CN105974347B - A kind of calibration method and system of test macro - Google Patents
A kind of calibration method and system of test macro Download PDFInfo
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- CN105974347B CN105974347B CN201610585874.7A CN201610585874A CN105974347B CN 105974347 B CN105974347 B CN 105974347B CN 201610585874 A CN201610585874 A CN 201610585874A CN 105974347 B CN105974347 B CN 105974347B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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Abstract
The provided by the present invention calibration method and system of a kind of test macro, source signal is input to the system input of the test macro by the method control signal source, and the source signal is input in power amplifier device by the measured device input terminal of the test macro, the power amplifier device generates amplified signal after amplifying processing to the source signal;Measuring equipment reads the first output signal in the system output of the test macro, according to the source signal, the nominal Value Data of first output signal and the power amplifier device, the first insertion loss data of the test macro are calculated, and high-power calibration is carried out to the test macro according to the first insertion loss data.Therefore the embodiment of the present invention can it is high-power it is lower test macro is calibrated, and then the measurement data under the high-power state of available measured device.
Description
Technical field
The present invention relates to automatic test technology field more particularly to the calibration methods and system of a kind of test macro.
Background technique
Microwave device needs to carry out before use the detection of device parameters.It in the prior art, is by test macro to quilt
Survey what device was detected, and test macro can have detection error in the detection due to insertion loss of instrument etc., because
This, needs to calibrate test macro before using test macro.
In existing calibration method and system to test macro, the input of source signal is provided using measuring instrument, by surveying
After test system, the test of the data such as insertion loss is carried out using measuring instruments such as power meter or frequency spectrographs, by insertion loss etc.
Data are as calibration data, and test macro will calibrate data correction when detecting measured device into testing result, to export
The accurate measurement data of measured device.
In actual use, working condition of the measured device under high-power and small-power is different, and the prior art
In due to the power of source signal it is smaller, the calibration of small-power test can only be carried out to test macro, therefore can only be reflected tested
Measurement data of the device under small-power state, but measurement number of the measured device under high-power state cannot be accurately reflected
According to.
Summary of the invention
The present invention provides a kind of calibration method of test macro and system, in order to it is high-power it is lower to test macro into
Row calibration, and then can accurately obtain the measurement data under the high-power state of measured device.
The calibration method of a kind of test macro provided by the invention, for being calibrated to test macro, comprising:
Source signal is input to the system input of the test macro by control signal source, and passes through the test macro
The source signal is input in power amplifier device by measured device input terminal;The power amplifier device is used to believe the source
Amplified signal is generated after number amplifying processing;
The power amplifier device is amplified the amplified signal generated after processing to the source signal to be input to
The measured device output end of the test macro, and measuring equipment reads first in the system output of the test macro
Output signal;
According to the source signal, the nominal Value Data of first output signal and the power amplifier device, institute is calculated
The first insertion loss data of test macro are stated, and big function is carried out to the test macro according to the first insertion loss data
Rate calibration.
Preferably, described according to the source signal, the nominal value of first output signal and the power amplifier device
Data calculate the first insertion loss data of the test macro, comprising:
It controls the signal source source signal is input in the power amplifier device, by the power amplifier device
The amplified signal generated after processing is amplified to the source signal to be input in attenuator, and controls the measuring instrument
Read the first deamplification of the attenuator output;
According to route insertion loss data, the decaying Value Data of the attenuator, the source signal and first decaying
Signal calculates the nominal Value Data of the power amplifier device;
According to first output signal and the nominal Value Data, the first insertion loss number of the test macro is calculated
According to.
Preferably, described according to route insertion loss data, the decaying Value Data of the attenuator, the source signal and institute
The first deamplification is stated, the nominal Value Data of the power amplifier device is calculated, comprising:
It controls the signal source source signal is input in the measuring instrument, and controls the measuring instrument and read
Measuring signal calculates the route insertion loss data according to the source signal and the measuring signal;
It controls the signal source source signal is input in the attenuator, and controls the measuring instrument and read institute
The second deamplification for stating attenuator output, according to the source signal, the route insertion loss data and second decaying
Signal calculates the decaying Value Data of the attenuator;
According to the route insertion loss data, the decaying Value Data, the source signal and first deamplification,
Calculate the nominal Value Data of the power amplifier device.
