CN107831478A - A kind of automatic marking method and system of wind profile radar echo-signal - Google Patents

A kind of automatic marking method and system of wind profile radar echo-signal Download PDF

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CN107831478A
CN107831478A CN201711041565.4A CN201711041565A CN107831478A CN 107831478 A CN107831478 A CN 107831478A CN 201711041565 A CN201711041565 A CN 201711041565A CN 107831478 A CN107831478 A CN 107831478A
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signal
echo signal
performance number
wind profile
curve
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CN107831478B (en
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赵昊
孙祥
高彬彬
郑秀明
王斯正
陈俊
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Beijing Institute of Radio Measurement
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Beijing Institute of Radio Measurement
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4052—Means for monitoring or calibrating by simulation of echoes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

The present invention relates to a kind of automatic marking method and system of wind profile radar echo-signal, this method includes：Generate the analog echo signal of different predetermined power values；All analog echo signals are sequentially input to wind profile radar detection components, handle to obtain target echo signal corresponding with each analog echo signal through wind profile radar detection components；The calibration curve of wind profile radar is obtained according to the corresponding relation of analog echo signal and target echo signal.The present invention improves the accuracy of calibration, improves the automaticity of calibration.

Description

A kind of automatic marking method and system of wind profile radar echo-signal
Technical field
The present invention relates to technical field of data processing, more particularly to a kind of auto-scaling side of wind profile radar echo-signal Method and system.
Background technology
Wind profile radar is a kind of clear sky detecting devices, can be continuous, real with high temporal resolution and spatial resolution When detect the wind speed and direction away from more than ground 3 kilometers horizontal wind and vertically-supplying air of air even in 20 kilometer ranges, and The meteorological elements such as Refractive-index-structure parameter with height distribution.The echo-signal that wind profile radar obtains is amplified and place Echo-signal after reason, the echo-signal are not directly applicable meteorological research, it is necessary to calibrate wind profile radar.It is existing Calibrating method has two kinds, and the first is calibrated using the signal-tonoise information of detection, and second is signal source Calibration Method.For First method, due to estimating signal to noise ratio in frequency domain, and signal to noise ratio is easily influenceed by circuit parasitic concussion and outside accidental interference, So the error of calibration is larger.For second method, it is the analog echo signal needed by the transmitting of manual control signal source, deposits Automaticity is low and manpower consumption is serious the problem of；And only to analog echo signal and target echo with linear relationship Signal generation calibration curve, the problem of calibration accuracy difference be present.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided a kind of wind profile radar echo letter Number automatic marking method and system.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of auto-scaling of wind profile radar echo-signal Method, including：
Generate the analog echo signal of different predetermined power values；
All analog echo signals are sequentially input to wind profile radar detection components, examined through the wind profile radar Component is surveyed to handle to obtain target echo signal corresponding with each analog echo signal；
The calibration of wind profile radar is obtained according to the corresponding relation of the analog echo signal and the target echo signal Curve.
The beneficial effects of the invention are as follows：By generating the analog echo signal of different predetermined power values, so as to automatically generate The analog echo signal needed, avoid cost of labor caused by the analog echo signal that manual operation needed and time into The problem of this increase, analog echo signal is inputted to wind profile radar detection components, target echo signal is obtained through processing, Calibration curve is obtained according to the corresponding relation of analog echo signal and target echo signal, so as to automatically generate calibration curve, carried The high automaticity of calibration, completes real-time calibration.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of wind profile radar echo-signal it is automatic Scaling system, including analogue echoes module, detection module and scaling module；
The analogue echoes module is used for the analog echo signal for generating different predetermined power values；
The detection module is used to sequentially input all analog echo signals to wind profile radar detection components, warp The wind profile radar detection components handle to obtain target echo signal corresponding with each analog echo signal；
The scaling module is used to be obtained according to the corresponding relation of the analog echo signal and the target echo signal The calibration curve of wind profile radar.
