Amplitude-phase fast calibration method for vector modulation in complex electromagnetic environment

Abstract

The invention discloses a vector modulation amplitude-phase rapid calibration method in a complex electromagnetic environment. The method comprises the following steps: S1, establishing a basic amplitude-phase mathematical model and an ideal amplitude-phase mathematical model of a vector modulator; s2, calculating the difference between the basic amplitude-phase mathematical model and the ideal amplitude-phase mathematical model, and establishing an amplitude-phase calibration model of the vector modulator; s3, adopting an optimization algorithm to minimize the value of the amplitude-phase calibration model, obtaining a corresponding optimized ideal amplitude-phase mathematical model, and completing calibration; all amplitude-phase data does not need to be collected, the defect of large voltage error during small voltage collection can be avoided, and the method has the advantages of being high in calibration speed, high in calibration precision, small in calibration workload and the like.

Description

Technical Field

[0001] The invention relates to the field of radar technology, and in particular to a method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment. Background Art

[0002] With the rapid development of radar technology, radar is developing towards high frequency band, multi-channel and variable amplitude. Vector modulation is a signal processing technology mainly used in wireless communication and radar systems. It modulates the signal by precisely controlling the amplitude and phase of the carrier signal. At present, there is a need to quickly calibrate the amplitude and phase of vector modulation in a complex electromagnetic environment, but there is no relevant method in the prior art. Summary of the invention

[0003] The purpose of the present invention is to provide a method for quickly calibrating the amplitude and phase of vector modulation in a complex electromagnetic environment.

[0004] To achieve the above object, the present invention proposes a method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment, comprising the following steps:

[0005] S1. Establish the basic amplitude-phase mathematical model and the ideal amplitude-phase mathematical model of the vector modulator;

[0006] S2, calculating the difference between the basic amplitude-phase mathematical model and the ideal amplitude-phase mathematical model, and establishing an amplitude-phase calibration model of the vector modulator;

[0007] S3. Using an optimization algorithm to minimize the value of the amplitude-phase calibration model, obtaining the corresponding optimized ideal amplitude-phase mathematical model, and completing the calibration.

[0008] Preferably, step S1 comprises the following steps:

[0009] S11, establish the basic amplitude-phase mathematical model of the vector modulator, which is:

[0010] Amplitude A = f A (V i ,V q )=2·A0·sqrt((V i / V im ) 2 +(V q / V qm ) 2 );

[0011] Phase Ψ=f Ψ (V i ,V q )=tan -1 (V q / V i ),

[0012] Among them, V i and V q I represents the orthogonal control voltage of the vector modulator in rectangular coordinates. The orthogonal control voltage refers to the voltage used to control the two orthogonal signals inside the vector modulator. The two orthogonal signals are marked as i and q signals. im and V qm Indicates the quadrature control voltage V i and V q Variation range, V im =|V imax -V imin |,

[0013] V qm =|V qmax -Vq min |;V imax is the control voltage V i The maximum allowable value, V imin is the control voltage V i The minimum allowable value, V qmax is the control voltage V q The maximum allowable value, V qmin is the control voltage V q The minimum allowable value; A0 represents the gain of the vector modulator;

[0014] S12, based on the basic amplitude-phase mathematical model of the vector modulator, the orthogonal control voltage V in the model is adjusted according to the physical characteristics of the device. i and V q By offsetting, deforming, pulling and rotating, the theoretical orthogonal control voltage V is obtained. i4 and V q4 ;

[0015] S13, the theoretical orthogonal control voltage V i4 and V q4 Substitute them into the basic amplitude-phase mathematical model to obtain the ideal amplitude-phase mathematical model of the vector modulator: A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ).

[0016] Preferably, step S12 further includes the following steps:

[0017] S121, orthogonal control voltage V i and V q Perform an offset operation to obtain a first orthogonal control voltage V i1 and V q1 :V i1=V i -V ios ; V q1 =V q -V qos ; Among them, V ios is the offset voltage value in the i direction, V qos is the offset voltage value in the q direction;

[0018] S122, at the first orthogonal control voltage V i1 and V q1 Based on this, a deformation operation is performed to obtain a second orthogonal control voltage V i2 and V q2 :V i2 =(V i1 +V q1 / tanβ); V q2 =V q1 ; Where β is the voltage deformation factor;

[0019] S123, at the second orthogonal control voltage V i2 and V q2 Based on this, a pull-up operation is performed to obtain the third orthogonal control voltage V i3 and V q3 :V i3 =j·(V i2 +V q2 / tanβ); V q3 = k·V q2 ; Where j is the pull-up amount in the i direction, and k is the pull-up amount in the q direction;

[0020] S124, at the third orthogonal control voltage V i3 and V q3 Based on this, a rotation operation is performed to obtain the theoretical orthogonal control voltage V i4 and V q4 :V i4 =V i3 ·cosθ+V q3 sinθ; V q4 =-V i3 sinθ+V q3 ·cosθ; where θ is the voltage rotation factor.