Preferably, further includes:
The system input that the source signal is input to the test macro by the signal source is controlled, and controls institute
It states measuring instrument and reads the second output signal in the measured device input terminal;
According to the source signal, the route insertion loss data and second output signal, the test system is calculated
The front end insertion loss data of system.
Preferably, further includes:
Source signal is input to the system input of the test macro by control signal source, and is by the test
The source signal is input to the measured device output end of the test macro by the measured device input terminal of system, and is controlled
Measuring instrument processed reads third output signal in the system output of the test macro;
According to the source signal, the third output signal and the front end insertion loss data, the test system is calculated
Second insertion loss data of system, and small-power calibration is carried out to the test macro according to the second insertion loss data.
Another aspect of the present invention discloses a kind of calibration system of test macro, for calibrating to test macro, wraps
It includes:
First input module is input to the system input of the test macro for controlling signal source for source signal, and
The source signal is input in power amplifier device by the measured device input terminal of the test macro;The power amplification
Device is used to generate amplified signal after amplifying processing to the source signal;
Detection module, for by the power amplifier device to the source signal amplify processing after generate described in put
Big signal is input to the measured device output end of the test macro, and measuring equipment is defeated in the system of the test macro
Outlet reads the first output signal;
First computing module, for according to the source signal, first output signal and the power amplifier device
Nominal Value Data calculates the first insertion loss data of the test macro, and according to the first insertion loss data to institute
It states test macro and carries out high-power calibration.
Preferably, the computing module includes:
The source signal is input in the power amplifier device by input unit for controlling the signal source, by institute
It states the amplified signal that generates after power amplifier device amplifies processing to the source signal to be input in attenuator, and controls
Make the first deamplification that the measuring instrument reads the attenuator output;
First computing unit, for being believed according to the decaying Value Data of route insertion loss data, the attenuator, the source
Number and first deamplification, calculate the nominal Value Data of the power amplifier device;
Second computing unit, for calculating the test system according to first output signal and the nominal Value Data
First insertion loss data of system.
Preferably, first computing unit includes:
The source signal is input in the measuring instrument by the first computation subunit for controlling the signal source, and
It controls the measuring instrument and reads measuring signal, the route insertion loss is calculated according to the source signal and the measuring signal
Data;
The source signal is input in the attenuator for controlling the signal source, and controls by the second computation subunit
The second deamplification that the measuring instrument reads the attenuator output is made, according to the source signal, route insertion damage
Consumption data and second deamplification calculate the decaying Value Data of the attenuator;
Third computation subunit, for according to the route insertion loss data, the decaying Value Data, the source signal
With first deamplification, the nominal Value Data of the power amplifier device is calculated.
Preferably, further includes:
Second input module is input to the system of the test macro for controlling the signal source for the source signal
System input terminal, and control the measuring instrument and read the second output signal in the measured device input terminal;
Second computing module, for being believed according to the source signal, the route insertion loss data and second output
Number, calculate the front end insertion loss data of the test macro.
Preferably, further includes:
Third input module inputs the system that source signal is input to the test macro for controlling signal source
End, and the source signal is input to described in the test macro by the measured device input terminal of the test macro
Measured device output end, and measuring equipment reads third output signal in the system output of the test macro;
Third computing module, for according to the source signal, the third output signal and the front end insertion loss number
According to calculating the second insertion loss data of the test macro, and be to the test according to the second insertion loss data
System carries out small-power calibration.
By above-mentioned technical proposal it is found that the provided by the present invention calibration method and system of a kind of test macro, described
Source signal is input to the system input of the test macro by method control signal source, and passes through the tested of the test macro
The source signal is input in power amplifier device by device input, and the power amplifier device puts the source signal
Amplified signal is generated after big processing;Measuring equipment reads the first output signal in the system output of the test macro,
According to the source signal, the nominal Value Data of first output signal and the power amplifier device, the test system is calculated
First insertion loss data of system, and high-power calibration is carried out to the test macro according to the first insertion loss data.