The beneficial effects of the invention are as follows：By generating the analog echo signal of different predetermined power values, so as to automatically generate The analog echo signal needed, avoid cost of labor caused by the analog echo signal that manual operation needed and time into The problem of this increase, analog echo signal is inputted to wind profile radar detection components, target echo signal is obtained through processing, Calibration curve is obtained according to the corresponding relation of analog echo signal and target echo signal, so as to automatically generate calibration curve, carried The high automaticity of calibration, completes real-time calibration.
Brief description of the drawings
Fig. 1 is that a kind of flow of the automatic marking method for wind profile radar echo-signal that one embodiment of the invention provides is shown It is intended to；
Fig. 2 is a kind of flow of the automatic marking method for wind profile radar echo-signal that another embodiment of the present invention provides Schematic diagram；
Fig. 3 is that a kind of structure of the automatic scaling system for wind profile radar echo-signal that one embodiment of the invention provides is shown It is intended to；
Fig. 4 is a kind of structure of the automatic scaling system for wind profile radar echo-signal that another embodiment of the present invention provides Schematic diagram.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
At present, wind profile radar produces pumping signal, and pumping signal is transmitted into air, and wind profile radar is to passing through The pumping signal of air is handled, and obtains wind profile radar echo-signal, and wind profile radar echo-signal can not be applied directly In meteorological research.Wind profile radar is calibrated according to methods described of the embodiment of the present invention, obtains the calibration of wind profile radar Curve, can be obtained according to the calibration curve of wind profile radar and wind profile radar echo-signal, which can directly apply to meteorology, grinds The signal studied carefully.
As shown in figure 1, a kind of automatic marking method of wind profile radar echo-signal provided in an embodiment of the present invention, bag Include：
S1, generate the analog echo signal of different predetermined power values.
S2, all analog echo signals are sequentially input to wind profile radar detection components, through wind profile radar detection group Part handles to obtain target echo signal corresponding with each analog echo signal.
S3, the calibration curve of wind profile radar is obtained according to the corresponding relation of analog echo signal and target echo signal.
A kind of automatic marking method of wind profile radar echo-signal provided in an embodiment of the present invention, it is different pre- by generating If the analog echo signal of performance number, so as to automatically generate the analog echo signal of needs, avoid what manual operation was needed The problem of increase of cost of labor and time cost caused by analog echo signal, analog echo signal is inputted to Wind outline Detections of radar component, target echo signal is obtained through processing, according to analog echo signal and the corresponding relation of target echo signal Calibration curve is obtained, so as to automatically generate calibration curve, the automaticity of calibration is improved, completes real-time calibration.
Alternatively, in the embodiment of the present invention, S1 includes：
The radiofrequency signal of constant power is produced by wind profile radar built-in signal source, radiofrequency signal passes through controllable attenuation network The analog echo signal of different predetermined power values is generated according to different default attenuation degrees.
Specifically, the frequency of the radiofrequency signal of constant power is consistent with the frequency of wind profile radar institute transmission signal, so Wind profile radar can be made to handle the analog echo signal of generation.The frequency of all analog echo signals is identical, Power is different, and signal kinds are radio frequency.
The present embodiment is illustrated with a specific example below：10 dBms are produced by wind profile radar built-in signal source (dBm) radiofrequency signal, controllable attenuation network are 0.5 decibel (dB) according to step units, and attenuation range is 0dB to 170dB, point Other that the radiofrequency signal is decayed, it is 0.5dB to obtain step units, and the simulation that performance number scope is 10dBm to -160dBm is returned Ripple signal.
In above-described embodiment, the radiofrequency signal of constant power, controllable attenuation are produced by wind profile radar built-in signal source Network is decayed according to the default attenuation degree of difference to radiofrequency signal, generates the analog echo signal of different predetermined power values, The analog echo signal of needs is automatically generated, avoids the cost of labor caused by the analog echo signal that manual operation needed The problem of with the increase of time cost.
