is found that with correction output signal S21Corresponding school
Positive amplitude is A21, therefore with correction output signal S21Corresponding compensation magnitude is B21=C21-A21,
And so on, obtain compensation magnitude corresponding with all correction output signals.
Therefore the pass between correction frequency corresponding with correction output signal, correction amplitude and compensation magnitude has also been obtained
It is to get having arrived at specified correction frequency and correction amplitude, the amplitude that the amplitude of radio frequency output signal needs to compensate is seen below
Table:
Table two
205: according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude, generating radio frequency output calibration signal.
The implementation of step 205 is corrected to radio frequency output signal, that is, root according to compensation magnitude obtained above
Look into table above according to the radio frequency output frequency and radio frequency output amplitude of user setting, according in table with radio frequency output frequency and radio frequency
The corresponding compensation magnitude of output amplitude, the radio frequency output signal after being corrected, i.e. radio frequency output calibration signal.Specific implementation side
Method is as follows:
For the first bearing calibration, when radio frequency output frequency is equal to correction frequency, the width of radio frequency output calibration signal
Degree be equal to compensation magnitude corresponding with the correction frequency and radio frequency output amplitude and.
Assuming that user selects the first bearing calibration to be corrected radio frequency output signal at this time, the radio frequency of user setting is defeated
Frequency is P outout, radio frequency output amplitude is Aout, obtained after look-up table one, PoutEqual to the correction frequency P in table oneQ,
PQCorresponding compensation magnitude is BQ, then, amplitude=A of radio frequency output calibration signal at this timeout+BQ, so user wishes radio frequency
The frequency of signal source output is Pout, amplitude AoutRadio frequency output signal, by the first bearing calibration correction after, radio frequency letter
It is P that number source reality output, which is frequency,out, amplitude Aout+BQRadio frequency output calibration signal, it is achieved that in frequency Pout
Locate the amplitude correction of radio-frequency signal source output signal.
Similarly for the first bearing calibration, when radio frequency output frequency is equal to any frequency between two correction frequencies
When, the amplitude of radio frequency output calibration signal, which is equal to after compensation magnitude corresponding with described two correction frequencies does linear difference, to be obtained
Range value and radio frequency output amplitude and.
Assuming that user selects the first bearing calibration to be corrected radio frequency output signal at this time, the radio frequency of user setting is defeated
Frequency is P outout, radio frequency output amplitude is Aout, obtained after look-up table one, PoutFor the correction frequency P in table oneR
And PSBetween a frequency, and in PRAnd PSBetween do not have other correct frequency, PRCorresponding compensation magnitude is BR, PSCorresponding benefit
Repaying amplitude is BS, then, amplitude=A of radio frequency output calibration signal at this timeout+(BR-BS)/(PR-PS)*(Pout-Ps)+Bs, institute
Wish the frequency of radio-frequency signal source output for P with userout, amplitude AoutRadio frequency output signal, by the first correction side
After method correction, radio-frequency signal source reality output is that frequency is Pout, amplitude is radio frequency Aout+(BR-BS)/(PR-PS)*(Pout-Ps)
+BsRadio frequency output calibration signal, it is achieved that in frequency PoutLocate the amplitude correction of radio-frequency signal source output signal.
For second of bearing calibration, when radio frequency output frequency is equal to correction frequency, and radio frequency output amplitude be equal to
When the corresponding correction amplitude of the correction frequency, the amplitude of radio frequency output calibration signal is equal to compensation width corresponding with the correction amplitude
Degree with radio frequency output amplitude and.
Assuming that user selects second of bearing calibration to be corrected radio frequency output signal at this time, the radio frequency of user setting is defeated
Frequency is P outout, radio frequency output amplitude is Aout, obtained after look-up table two, PoutEqual to the correction frequency P in table twoT,
And AoutIt is equal to and PTAn amplitude A in corresponding correction amplitudeTU, ATUCorresponding compensation magnitude is BTU, then, radio frequency is defeated at this time
Amplitude=A of correction signal outout+BTU, so user wishes that the frequency of radio-frequency signal source output is Pout, amplitude AoutPenetrate
Frequency output signal, after second of bearing calibration correction, radio-frequency signal source reality output is that frequency is Pout, amplitude is to penetrate
Frequency Aout+BTURadio frequency output calibration signal, it is achieved that in frequency PoutLocate the amplitude correction of radio-frequency signal source output signal.