Therefore the embodiment of the present invention can it is high-power it is lower test macro is calibrated, and then the high-power shape of available measured device
Measurement data under state.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of flow chart of the calibration method of test macro disclosed by the embodiments of the present invention;
Fig. 2 is the environment architecture schematic diagram when embodiment of the present invention carries out high-power calibration to test macro;
Fig. 3 is a kind of another flow chart of the calibration method of test macro disclosed by the embodiments of the present invention;
Fig. 4 is a kind of another flow chart of the calibration method of test macro disclosed by the embodiments of the present invention;
Fig. 5 is a kind of structural schematic diagram of the calibration system of test macro disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Before introducing specific implementation of the invention, realization principle of the invention is introduced first, and the present invention adopts
It is connected to measuring instrument after power amplifier device and test macro with signal source output source signal, is measured after calculating
The insertion loss data of test system, therefore, using insertion loss data to being calibrated to test macro after, test can be passed through
System obtains measurement data of the measured device under high-power state.In the following, the scheme to the application is specifically introduced.
Fig. 1 is a kind of flow chart of the calibration method of test macro provided in an embodiment of the present invention.
Referring to Fig. 1, a kind of calibration method of test macro provided by the invention, comprising:
Source signal is input to the system input of the test macro, and passes through the test by S101, control signal source
The source signal is input in power amplifier device by the measured device input terminal of system;The power amplifier device is used for institute
It states after source signal amplifies processing and generates amplified signal;
In the embodiment of the present invention, test macro is the system for measurement device item data, in test macro, includes
System input, system output, measured piece input terminal, measured piece output end.Due to factors such as insertion loss, test is being used
It before system measures the components such as microwave device, needs to calibrate test macro, that is, essence is measured to test macro
The error correction of degree.After calibrating to test macro, measured device is connected to measured piece input and measured piece output end,
Using the data of test macro measurement measured device, the measurement data of measured device is obtained.
Measuring instrument in the embodiment of the present application can be the equipment that power meter or frequency spectrograph etc. read signal, can be generated
The standard radio frequency signal used is calibrated, as test signal source.
In this step, test cable is connected to the system input of test macro by signal source first, by tested system
The output end of system is connected to measuring instrument, and the input terminal of power amplifier device is connected with measured piece input terminal, power amplification
The output end of device is connected with measured piece output end.
The effect of power amplifier device is to generate amplified signal after source signal is amplified processing, and by amplified signal
Back in test macro.Certainly, known power amplification device can be used in power amplifier device used herein, only
Play the role of amplified signal.
In actual use, signal source, power amplifier device, test macro and measuring instrument all also with control computer
It is connected, control computer exports source signal using software control signals source.In actual use, need to open power amplification dress
The power supply set makes power amplifier device that can work with normal power-up.
S102, the power amplifier device is amplified into processing to the source signal after the amplified signal that generates it is defeated
Enter the measured device output end to the test macro, and measuring equipment is read in the system output of the test macro
First output signal;
In this step, the system of measuring instrument read test system exports the first exported output signal, due to source
Signal is exaggerated processing by power amplifier device, and therefore, what is read at this time is the output in high-power lower test macro
Signal.
In actual use, control computer controlled measurement instrument reads the first output signal, and is saved.
S103, according to the source signal, the nominal Value Data of first output signal and the power amplifier device, meter
The first insertion loss data of the test macro are calculated, and the test macro is carried out according to the first insertion loss data
High-power calibration.
In this step, according to source signal, the first output signal, power amplifier device nominal Value Data, can calculate
First insertion loss data of test macro out.Wherein, the nominal Value Data of power amplifier device is pre-stored data, false
It is set as A;It can correspond to obtain the first output data C according to source signal 0 and the first output signal B, wherein C=0-B.Then it uses
Nominal Value Data subtracts the first output data and uses A-C, so that it may obtain the first insertion loss data of test macro.So
Afterwards, test macro is calibrated according to the first insertion loss data.
In actual use, control computer also saves the first insertion loss data.
Source signal is input to by a kind of calibration method of test macro provided by the present invention, the method control signal source
The system input of the test macro, and be input to the source signal by the measured device input terminal of the test macro
In power amplifier device, the power amplifier device generates amplified signal after amplifying processing to the source signal;Control is surveyed
Measuring appratus reads the first output signal in the system output of the test macro, according to the source signal, first output
The nominal Value Data of signal and the power amplifier device, calculates the first insertion loss data of the test macro, and according to
The first insertion loss data carry out high-power calibration to the test macro.Therefore the embodiment of the present invention can be high-power
Under test macro is calibrated, and then the measurement data under the high-power state of available measured device.