Alternatively, in the embodiment of the present invention, S2 includes：
All analog echo signals are sequentially input to wind profile radar detection components, entered through wind profile radar detection components Row amplification, filtering, mixing and signal transacting, target echo signal corresponding with each analog echo signal is obtained, and calculated every The performance number of individual target echo signal.
Specifically, wind profile radar detection components can include receiving front-end, receiver and signal processor etc..Will be all Analog echo signal is sequentially input to receiving front-end, the amplification of received front end and filtering process, the Frequency mixing processing of received machine, The signal through Frequency mixing processing is changed into frequency domain from time domain from signal processor, and carries out analog-to-digital conversion, obtains and each simulates back Target echo signal corresponding to ripple signal, and calculate by signal processor the performance number of each target echo signal.
The present embodiment is illustrated with a specific example below：All analog echo signals include analog echo signal 1, simulated back Ripple signal 2 and analog echo signal 3, analog echo signal 1, analog echo signal 2 and analog echo signal 3 are inputted wide to wind Line detections of radar component, is amplified through wind profile radar detection components, filters, being mixed and signal transacting, obtains and simulates back Target echo signal 1 corresponding to ripple signal 1, target echo signal 2 corresponding with analog echo signal 2, and believe with analogue echo Number target echo signal 3 corresponding to 3, and calculate the performance number of target echo signal 1, the performance number of target echo signal 2 and mesh Mark the performance number of echo-signal 3.
In above-described embodiment, by the way that all analog echo signals are sequentially input to wind profile radar detection components, through putting Greatly, filtering, mixing and signal transacting, obtain target echo signal corresponding with each analog echo signal, improve target and return The relevance of ripple signal and wind profile radar, avoid not considering the problem of loss of wind profile radar causes calibration error big, carry The high accuracy of calibration.The performance number of each target echo signal is calculated, determines therefrom that target echo signal and analogue echo The corresponding relation of signal, so as to complete to calibrate.
Alternatively, as shown in Fig. 2 in the embodiment of the present invention, S3 includes：
S31, judges whether the performance number of performance number target echo signal corresponding with its of each analog echo signal has Wired sexual intercourse.
Specifically, the performance number of each analog echo signal and target echo corresponding with each analog echo signal are judged Whether the performance number of signal has linear relationship.
S32, generated according to the performance number of the analog echo signal with linear relationship and the performance number of target echo signal First curve, the performance number and target of the analog echo signal without linear relationship are returned using index mapping least square method The performance number of ripple signal is handled, and obtains the second curve.
Specifically, the performance number and target of the analog echo signal with linear relationship are returned using linear least square The performance number of ripple signal is handled, and obtains the first curve, and the first curve is straight line.
S33, the first curve and the second curve are fitted, obtain the calibration curve of wind profile radar.
In above-described embodiment, pass through the performance number to the analog echo signal with linear relationship and target echo signal Performance number generates the first curve, the power of performance number and target echo signal to the analog echo signal without linear relationship Value the second curve of generation, avoids the problem of rejecting the calibration error caused by the signal without linear relationship, bent by first Line and the second curve matching obtain calibration curve, it is established that the connection of the corresponding target echo signal of each analog echo signal System, improve the accuracy of calibration.
Alternatively, in the embodiment of the present invention, the simulation without linear relationship is returned using index mapping least square method The performance number of ripple signal and the performance number of target echo signal are handled, and obtaining the second curve includes：
Exponential quantity is obtained successively from the exponential quantity prestored, and according to the exponential quantity of acquisition to without linear relationship The performance number of target echo signal carries out exponential transform, performance number after exponential transform is carried out and the mould without linear relationship When intending the performance number matching of echo-signal, then linear relation is generated according to matching relationship, logarithm change is carried out to linear relation Change, obtain the second curve.
Specifically, the exponential quantity prestored can determine according to the parameter of wind profile radar.And the index prestored The quantity of value is limited, so then avoids the problem of can not generating linear relation.