[0021] Preferably, step S2 further comprises the following steps:

[0022] S21, for the basic amplitude and phase mathematical models A and Ψ of the vector modulator, respectively change the orthogonal control voltage V q and V i , a first basic amplitude A1 and a first basic phase Ψ1 and a second basic amplitude A2 and a second basic phase Ψ2 are measured;

[0023] S22, for the ideal amplitude and phase mathematical model of the vector modulator, change the orthogonal control voltage V q and V i , a first ideal amplitude A1' and a first ideal phase Ψ1' and a second ideal amplitude A2' and a second ideal phase Ψ2' are measured;

[0024] S23. Calculate the sum of squares of the differences between the ideal amplitude and phase and the basic amplitude and phase as an amplitude and phase calibration model.

[0025] Preferably, step S21 is specifically as follows:

[0026] The control voltage V i Within the allowable range, gradually change the control voltage V q , a corresponding first basic amplitude A1 (±V imax ,V qn ) and the first basic phase Ψ1 (±V imax ,V qn ), where ±V imax Refers to V i The allowable range V imin ~V imax , V q The change step is V qstep , V qn The value of [V qmin ,V qmin +V qstep ,V qmin +2V qstep ,…,V qmax ];

[0027] The control voltage V q Within the allowable range, gradually change the control voltage V i , a corresponding second basic amplitude A2 (V in ,±V qmax ) and the second fundamental phase Ψ2 (V in ,±V qmax ), where ±V qmax Refers to V q The allowable range V qmin ~V qmax , V i The change step is V istep , V in The value of [V imin ,V imin +V istep ,V imin +2 V istep ,…,V imax ].

[0028] Preferably, step S22 is specifically as follows:

[0029] The control voltage V i Within the allowable range, gradually change the control voltage V q , a corresponding first ideal amplitude A1' (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,V qn ), V qn The value of is the same as that in S21;

[0030] The control voltage V q Within the allowable range, gradually change the control voltage V i , a corresponding second ideal amplitude A2' (V in ,±V qmax ) and the second fundamental phase Ψ2'(V in ,±V qmax ), V in The value of is the same as that in S21.

[0031] Preferably, step S23 is specifically:

[0032] Calculate the first basic amplitude A1 (±V imax ,V qn ) and the first ideal amplitude A1'(±V imax ,V qn ) difference, the second basic amplitude A2 (V in ,±V qmax ) and the second ideal amplitude A2'(V in ,±V qmax ) difference, the first basic phase Ψ1 (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,V qn ) difference, the second basic phase Ψ2 (V in ,±V qmax ) and the second fundamental phase Ψ2'(V in ,±V qmax ) and calculate the sum of squares of these four differences as the amplitude and phase calibration model.

[0033] Preferably, step S3 specifically includes: using an optimization algorithm to minimize the value of the amplitude-phase calibration model, thereby obtaining the corresponding V ios 、V qos , j, k and θ, V ios 、V qosSubstitute , j, k and θ into the ideal amplitude-phase mathematical model A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ) to complete the quick calibration.

[0034] Compared with the prior art, the technical solution of the present invention includes at least the following advantages and beneficial effects:

[0035] The present invention discloses a method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment. The method establishes a mathematical model of a vector modulator, collects the maximum orthogonal control voltage to obtain the value of the vector modulation, uses an intelligent optimization algorithm to calculate the mathematical model parameters, and obtains the remaining amplitude and phase parameters of the vector modulator based on the mathematical model and parameter fitting, thereby avoiding the collection of all amplitude and phase data and avoiding the disadvantage of large voltage error when collecting small voltages. The method has the advantages of fast calibration speed, high calibration accuracy, small calibration workload, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of a method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment according to the present invention;

[0037] Figure 2 2 is an amplitude-phase constellation diagram in an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the present invention Figure 1-2 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0039] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0040] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] The embodiment of the present invention discloses a method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment, which is mainly used for phased array radars using vector modulation, such as Figure 1 As shown, the following steps are included:

[0042] S1. Establishing an ideal amplitude-phase mathematical model of a vector modulator includes the following steps:

[0043] S11, establish the basic amplitude-phase mathematical model of the vector modulator, which is:

[0044] Amplitude A = f A (V i ,V q )=2·A0·sqrt((V i / V im ) 2 +(V q / V qm ) 2 );

[0045] Phase Ψ=f Ψ (V i ,V q )=tan -1 (V q / V i );

[0046] Among them, V i and V q I represents the orthogonal control voltage of the vector modulator in rectangular coordinates. The orthogonal control voltage refers to the voltage used to control the two orthogonal signals inside the vector modulator. The two orthogonal signals are marked as i and q signals. The i signal represents the in-phase component of the carrier signal, and the q signal represents the orthogonal component with a phase difference of 90 degrees with the i signal. im and V qm Indicates the quadrature control voltage V i and V q Variation range, specific, V im =|V imax -V imin |, Vqm =|V qmax -V qmin |;V imax is the control voltage V i The maximum allowable value, V imin is the control voltage V i The minimum allowable value, V qmax is the control voltage V q The maximum allowable value, V qmin is the control voltage V q The minimum allowed value; A0 represents the gain of the vector modulator.

[0047] S12, based on the basic amplitude-phase mathematical model of the vector modulator, the orthogonal control voltage V in the model is adjusted according to the physical characteristics of the device. i and V q By offsetting, deforming, pulling and rotating, the theoretical orthogonal control voltage V is obtained. i4 and V q4 , specifically including the following steps:

[0048] S121, orthogonal control voltage V i and V q Perform an offset operation to obtain a first orthogonal control voltage V i1 and V q1 :

[0049] V i1 =V i -V ios ;

[0050] V q1 =V q -V qos ;

[0051] Among them, V ios is the offset voltage value in the i direction, V qos is the offset voltage value in the q direction;

[0052] S122, at the first orthogonal control voltage V i1 and V q1 Based on this, a deformation operation is performed to obtain a second orthogonal control voltage V i2 and V q2 :

[0053] V i2 =(V i1 +V q1 / tanβ);

[0054] V q2 =V q1 ;

[0055] Among them, β is the voltage deformation factor;

[0056] S123, at the second orthogonal control voltage V i2 and V q2 Based on this, a pull-up operation is performed to obtain the third orthogonal control voltage V i3 and V q3 :

[0057] V i3 =j·(V i2 +V q2 / tanβ);

[0058] V q3 = k·V q2 ;

[0059] Among them, j is the pulling amount in the i direction, and k is the pulling amount in the q direction;

[0060] S124, at the third orthogonal control voltage V i3 and V q3 Based on this, a rotation operation is performed to obtain the theoretical orthogonal control voltage V i4 and V q4 :

[0061] V i4 =V i3 ·cosθ+V q3 sinθ;

[0062] V q4 =-V i3 sinθ+V q3 ·cosθ;

[0063] Where θ is the voltage rotation factor.

[0064] S13, the theoretical orthogonal control voltage V i4 and V q4 Substitute them into the basic amplitude and phase mathematical model of the vector modulator respectively to obtain the ideal amplitude and phase mathematical model of the vector modulator: A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ), the ideal amplitude-phase mathematical model includes the parameter V ios 、V qos , j, k and θ.

[0065] S2, establishing an amplitude and phase calibration model of a vector modulator, specifically comprising the following steps:

[0066] S21, for the basic amplitude and phase mathematical models A and Ψ of the vector modulator, respectively change the orthogonal control voltage V q and V i , a first basic amplitude A1 and a first basic phase Ψ1 and a second basic amplitude A2 and a second basic phase Ψ2 are measured;

[0067] First, the control voltage V i Within the allowable range, gradually change the control voltage V q , and measure a corresponding first basic amplitude A1 (±V imax ,V qn ) and the first basic phase Ψ1 (±V imax ,V qn ), where ±V imax Refers to V i The allowable range V imin ~V imax , for convenience of representation, -V is used here imax Indicates V imin ; Specifically, V q The change step is V qstep , that is, V qn The value of [V qmin ,V qmin +V qstep ,V qmin +2V qstep ,…,V qmax ];

[0068] Then, the control voltage V q Within the allowable range, gradually change the control voltage V i , and measure a corresponding second basic amplitude A2 (V in ,±V qmax ) and the second fundamental phase Ψ2 (V in ,±V qmax ), where ±V qmax Refers to V q The allowable range V qmin ~V qmax , here for convenience, -V is used qmax Indicates V qmin ; Specifically, V i The change step is V istep , that is, V in The value of [V imin ,V imin +V istep ,V imin +2 V istep ,…,V imax ];