Calibration for the clearer workflow for illustrating the embodiment of the present application alignment method, in the embodiment of the present application
In actual use, referring to fig. 2, Fig. 2 is the embodiment of the present invention to test to the flow direction of the connection type of hardware and signal to method
System carries out environment architecture schematic diagram when high-power calibration.
Refering to what is shown in Fig. 2, control computer is filled with signal source, test macro, power amplification respectively in hardware connection
It sets, measuring instrument is connected using corresponding connecting line.Signal source is connected with the system input of test macro, test macro
System output be connected with the input terminal of measuring instrument, the measured piece input terminal and measured piece output end in test macro it
Between be provided with power amplifier device.
Wherein, test macro is the system calibrated.Quilt in use, test macro is being carried out to test macro
It surveys part input terminal and measured piece input terminal is used to connect measured device, when calibrating test macro, then be not connected to be tested
Device.
In signal flow, using the embodiment of the present application calibration method when, control computer control signal source output source
Signal is output to the input terminal of power amplifier device, control meter from measured piece input terminal via the system input of test macro
Calculation machine controls the work in power amplifier device channel, and passes through the output end of the power amplifier device source that will amplify that treated
Signal is output to measured piece output end, and control computer controls test macro switch operating channel, exported by system output
To the input terminal of measurement device, the reading of measuring instrument output port is read by control computer.Complete the process of calibration method.
Since the nominal Value Data of pre-stored power amplifier device is possible to inaccurately in actual use,
In order to guarantee power amplifier device nominal Value Data accuracy, while in order to determine that power amplifier device can normal work
Make, the present invention on the basis of the above embodiments, also measures the nominal Value Data of power amplifier device.
The nominal Value Data of power amplifier device, above-mentioned steps S103 are specifically included in order to obtain:
It controls the signal source source signal is input in the power amplifier device, by the power amplifier device
The amplified signal generated after processing is amplified to the source signal to be input in attenuator, and controls the measuring instrument
Read the first deamplification of the attenuator output;
According to route insertion loss data, the decaying Value Data of the attenuator, the source signal and first decaying
Signal calculates the nominal Value Data of the power amplifier device;
According to first output signal and the nominal Value Data, the first insertion loss number of the test macro is calculated
According to;
And high-power calibration is carried out to the test macro according to the first insertion loss data.
In the embodiment of the present invention, when calculating the nominal Value Data of power amplifier device, need attenuator and power amplification
Device is attached, and it is defeated that the power amplifier device is amplified to the amplified signal generated after processing to the source signal
Enter into attenuator.Attenuator is played the role of being that high-power signal is decayed to small signal in the present invention, protection
Instrument makes it from being damaged.The output end of measuring instrument and attenuator is connected, the first decaying after attenuator is read
Signal.The corresponding data of first deamplification are exactly the working loss data in high-power lower attenuator.
Then according to route insertion loss data, the decaying Value Data of the attenuator, the source signal and described first
Deamplification calculates the nominal Value Data of the power amplifier device.Wherein, route insertion loss data are to carry out in advance
The data of storage, in particular to the route insertion loss data of signal source connection cables.The decaying Value Data of attenuator is preparatory
The data of storage.According to source signal 0 and the first deamplification D available second output data E, i.e. 0-D=E.Use second
Output data subtracts the nominal Value Data A of route insertion loss data and the available power amplifier device of Value Data of decaying, and
It is stored.
In actual use, power amplifier device has 1-n channel, control computer control signal source output data source letter
Number into power amplifier device, the channel for then controlling power amplifier device is switched over, and according to the difference of TCH test channel, will be believed
Number source output terminal connects corresponding TCH test channel, is sequentially completed the nominal Value Data in each channel of power amplifier device, and store phase
The data answered.
Certainly, in the above-described embodiments, when reading the first output signal, and power amplifier device is controlled from channel 1-n
The corresponding output signal in each channel is obtained after output data respectively, and nominal with each channel of power amplifier device respectively
Value Data carries out operation, obtains the insertion loss data of test macro.