In addition, if default attenuation degree includes low attenuation degree and highly attenuating degree, for without linear relationship All analog echo signals, according to the second curve obtained by analog echo signal corresponding to highly attenuating degree, with being declined according to low The second curve subtracted obtained by analog echo signal corresponding to degree is identical, as long as thus generating the feelings of the first curve Second curve is generated under condition can be fitted to obtain the calibration curve of wind profile radar.The low attenuation degree and highly attenuating degree It is for attenuation degree corresponding to the analog echo signal with linear relationship, has linearly when attenuation degree is less than Then it is low attenuation degree corresponding to the analog echo signal of relation during attenuation degree, there is linear relationship when attenuation degree is higher than Analog echo signal corresponding to attenuation degree when, then be highly attenuating degree.
Exponential quantity can be according to sequential storage from small to large or according to sequential storage from big to small, consecutive indexing value Between difference be default value, the default value can be 0.2.Obtaining exponential quantity successively from the exponential quantity prestored can wrap Include：According to the numerical value order from small to large of exponential quantity exponential quantity is obtained successively or according to exponential quantity from the exponential quantity prestored Numerical value order from big to small obtain exponential quantity etc. successively from the exponential quantity prestored.
The present embodiment is illustrated with a specific example below：
Exponential quantity i is obtained successively from the exponential quantity prestored, according to the exponential quantity i of acquisition to without linear relationship The performance number b of target echo signal carries out exponential transform, and its expression formula can include：eib。
Performance number e after exponential transform is carried outibThere is the relation of linear matched with the performance number a of analog echo signal When, linear relation is generated according to matching relationship, linear relation can include：eib=Aa+B.
Logarithmic transformation is carried out to linear relation, its expression formula can include：B=ln (Aa+B)/i, according to b=ln (Aa+ B)/i obtains the second curve, so as to establish the relation of target echo signal and analog echo signal.
Wherein, b is the performance number of target echo signal, and i is the exponential quantity obtained, and a is corresponding with target echo signal The performance number of analog echo signal, A and B are constants.
In above-described embodiment, exponential transform is carried out to the performance number of target echo signal by different exponential quantities, works as finger When performance number after transformation of variables matches with the performance number of the analog echo signal without linear relationship, according to matching relationship and right Transformation of variables, the second curve is obtained, have found contacting for the analog echo signal without linear relationship and target echo signal, keep away The problem of having exempted to reject the calibration error caused by the signal without linear relationship, improve the accuracy of calibration.
As shown in figure 3, a kind of automatic scaling system of wind profile radar echo-signal provided in an embodiment of the present invention, including Analogue echoes module, detection module and scaling module.
Analogue echoes module is used for the analog echo signal for generating different predetermined power values.
Detection module is used to sequentially input all analog echo signals to wind profile radar detection components, through Wind outline thunder Handle to obtain target echo signal corresponding with each analog echo signal up to detection components.
Scaling module is used to obtain wind profile radar according to the corresponding relation of analog echo signal and target echo signal Calibration curve.
A kind of automatic scaling system of wind profile radar echo-signal provided in an embodiment of the present invention, it is different pre- by generating If the analog echo signal of performance number, so as to automatically generate the analog echo signal of needs, avoid what manual operation was needed The problem of increase of cost of labor and time cost caused by analog echo signal, analog echo signal is inputted to Wind outline Detections of radar component, target echo signal is obtained through processing, according to analog echo signal and the corresponding relation of target echo signal Calibration curve is obtained, so as to automatically generate calibration curve, the automaticity of calibration is improved, completes real-time calibration.
Alternatively, as shown in figure 4, in the embodiment of the present invention, analogue echoes module includes being built in the letter of wind profile radar Number source and controllable attenuation network.
Signal source is used for the radiofrequency signal for producing constant power.
Controllable attenuation network is used for the mould that radiofrequency signal is generated to different predetermined power values according to different default attenuation degrees Intend echo-signal.
In above-described embodiment, the radiofrequency signal of constant power, controllable attenuation are produced by wind profile radar built-in signal source Network is decayed according to the default attenuation degree of difference to radiofrequency signal, generates the analog echo signal of different predetermined power values, The analog echo signal of needs is automatically generated, avoids the cost of labor caused by the analog echo signal that manual operation needed The problem of with the increase of time cost.