Similarly for second of bearing calibration, frequency is corrected when radio frequency output frequency is equal to, and radio frequency output amplitude is equal to
When any amplitude between two correction amplitudes corresponding with the correction frequency, the amplitude of radio frequency output calibration signal is equal to and institute
State the corresponding compensation magnitude of two correction amplitudes do the range value that is obtained after linear difference and radio frequency output amplitude and.
Assuming that user selects second of bearing calibration to be corrected radio frequency output signal at this time, the radio frequency of user setting is defeated
Frequency is P outout, radio frequency output amplitude is Aout, obtained after look-up table two, PoutEqual to the correction frequency P in table twoV,
AoutFor in correction frequency PVTwo correction amplitude As in corresponding correction amplitudeVWAnd AVXBetween an amplitude, and in AVWWith
AVXBetween there is no other correction amplitudes, AVWCorresponding compensation magnitude is BVW, AVXCorresponding compensation magnitude is BVX, then, at this time
Amplitude=A of radio frequency output calibration signalout+(BVW-BVX)/(AVW-AVX)*(Aout-AVX)+BVX, so user wishes that radio frequency is believed
The frequency of number source output is Pout, amplitude AoutRadio frequency output signal, by the first bearing calibration correction after, radiofrequency signal
Source reality output is that frequency is Pout, amplitude is radio frequency Aout+(BVW-BVX)/(AVW-AVX)*(Aout-AVX)+BVXRadio frequency output
Correction signal, it is achieved that in frequency PoutLocate the amplitude correction of radio-frequency signal source output signal.
Alternatively for example,
Step 201 further includes setting residence time corresponding with correction frequency；
Step 202 is then according to the correction frequency and correction amplitude, when persistently generating resident with this in residence time
Between it is corresponding correction frequency correction output signal.
It specifically referring to, the residence time of one with the correction frequency can be arranged when setting corrects frequency in user simultaneously,
Correction output signal corresponding with the correction frequency can continue to export in the residence time, and after residence time, the correction is defeated
Signal stops output out.Because external measurement devices need to stablize the time, so passing through setting when measurement corrects output signal
Residence time can be such that the output time for correcting output signal extends, to improve external measurement devices measurement correction output signal
Amplitude accuracy.
It is the structural schematic diagram in the embodiment of the present invention for the self-correcting equipment of radiofrequency signal with reference to Fig. 3.
Self-correcting equipment described in the present embodiment can be used for being loaded into radio-frequency signal source, and radio-frequency signal source runs the correction
Device can be corrected the amplitude of its output signal.The implementation base of above-mentioned automatic correcting method and following self-correcting equipments
This is identical, therefore something in common repeats no more.
Self-correcting equipment in the present embodiment includes setup module 301, output module 302, obtains module 303, calculates mould
Block 304 and correction module 305.
Setup module 301, at least one correction frequency P to be arranged, correction amplitude A corresponding with the correction frequency P, penetrates
Frequency output frequency PoutWith radio frequency output amplitude Aout；
Output module 302, for generating correction output signal according to the correction frequency P and correction amplitude A；
Module 303 is obtained, for obtaining the reality for passing through external measurement devices 306 and measuring the obtained correction output signal
Border amplitude C；
Computing module 304 obtains compensation magnitude B for calculating actual margin C and correcting the difference of amplitude A；
Correction module 305, for according to compensation magnitude B, radio frequency output frequency PoutWith radio frequency output amplitude Aout, generation penetrates
Frequency output calibration signal.
In the present embodiment, setup module 301 are specifically used for that at least one correction frequency P is arranged, and frequently with the correction
The corresponding correction amplitude A of rate P or multiple correction amplitude As.It respectively corresponds and is corrected with the first bearing calibration and second
Method.
For the first bearing calibration, i.e., when setup module 301 for be arranged at least one correction frequency P and with the correction frequency
When the corresponding correction amplitude A of rate P,
Output module 302, for being generated respectively each according to the corresponding correction frequency P of every a pair and correction amplitude A
Centering corrects frequency P and corrects a correction output signal at amplitude A.
For second of bearing calibration, i.e., when setup module 301 for be arranged at least one correction frequency P and with the correction
When the corresponding multiple correction amplitude As of frequency A,
Output module 301, for according to each group of corresponding correction frequency P and corresponding multiple with the correction frequency P
Amplitude A is corrected, is generated respectively more at each correction amplitude A in the correction frequency P and multiple correction amplitude As in each group
A correction output signal.