In the embodiment of the present application, the decaying Value Data of route insertion loss data and attenuator can also equally pass through survey
Examination obtains.
Preferably, described according to route insertion loss data, the decaying Value Data of the attenuator, the source signal and institute
The first deamplification is stated, the nominal Value Data of the power amplifier device is calculated, comprising:
It controls the signal source source signal is input in the measuring instrument, and controls the measuring instrument and read
Measuring signal calculates the route insertion loss data according to the source signal and the measuring signal;
It controls the signal source source signal is input in the attenuator, and controls the measuring instrument and read institute
The second deamplification for stating attenuator output, according to the source signal, the route insertion loss data and second decaying
Signal calculates the decaying Value Data of the attenuator;
According to the route insertion loss data, the decaying Value Data, the source signal and first deamplification,
Calculate the nominal Value Data of the power amplifier device.
In the embodiment of the present application, when calculating route insertion loss data, need measuring instrument and signal source connection cables
It is attached, then controls signal source output source signal and read the reading of measuring instrument after signal source connection cables, obtain
To route insertion loss data.
Decaying Value Data is lossy data when attenuator is not connected to power amplifier device, is distinguished using signal source connecting line
It is connect with signal source and attenuator, the attenuator other end connects measuring instrument, and control signal source exports source signal, control measurement
Instrument reads the second deamplification, and obtains third output data, subtracts route insertion loss data using third output data
It can be obtained by decaying Value Data.
It should be noted that being the calibrating mode of half-path used in the embodiment of the present invention, that is, signal source arrives
The mode that connecting line, connecting line to measuring instrument are calibrated respectively.
It, can be with the front end insertion loss data of calculation test system in the embodiment of the present invention.Fig. 2 is the embodiment of the present application
A kind of another flow chart of the calibration method of the test macro provided.
It is shown in Figure 3.The insertion loss data for learning test macro in order to be more accurate, one kind provided by the invention
The calibration method of test macro includes:
Source signal is input to the system input of the test macro, and passes through the test by S201, control signal source
The source signal is input in power amplifier device by the measured device input terminal of system;The power amplifier device is used for institute
It states after source signal amplifies processing and generates amplified signal;
S202, the power amplifier device is amplified into processing to the source signal after the amplified signal that generates it is defeated
Enter the measured device output end to the test macro, and measuring equipment is read in the system output of the test macro
First output signal;
S203, according to the source signal, the nominal Value Data of first output signal and the power amplifier device, meter
The first insertion loss data of the test macro are calculated, and the test macro is carried out according to the first insertion loss data
High-power calibration;
The source signal is input to the system input of the test macro by S204, the control signal source, and
It controls the measuring instrument and reads the second output signal in the measured device input terminal;
S205, according to the source signal, the route insertion loss data and second output signal, calculate the survey
The front end insertion loss data of test system.
In the embodiment of the present invention, step S201, S202, S203 and step S101, S102, S103 phase in above-described embodiment
Together, details are not described herein.Step S204, in S205, in advance by the input terminal of signal source connecting test system, computer control is controlled
Source signal processed is input to the system input of the test macro, and measuring instrument is connected to the measured piece input of test macro
The second output signal is read at end, according to source signal, the route insertion loss data and second output signal, calculates institute
State the front end insertion loss data of test macro.Insertion loss data and the second output signal namely are subtracted using source signal,
Obtain front end insertion loss data.And store front end insertion loss data.
In actual use, when being calibrated to test macro, it can also be inserted according to front end insertion loss data and first
Enter lossy data to calibrate test macro.In actual use, since front end insertion loss data are high-power lower to survey
The influence of test system is little, therefore, it is high-power it is lower test macro is calibrated when, can be only with the first insertion loss number
It is calibrated according to test macro.