Alternatively, as shown in figure 4, in the embodiment of the present invention, detection module is specifically used for：
All analog echo signals are sequentially input to wind profile radar detection components, entered through wind profile radar detection components Row amplification, filtering, mixing and signal transacting, target echo signal corresponding with each analog echo signal is obtained, and calculated every The performance number of individual target echo signal.
In above-described embodiment, by the way that all analog echo signals are sequentially input to wind profile radar detection components, through putting Greatly, filtering, mixing and signal transacting, obtain target echo signal corresponding with each analog echo signal, improve target and return The relevance of ripple signal and wind profile radar, avoid not considering the problem of loss of wind profile radar causes calibration error big, carry The high accuracy of calibration.The performance number of each target echo signal is calculated, determines therefrom that target echo signal and analogue echo The corresponding relation of signal, so as to complete to calibrate.
Alternatively, as shown in figure 4, in the embodiment of the present invention, scaling module includes judge module, the first curve generation mould Block, the second curve generation module and fitting module.
Judge module is used for the power for judging performance number target echo signal corresponding with its of each analog echo signal Whether value has linear relationship, is to call the first curve generation module, otherwise calls the second curve generation module.
First curve generation module is used for performance number and target echo according to the analog echo signal with linear relationship The performance number of signal generates the first curve.
Second curve generation module is used for using index mapping least square method to the analogue echo without linear relationship The performance number of signal and the performance number of target echo signal are handled, and obtain the second curve.
Fitting module is used to the first curve and the second curve being fitted, and obtains the calibration curve of wind profile radar.
In above-described embodiment, pass through the performance number to the analog echo signal with linear relationship and target echo signal Performance number generates the first curve, the power of performance number and target echo signal to the analog echo signal without linear relationship Value the second curve of generation, avoids the problem of rejecting the calibration error caused by the signal without linear relationship, bent by first Line and the second curve matching obtain calibration curve, it is established that the connection of the corresponding target echo signal of each analog echo signal System, improve the accuracy of calibration.
Alternatively, in the embodiment of the present invention, the second curve generation module is specifically used for：
Exponential quantity is obtained successively from the exponential quantity prestored, and according to the exponential quantity of acquisition to without linear relationship The performance number of target echo signal carries out exponential transform, performance number after exponential transform is carried out and the mould without linear relationship When intending the performance number matching of echo-signal, then linear relation is generated according to matching relationship, logarithm change is carried out to linear relation Change, obtain the second curve.
In above-described embodiment, exponential transform is carried out to the performance number of target echo signal by different exponential quantities, works as finger When performance number after transformation of variables matches with the performance number of the analog echo signal without linear relationship, according to matching relationship and right Transformation of variables, the second curve is obtained, have found contacting for the analog echo signal without linear relationship and target echo signal, keep away The problem of having exempted to reject the calibration error caused by the signal without linear relationship, improve the accuracy of calibration.
Function performed by each module of the system a kind of wind profile radar echo-signal of above-described embodiment from Have been described in detail in dynamic calibrating method, repeat no more here.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. automatic marking method of wind profile radar echo-signal, it is characterised in that including：
    Generate the analog echo signal of different predetermined power values；
    All analog echo signals are sequentially input to wind profile radar detection components, through the wind profile radar detection group Part handles to obtain target echo signal corresponding with each analog echo signal；
    The calibration curve of wind profile radar is obtained according to the corresponding relation of the analog echo signal and the target echo signal.
  2. 2. according to the method for claim 1, it is characterised in that the analog echo signal for generating different predetermined power values Including：
    The radiofrequency signal of constant power is produced by wind profile radar built-in signal source, the radiofrequency signal passes through controllable attenuation network The analog echo signal of different predetermined power values is generated according to different default attenuation degrees.