For the first bearing calibration, as radio frequency output frequency PoutWhen equal to correction frequency P, correction module 305 is used for
The amplitude of radio frequency output calibration signal is set to be equal to compensation magnitude B corresponding with the correction frequency P and radio frequency output amplitude Aout's
With；
As radio frequency output frequency PoutWhen correcting any frequency between frequency equal to two, correction module 305, for making
The amplitude of radio frequency output calibration signal is equal to do linear difference with the corresponding compensation magnitude of described two correction frequencies after obtain
Range value and radio frequency output amplitude AoutSum.
For second of bearing calibration, when radio frequency output frequency is equal to correction frequency P, and radio frequency output amplitude PoutDeng
When correction amplitude A corresponding with the correction frequency P, correction module 305, for being equal to the amplitude of radio frequency output calibration signal
Compensation magnitude corresponding with the correction amplitude A and radio frequency output amplitude AoutSum；
As radio frequency output frequency PoutEqual to correction frequency P, and radio frequency output amplitude AoutEqual to corresponding with the correction frequency P
Two correction amplitudes between any amplitude when, correction module 305, for make radio frequency output calibration signal amplitude be equal to
The corresponding compensation magnitude of described two correction amplitudes does the range value and radio frequency output amplitude A obtained after linear differenceoutSum.
Alternatively for example, setup module 301, is also used to that stay corresponding with the correction frequency P is arranged
Stay the time；
Output module 302, for continuing in the residence time according to the correction frequency P and correction amplitude A
Generate the radio frequency output signal P of correction frequency corresponding with the residence timeout。
From the foregoing, it will be observed that the automatic correcting method and self-correcting equipment of the present invention for radio-frequency signal source, passes through acquisition
The actual margin of radio frequency output signal before correction acquires the setting amplitude of radio frequency output signal and the difference of its actual margin,
To obtain the error in the amplitude of specified frequency point radio frequency output signal, and then the amplitude of radio frequency output signal is compensated,
Realize the correction to the amplitude of radio frequency output signal at specified frequency point.Therefore solving in the prior art cannot be for specified
The problem of part frequency point is corrected can not only be corrected for part frequency point, and correction accuracy is high, it is easier to it operates,
Save the time.
It is the structural schematic diagram of the correction system of radiofrequency signal in the embodiment of the present invention with reference to Fig. 4.
Correction system in the present embodiment includes radio-frequency signal source 401 and power meter 402, the output end a of radio-frequency signal source
It is connect with the input terminal b of power meter, the first control port d connection of the first control port c and power meter of radio-frequency signal source.
In the present embodiment, radio-frequency signal source 401 corrects setting according to radio frequency and generates correction output signal, and defeated by its
Outlet a high-ranking officers' positive output signal is sent to power meter 402.Here radio frequency correction setting refer to for radio-frequency signal source into
The setting that row timing carries out, the setting of frequency, amplitude corrected including needs etc..Radio-frequency signal source is according to the correction of setting frequency
Rate and correction amplitude generate correction output signal.
Power meter 402 receives correction output signal by its input terminal b, and measures the amplitude of correction output signal, generates
The actual margin of output signal is corrected, and radio frequency is sent to by the actual margin of its first control terminal d high-ranking officers' positive output signal
Signal source 401,
Radio-frequency signal source 401 also receives the actual margin of correction output signal by its first control port c, and according to institute
Actual margin, radio frequency correction setting and the radio frequency output setting stated, generate radio frequency output calibration signal, in particular to radiofrequency signal
Source calculates the difference between the actual margin and correction amplitude of correction output signal, and is set according to the difference and radio frequency output
It sets, the radio frequency output signal after generating correction, i.e. radio frequency output calibration signal.Here radio frequency output setting, which refers to, believes radio frequency
The setting of the frequency and amplitude of number source output signal.The specific production method of radio frequency output calibration signal refers to above-mentioned self-correcting
Method, details are not described herein again.
In the present embodiment, the first control port d of the first control port c of radio-frequency signal source 401 and power meter 402 is
It is USB control port.
Illustrate as an example, the first control port c of radio-frequency signal source 401 and the first control terminal of power meter 402
Mouth d can use other data transmission ports.
Therefore the correction system of radiofrequency signal of the present invention, only pass through radio-frequency signal source and function meter
The amplitude correction work of part frequency point is completed, system building is simple, saves time and manpower.
Claims (9)
1. a kind of self-correcting equipment for radio-frequency signal source, which is characterized in that have with lower module:
Setup module, at least one correction frequency, correction amplitude corresponding with the correction frequency, radio frequency output frequency to be arranged
With radio frequency output amplitude；
Output module, for generating correction output signal according to the correction frequency and correction amplitude；
Module is obtained, for obtaining the actual margin of the correction output signal obtained by external measurement devices measurement；
Computing module obtains compensation magnitude for calculating actual margin and correcting the difference of amplitude；
Correction module, for generating radio frequency output calibration letter according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude
Number.