In the embodiment of the present invention, not only powerful calibration can be carried out to test macro, can also to test macro into
The low power calibration of row, therefore, on the basis of the above embodiments, the embodiment of the present invention also provides a kind of calibration of test macro
Method, referring to shown in Fig. 4, comprising:
Source signal is input to the system input of the test macro, and passes through the test by S301, control signal source
The source signal is input in power amplifier device by the measured device input terminal of system;The power amplifier device is used for institute
It states after source signal amplifies processing and generates amplified signal;
S302, the power amplifier device is amplified into processing to the source signal after the amplified signal that generates it is defeated
Enter the measured device output end to the test macro, and measuring equipment is read in the system output of the test macro
First output signal;
S303, according to the source signal, the nominal Value Data of first output signal and the power amplifier device, meter
The first insertion loss data of the test macro are calculated, and the test macro is carried out according to the first insertion loss data
High-power calibration;
The source signal is input to the system input of the test macro by S304, the control signal source, and
It controls the measuring instrument and reads the second output signal in the measured device input terminal;
S305, according to the source signal, the route insertion loss data and second output signal, calculate the survey
The front end insertion loss data of test system;
Source signal is input to the system input of the test macro by S306, control signal source, and by described
The measured device input terminal of test macro exports the measured device that the source signal is input to the test macro
End, and measuring equipment reads third output signal in the system output of the test macro;
S307, according to the source signal, the third output signal and the front end insertion loss data, calculate the survey
Second insertion loss data of test system, and small-power school is carried out to the test macro according to the second insertion loss data
It is quasi-.
In the embodiment of the present invention, low power calibration can also be carried out to test macro.Small-power is carried out to test macro
Calibration when, calculate front end insertion loss data first, calculation is same as the previously described embodiments, and details are not described herein.
Under the premise of obtaining front end insertion loss data, in step S306 and S307, power amplifier device is omitted,
It directly controls measuring instrument and reads third output signal, and the 4th output data is obtained according to source signal, that is, believe using source
Number subtracting third output signal obtains the 4th output data.4th output data and the front end insertion loss data are made the difference,
The second insertion loss data for calibrating to test macro small-power are obtained.It can be according to actual needs in test macro pair
Before device carries out low-power measurement, small-power calibration is carried out to test macro according to the second insertion loss data.
Therefore, the embodiment of the present invention not only can carry out powerful calibration to test macro, can also be to test macro
Carry out low power calibration.
Another aspect of the present invention discloses a kind of calibration system of test macro, for calibrating to test macro.
Fig. 5 is a kind of structural schematic diagram of the calibration system of test macro provided by the invention.
Referring to Fig. 5, a kind of calibration system of test macro of the invention includes:
First input module 401 is input to the system input of the test macro for controlling signal source for source signal,
And the source signal is input in power amplifier device by the measured device input terminal of the test macro;The power is put
Big device is used to generate amplified signal after amplifying processing to the source signal;
Detection module 402, for the power amplifier device to be amplified the institute generated after processing to the source signal
The measured device output end that amplified signal is input to the test macro is stated, and measuring equipment is in the test macro
Output end of uniting reads the first output signal;
First computing module 403, for according to the source signal, first output signal and the power amplifier device
Nominal Value Data, calculate the first insertion loss data of the test macro, and according to the first insertion loss data pair
The test macro carries out high-power calibration.
Preferably, the computing module includes:
The source signal is input in the power amplifier device by input unit for controlling the signal source, by institute
It states the amplified signal that generates after power amplifier device amplifies processing to the source signal to be input in attenuator, and controls
Make the first deamplification that the measuring instrument reads the attenuator output;
First computing unit, for being believed according to the decaying Value Data of route insertion loss data, the attenuator, the source
Number and first deamplification, calculate the nominal Value Data of the power amplifier device;
Second computing unit, for calculating the test system according to first output signal and the nominal Value Data
First insertion loss data of system.
Preferably, first computing unit includes:
The source signal is input in the measuring instrument by the first computation subunit for controlling the signal source, and
It controls the measuring instrument and reads measuring signal, the route insertion loss is calculated according to the source signal and the measuring signal
Data;
The source signal is input in the attenuator for controlling the signal source, and controls by the second computation subunit
The second deamplification that the measuring instrument reads the attenuator output is made, according to the source signal, route insertion damage
Consumption data and second deamplification calculate the decaying Value Data of the attenuator;
Third computation subunit, for according to the route insertion loss data, the decaying Value Data, the source signal
With first deamplification, the nominal Value Data of the power amplifier device is calculated.