  3. 3. according to the method for claim 1, it is characterised in that it is described by all analog echo signals sequentially input to Wind profile radar detection components, handle to obtain mesh corresponding with each analog echo signal through the wind profile radar detection components Mark echo-signal includes：
    All analog echo signals are sequentially input to wind profile radar detection components, through the wind profile radar detection group Part is amplified, filtered, being mixed and signal transacting, obtains target echo signal corresponding with each analog echo signal, and count Calculate the performance number of each target echo signal.
  4. 4. according to the method for claim 3, it is characterised in that described to be returned according to the analog echo signal and the target The calibration curve that the corresponding relation of ripple signal obtains wind profile radar includes：
    Whether judge the performance number of performance number target echo signal corresponding with its of each analog echo signal has linear close System, it is then bent according to the performance number of the analog echo signal with linear relationship and the performance number of target echo signal generation first Line, the otherwise performance number and target echo using index mapping least square method to the analog echo signal without linear relationship The performance number of signal is handled, and obtains the second curve；
    First curve and second curve are fitted, obtain the calibration curve of the wind profile radar.
  5. 5. according to the method for claim 4, it is characterised in that described to use index mapping least square method to without line The performance number of the analog echo signal of sexual intercourse and the performance number of target echo signal are handled, and obtaining the second curve includes：
    Exponential quantity is obtained successively from the exponential quantity prestored, and according to the exponential quantity of acquisition to the target without linear relationship The performance number of echo-signal carries out exponential transform, and performance number after exponential transform is carried out is returned with the simulation without linear relationship During the performance number matching of ripple signal, then linear relation is generated according to matching relationship, logarithm change is carried out to the linear relation Change, obtain second curve.
  6. 6. a kind of automatic scaling system of wind profile radar echo-signal, it is characterised in that including analogue echoes module, detection mould Block and scaling module；
    The analogue echoes module is used for the analog echo signal for generating different predetermined power values；
    The detection module is used to sequentially input all analog echo signals to wind profile radar detection components, through described Wind profile radar detection components handle to obtain target echo signal corresponding with each analog echo signal；
    The scaling module is used to obtain wind exterior feature according to the corresponding relation of the analog echo signal and the target echo signal The calibration curve of line radar.
  7. 7. system according to claim 6, it is characterised in that the analogue echoes module includes being built in wind profile radar Signal source and controllable attenuation network；
    The signal source is used for the radiofrequency signal for producing constant power；
    The controllable attenuation network is used to the radiofrequency signal generating different predetermined power values according to the default attenuation degree of difference Analog echo signal.
  8. 8. system according to claim 6, it is characterised in that the detection module is specifically used for：
    All analog echo signals are sequentially input to wind profile radar detection components, through the wind profile radar detection group Part is amplified, filtered, being mixed and signal transacting, obtains target echo signal corresponding with each analog echo signal, and count Calculate the performance number of each target echo signal.
  9. 9. system according to claim 8, it is characterised in that the scaling module includes judge module, the first curve is given birth to Into module, the second curve generation module and fitting module；
    The judge module is used for the power for judging performance number target echo signal corresponding with its of each analog echo signal Whether value has linear relationship, is to call the first curve generation module, otherwise calls the second curve generation module；
    The first curve generation module is used for performance number and target echo according to the analog echo signal with linear relationship The performance number of signal generates the first curve；
    The second curve generation module is used for using index mapping least square method to the analogue echo without linear relationship The performance number of signal and the performance number of target echo signal are handled, and obtain the second curve；
    The fitting module is used to first curve and second curve being fitted, and obtains the wind profile radar Calibration curve.
  10. 10. system according to claim 9, it is characterised in that the second curve generation module is specifically used for：
    Exponential quantity is obtained successively from the exponential quantity prestored, and according to the exponential quantity of acquisition to the target without linear relationship The performance number of echo-signal carries out exponential transform, and performance number after exponential transform is carried out is returned with the simulation without linear relationship During the performance number matching of ripple signal, then linear relation is generated according to matching relationship, logarithm change is carried out to the linear relation Change, obtain second curve.
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