[0069] This set of data is in V q = ±V qmax and V i = ±V imax The measured value is obtained under the limitation of , that is, the value of the vector modulation obtained at the maximum orthogonal control voltage. Therefore, the measured first basic amplitude A1 and the first basic phase Ψ1 and the second basic amplitude A2 and the second basic phase Ψ2 are Figure 2 The outermost circle;

[0070] S22, for the ideal amplitude and phase mathematical model of the vector modulator, change the orthogonal control voltage V q and V i , a first ideal amplitude A1' and a first ideal phase Ψ1' and a second ideal amplitude A2' and a second ideal phase Ψ2' are measured;

[0071] First, the control voltage V i Within the allowable range, gradually change the control voltage V q , and measure a corresponding first ideal amplitude A1' (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,V qn ), V qn The value of is the same as that in S21;

[0072] Then, the control voltage V q Within the allowable range, gradually change the control voltage V i , and measure a corresponding second ideal amplitude A2' (V in ,±V qmax ) and the second fundamental phase Ψ2'(V in ,±V qmax ), V in The value of is the same as that in S21;

[0073] S23, calculate the sum of squares of the difference between the ideal amplitude and phase and the basic amplitude and phase as the amplitude and phase calibration model, specifically, calculate the first basic amplitude A1 (±V imax ,V qn ) and the first ideal amplitude A1'(±V imax ,V qn ) difference, the second basic amplitude A2 (V in ,±V qmax ) and the second ideal amplitude A2'(V in ,±V qmax ) difference, the first basic phase Ψ1 (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,Vqn ) difference, the second basic phase Ψ2 (V in ,±V qmax ) and the second fundamental phase Ψ2'(V in ,±V qmax ) and calculate the sum of the squares of these four differences as the amplitude and phase calibration model, which is (A1'-A1) 2 +(A2'-A2) 2 +(Ψ1'-Ψ1) 2 +(Ψ2'-Ψ2) 2 The amplitude-phase calibration model includes V ios 、V qos , j, k and θ;

[0074] S3, using an optimization algorithm to minimize the value of the amplitude-phase calibration model, thereby obtaining the corresponding V ios 、V qos , j, k and θ, V ios 、V qos Substitute , j, k and θ into the ideal amplitude-phase mathematical model A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ) to complete the quick calibration.

[0075] at this time, Figure 2 The values ​​of the outermost circle are removed, and the values ​​of the inner circle can be obtained according to the ideal amplitude-phase mathematical model A'=f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ) is calculated without measurement, thus avoiding the disadvantage of large voltage error when collecting small voltages.

[0076] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment, characterized in that: The following steps are involved: S1. Establish the basic amplitude-phase mathematical model and the ideal amplitude-phase mathematical model of the vector modulator; S2, calculating the difference between the basic amplitude-phase mathematical model and the ideal amplitude-phase mathematical model, and establishing an amplitude-phase calibration model of the vector modulator; S3. Using an optimization algorithm to minimize the value of the amplitude-phase calibration model, obtaining the corresponding optimized ideal amplitude-phase mathematical model, and completing the calibration.

2. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 1, characterized in that: Step S1 includes the following steps: S11, establish the basic amplitude-phase mathematical model of the vector modulator, which is: Amplitude A = f A (V i , V q ) = 2·A0·sqrt((V i / V im ) 2 +(V q / V qm ) 2 ); Phase Ψ=f Ψ (V i ,V q )=tan -1 (V q / V i ), Among them, V i and V q I represents the orthogonal control voltage of the vector modulator in rectangular coordinates. The orthogonal control voltage refers to the voltage used to control the two orthogonal signals inside the vector modulator. The two orthogonal signals are marked as i and q signals. im and V qm Indicates the quadrature control voltage V i and V q Variation range, V im =|V imax -V imin |, V qm =|V qmax -Vq min |;V imax is the control voltage V i The maximum allowable value, V imin is the control voltage V i The minimum allowable value, V qmax is the control voltage V q The maximum allowable value, V qmin is the control voltage V q The minimum allowable value; A0 represents the gain of the vector modulator; S12, based on the basic amplitude-phase mathematical model of the vector modulator, the orthogonal control voltage V in the model is adjusted according to the physical characteristics of the device. i and V q By offsetting, deforming, pulling and rotating, the theoretical orthogonal control voltage V is obtained. i4 and V q4 ; S13, the theoretical orthogonal control voltage V i4 and V q4 Substitute them into the basic amplitude-phase mathematical model to obtain the ideal amplitude-phase mathematical model of the vector modulator: A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ).

3. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 1, characterized in that: Step S12 further includes the following steps: S121, orthogonal control voltage V i and V q Perform an offset operation to obtain a first orthogonal control voltage V i1 and V q1 :V i1 =V i -V ios ; V q1 =V q -V qos ; Among them, V ios is the offset voltage value in the i direction, V qos is the offset voltage value in the q direction; S122, at the first orthogonal control voltage V i1 and V q1 Based on this, a deformation operation is performed to obtain a second orthogonal control voltage V i2 and V q2 :V i2 =(V i1 +V q1 / tanβ); V q2 =V q1 ; Where β is the voltage deformation factor; S123, at the second orthogonal control voltage V i2 and V q2 Based on this, a pull-up operation is performed to obtain the third orthogonal control voltage V i3 and V q3 :V i3 =j·(V i2 +V q2 / tanβ); V q3 = k·V q2 ; Where j is the pull-up amount in the i direction, and k is the pull-up amount in the q direction; S124, at the third orthogonal control voltage V i3 and V q3 Based on this, a rotation operation is performed to obtain the theoretical orthogonal control voltage V i4 and V q4 :V i4 =V i3 ·cosθ+V q3 sinθ; V q4 =-V i3 sinθ+V q3 ·cosθ; where θ is the voltage rotation factor.

4. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 1, characterized in that: Step S2 further comprises the following steps: S21, for the basic amplitude and phase mathematical models A and Ψ of the vector modulator, respectively change the orthogonal control voltage V q and V i , a first basic amplitude A1 and a first basic phase Ψ1 and a second basic amplitude A2 and a second basic phase Ψ2 are measured; S22, for the ideal amplitude and phase mathematical model of the vector modulator, change the orthogonal control voltage V q and V i , the first ideal amplitude A1' and the first ideal phase Ψ1' and the second ideal amplitude A2' are measured and the second ideal phase Ψ2'; S23. Calculate the sum of squares of the differences between the ideal amplitude and phase and the basic amplitude and phase as an amplitude and phase calibration model.

5. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 4, characterized in that: Step S21 is specifically as follows: The control voltage V i Within the allowable range, gradually change the control voltage V q , a corresponding first basic amplitude A1 (±V imax ,V qn ) and the first basic phase Ψ1 (±V imax ,V qn ), where ±V imax Refers to V i The allowable range V imin ~V imax , V q The change step is V qstep , V qn The value of [V qmin ,V qmin +V qstep ,V qmin +2V qstep ,…,V qmax ]; The control voltage V q Within the allowable range, gradually change the control voltage V i , a corresponding second basic amplitude A2 (V in ,±V qmax ) and the second fundamental phase Ψ2 (V in ,±V qmax ), where ±V qmax Refers to V q The allowable range V qmin ~V qmax , V i The change step is V istep , V in The value of [V imin ,V imin +V istep ,V imin +2 V istep ,…,V imax ].

6. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 5, characterized in that: Step S22 is specifically as follows: The control voltage V i Within the allowable range, gradually change the control voltage V q , a corresponding first ideal amplitude A1' (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,V qn ), V qn The value of is the same as that in S21; The control voltage V q Within the allowable range, gradually change the control voltage V i , a corresponding second ideal amplitude A2' (V in ,±V qmax ) and the second fundamental phase Ψ2' (V in ,±V qmax ), V in The value of is the same as that in S21.

7. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 6, characterized in that: Step S23 is specifically as follows: Calculate the first basic amplitude A1 (±V imax ,V qn ) and the first ideal amplitude A1'(±V imax ,V qn ) difference, the second basic amplitude A2 (V in ,±V qmax ) and the second ideal amplitude A2'(V in ,±V qmax ) difference, the first basic phase Ψ1 (±V imax ,V qn ) and the first ideal phase Ψ1'(±V imax ,V qn ) difference, the second basic phase Ψ2 (V in ,±V qmax ) and the second fundamental phase Ψ2' (V in ,±V qmax ) and calculate the sum of squares of these four differences as the amplitude and phase calibration model.

8. The method for rapid amplitude and phase calibration of vector modulation in a complex electromagnetic environment as claimed in claim 7, characterized in that: Step S3 specifically includes: using an optimization algorithm to minimize the value of the amplitude-phase calibration model, thereby obtaining the corresponding V ios 、V qos , j, k and θ, V ios 、V qos Substitute , j, k and θ into the ideal amplitude-phase mathematical model A' = f A '(V i ,V q ) and Ψ' = f Ψ '(V i ,V q ) to complete the quick calibration.

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