Preferably, further includes:
Second input module is input to the system of the test macro for controlling the signal source for the source signal
System input terminal, is input to the test macro for the source signal by the measured device input terminal of the test macro
The measured device output end, and control the measuring instrument and read the second output signal in the measured device output end;
Second computing module, for being believed according to the source signal, the route insertion loss data and second output
Number, calculate the front end insertion loss data of the test macro.
Preferably, further includes:
Third input module inputs the system that source signal is input to the test macro for controlling signal source
End, and the source signal is input to described in the test macro by the measured device input terminal of the test macro
Measured device output end, and measuring equipment reads third output signal in the system output of the test macro;
Third computing module, for according to the source signal, the third output signal and the front end insertion loss number
According to calculating the second insertion loss data of the test macro, and be to the test according to the second insertion loss data
System carries out small-power calibration.
Source signal is input to by provided by the present invention a kind of calibration system of test macro, the system control signal source
The system input of the test macro, and be input to the source signal by the measured device input terminal of the test macro
In power amplifier device, the power amplifier device generates amplified signal after amplifying processing to the source signal;Control is surveyed
Measuring appratus reads the first output signal in the system output of the test macro, according to the source signal, first output
The nominal Value Data of signal and the power amplifier device, calculates the first insertion loss data of the test macro, and according to
The first insertion loss data carry out high-power calibration to the test macro.Therefore the embodiment of the present invention can be high-power
Under test macro is calibrated, and then the measurement data under the high-power state of available measured device.And it can also be right
Test macro carries out low power calibration, also the measurement data under available measured device small-power state.
It should be noted that a kind of calibration system of test macro of the present embodiment can be using in above method embodiment
A kind of test macro test method, for realizing whole technical solutions in above method embodiment, modules
Function can be implemented according to the method in above method embodiment, and specific implementation process can refer in above-described embodiment
Associated description, details are not described herein again.
For convenience of description, it is divided into various modules when description system above with function to describe respectively.Certainly, implementing this
The function of each module can be realized in the same or multiple software and or hardware when application.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit of separate part description may or may not be physically separated, component shown as a unit can be or
Person may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can root
According to actual need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel can understand and implement without creative efforts.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of calibration method of test macro, for being calibrated to test macro characterized by comprising
Source signal is input to the system input of the test macro by control signal source, and passes through the tested of the test macro
The source signal is input in power amplifier device by device input;The power amplifier device be used for the source signal into
Amplified signal is generated after row enhanced processing;
By the power amplifier device to the source signal amplify the amplified signal that generates after processing be input to it is described
The measured device output end of test macro, and measuring equipment reads the first output in the system output of the test macro
Signal;
According to the source signal, the nominal Value Data of first output signal and the power amplifier device, the survey is calculated
First insertion loss data of test system, and high-power school is carried out to the test macro according to the first insertion loss data
It is quasi-;
Wherein, described according to the source signal, the nominal Value Data of first output signal and the power amplifier device, meter
Calculate the first insertion loss data of the test macro, comprising:
It controls the signal source source signal is input in the power amplifier device, by the power amplifier device to institute
It states the amplified signal that generates after source signal amplifies processing to be input in attenuator, and controls the measuring instrument and read
First deamplification of the attenuator output;
According to route insertion loss data, the decaying Value Data of the attenuator, the source signal and first deamplification,
Calculate the nominal Value Data of the power amplifier device;
According to first output signal and the nominal Value Data, the first insertion loss data of the test macro are calculated.
2. calibration method according to claim 1, which is characterized in that it is described according to route insertion loss data, described decline
The decaying Value Data, the source signal and first deamplification for subtracting device calculate the described nominal of the power amplifier device
Value Data, comprising:
It controls the signal source source signal is input in the measuring instrument, and controls the measuring instrument and read measurement
Signal calculates the route insertion loss data according to the source signal and the measuring signal;
It controls the signal source source signal is input in the attenuator, and controls and decline described in the measuring instrument reading
The second deamplification for subtracting device output, according to the source signal, the route insertion loss data and second deamplification
Calculate the decaying Value Data of the attenuator;
According to the route insertion loss data, the decaying Value Data, the source signal and first deamplification, calculate
The nominal Value Data of the power amplifier device.