2. self-correcting equipment according to claim 1, which is characterized in that
Setup module includes: at least one corresponding with correction frequency correction amplitude of correction frequency to be arranged
At least one correction frequency, and a correction amplitude corresponding with the correction frequency or multiple correction amplitudes are set.
3. self-correcting equipment according to claim 2, which is characterized in that
Work as setup module, when at least one correction frequency and correction amplitude corresponding with the correction frequency to be arranged,
Output module, for generating correction output signal, referring to for distinguishing root according to the correction frequency and correction amplitude
According to the corresponding correction frequency of every a pair and amplitude is corrected, one correction of generation is defeated at every a pair of of correction frequency and correction amplitude
Signal out.
4. self-correcting equipment according to claim 2, which is characterized in that
Work as setup module, when at least one correction frequency and multiple correction amplitudes corresponding with the correction frequency to be arranged,
Output module, for generating correction output signal, referring to for distinguishing root according to the correction frequency and correction amplitude
According to each group of corresponding correction frequency and multiple correction amplitudes corresponding with the correction frequency, in each group of correction frequency and
Multiple correction output signals are generated at each correction amplitude in multiple correction amplitudes.
5. self-correcting equipment according to claim 3, which is characterized in that
Correction module, for obtaining radio frequency output calibration letter according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude
Number, refer to
When radio frequency output frequency is equal to correction frequency, the amplitude of radio frequency output calibration signal is equal to corresponding with the correction frequency
Compensation magnitude and radio frequency output amplitude and；
When radio frequency output frequency is equal to two any frequencies corrected between frequency, the amplitude of radio frequency output calibration signal is equal to
With the corresponding compensation magnitude of described two correction frequencies do the range value and radio frequency output amplitude obtained after linear difference and.
6. self-correcting equipment according to claim 4, which is characterized in that
Correction module, for obtaining radio frequency output calibration letter according to compensation magnitude, radio frequency output frequency and radio frequency output amplitude
Number, refer to,
When radio frequency output frequency is equal to correction frequency, and radio frequency output amplitude is equal to correction amplitude corresponding with the correction frequency
When, the amplitude of radio frequency output calibration signal be equal to compensation magnitude corresponding with the correction amplitude and radio frequency output amplitude and；
Frequency is corrected when radio frequency output frequency is equal to, and radio frequency output amplitude is equal to two corrections width corresponding with the correction frequency
When any amplitude between degree, the amplitude of radio frequency output calibration signal is equal to compensation magnitude corresponding with described two correction amplitudes
Do the range value that is obtained after linear difference and radio frequency output amplitude and.
7. self-correcting equipment according to claim 1, which is characterized in that
Setup module is also used to that residence time corresponding with the correction frequency is arranged,
Output module, for persistently generating and being somebody's turn to do in the residence time according to the correction frequency and correction amplitude
The correction output signal of the corresponding correction frequency of residence time.
8. a kind of correction system of radiofrequency signal, which is characterized in that
Including a radio-frequency signal source and a power meter,
The input terminal of the output end of radio-frequency signal source and power meter connects, the first control port of radio-frequency signal source and power meter
The connection of first control port,
Radio-frequency signal source generates correction output signal for correcting setting according to radio frequency, and passes through its output end for the correction
Output signal is sent to power meter,
Power meter is used to receive the correction output signal by its input terminal, measures the width of the correction output signal
Degree, generates the actual margin of the correction output signal, and is sent to the actual margin by its first control terminal
Radio-frequency signal source,
Radio-frequency signal source is also used to receive the actual margin by its first control port, and according to the actual web
Degree, radio frequency correction setting and radio frequency output setting, generate radio frequency output calibration signal.
9. correction system according to claim 8, which is characterized in that the first control port of the radio-frequency signal source and
First control port of the power meter is all USB control port.
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| CN108802660B (en) * | 2017-05-02 | 2021-11-16 | 北京普源精电科技有限公司 | Calibration method, device and system for ALC of radio frequency signal source |
| CN109088675B (en) * | 2017-06-13 | 2022-02-08 | 北京普源精电科技有限公司 | Channel calibration method and device for radio frequency signal source |
| CN114553330A (en) * | 2022-02-24 | 2022-05-27 | 上海创远仪器技术股份有限公司 | Compensation processing method, device, processor and storage medium for improving influence of environmental temperature on radio frequency output aiming at signal source |
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