3. calibration method according to claim 2, which is characterized in that further include:
The system input that the source signal is input to the test macro by the signal source is controlled, and controls the survey
Measuring appratus reads the second output signal in the measured device input terminal;
According to the source signal, the route insertion loss data and second output signal, the test macro is calculated
Front end insertion loss data.
4. calibration method according to claim 3, which is characterized in that further include:
Source signal is input to the system input of the test macro by control signal source, and passes through the test macro
The source signal is input to the measured device output end of the test macro by the measured device input terminal, and controls survey
Measuring appratus reads third output signal in the system output of the test macro;
According to the source signal, the third output signal and the front end insertion loss data, the test macro is calculated
Second insertion loss data, and small-power calibration is carried out to the test macro according to the second insertion loss data.
5. a kind of calibration system of test macro, for being calibrated to test macro characterized by comprising
First input module is input to the system input of the test macro for controlling signal source for source signal, and passes through
The source signal is input in power amplifier device by the measured device input terminal of the test macro;The power amplifier device
For generating amplified signal after amplifying processing to the source signal;
Detection module is believed for the power amplifier device to be amplified the amplification generated after processing to the source signal
It number is input to the measured device output end of the test macro, and measuring equipment is in the system output of the test macro
Read the first output signal;
First computing module, for according to the nominal of the source signal, first output signal and the power amplifier device
Value Data calculates the first insertion loss data of the test macro, and according to the first insertion loss data to the survey
Test system carries out high-power calibration;
Wherein, first computing module includes:
The source signal is input in the power amplifier device by input unit for controlling the signal source, by the function
Rate amplifying device amplifies the amplified signal generated after processing to the source signal and is input in attenuator, and controls institute
State the first deamplification that measuring instrument reads the attenuator output;
First computing unit, for according to the decaying Value Data of route insertion loss data, the attenuator, the source signal and
First deamplification calculates the nominal Value Data of the power amplifier device;
Second computing unit, for calculating the test macro according to first output signal and the nominal Value Data
First insertion loss data.
6. calibration system according to claim 5, which is characterized in that first computing unit includes:
The source signal is input in the measuring instrument for controlling the signal source, and controls by the first computation subunit
The measuring instrument reads measuring signal, calculates the route insertion loss number according to the source signal and the measuring signal
According to;
The source signal is input in the attenuator for controlling the signal source, and controls institute by the second computation subunit
The second deamplification that measuring instrument reads the attenuator output is stated, according to the source signal, the route insertion loss number
According to the decaying Value Data for calculating the attenuator with second deamplification;
Third computation subunit, for according to the route insertion loss data, the decaying Value Data, the source signal and institute
The first deamplification is stated, the nominal Value Data of the power amplifier device is calculated.
7. calibration system according to claim 6, which is characterized in that further include:
Second input module, it is defeated for controlling the system that the source signal is input to the test macro by the signal source
Enter end, and controls the measuring instrument and read the second output signal in the measured device input terminal;
Second computing module, for according to the source signal, the route insertion loss data and second output signal, meter
Calculate the front end insertion loss data of the test macro.
8. calibration system according to claim 7, which is characterized in that further include:
Third input module is input to the system input of the test macro for controlling signal source for source signal, and
The source signal is input to the described tested of the test macro by the measured device input terminal of the test macro
Device output end, and measuring equipment reads third output signal in the system output of the test macro;
Third computing module, for according to the source signal, the third output signal and the front end insertion loss data, meter
The second insertion loss data of the test macro are calculated, and the test macro is carried out according to the second insertion loss data
Small-power calibration.
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CN107370471B (en) * | 2017-06-29 | 2020-06-05 | 中国电子科技集团公司第四十一研究所 | PXI bus programmable amplifier/attenuator and calibration method thereof |
CN108845168A (en) * | 2018-07-10 | 2018-11-20 | 四川九洲电器集团有限责任公司 | A kind of debugging instrument and debugging platform and the adjustment method based on the debugging instrument |
CN109375126A (en) * | 2018-09-30 | 2019-02-22 | 中国船舶重工集团公司第七0九研究所 | Integrated circuit test system self-checking device and method based on digital analog converter |
CN111812399B (en) * | 2020-07-01 | 2022-06-07 | 合肥芯谷微电子有限公司 | Accurate test method for microwave power amplification module |
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