HPM damage effect evaluation method, evaluation system and evaluation device for amplitude comparison direction finding system

Abstract

The present invention provides a method, system and device for evaluating the damage effect of a comparative amplitude direction finding system HPM, which are used to evaluate the influence of high-power microwaves on the performance parameters of the comparative amplitude direction finding system, including: setting evaluation target characteristic parameters; simulating the process of coupling high-power microwaves to the receiving antenna of the evaluation target and obtaining high-power microwave coupling parameters; obtaining damage effect level parameters of the sensitive components of the evaluation target by processing the high-power microwave coupling parameters; obtaining the maximum detection distance reduction degree and direction finding accuracy error parameters of the evaluation target corresponding to different damage effect levels of the evaluation target components according to the damage effect level parameters of the evaluation target components, the theoretical maximum detection distance of the evaluation target and the theoretical direction finding accuracy solution model. The technical problem that the related art lacks the evaluation of the performance influence of the comparative amplitude direction finding system in an external high-power microwave environment and the damage prediction evaluation method before the test is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of high power microwave effect evaluation, and in particular to an HPM damage effect evaluation method, an evaluation system and an evaluation device for an amplitude comparison direction finding system. Background Art

[0002] Electronic reconnaissance equipment can collect weak electromagnetic signals in space, amplify and process them, and identify the characteristics of these signals. Among them, direction finding and positioning performance is the key factor for electronic reconnaissance equipment to exert its effectiveness. Through direction finding, the radiation source signal of the threatening target can be intercepted, identified, analyzed and located, providing a reliable basis for guiding weapon systems to assist in attacks or implement effective interference and other actions.

[0003] In recent years, as the electromagnetic environment has become increasingly complex, intentional or unintentional electromagnetic signals from the outside world have had a serious impact on the direction-finding error of the direction-finding system. Among them, high-power microwaves can have a damaging effect on a variety of electronic systems, causing their performance to degrade or even fail completely. Under the action of high-power microwaves, damage to the front-end sensitive devices between the direction-finding receiving channels will cause the consistency of the amplitude and phase between the direction-finding channels to be destroyed, which in turn leads to large errors in the direction-finding of the system. In the existing technology, there is a lack of evaluation of the performance impact of the direction-finding system in an external high-power microwave environment and a damage prediction and evaluation method before the test.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a method, system and device for evaluating the damage effect of an amplitude comparison direction finding system HPM, so as to solve the technical problems in the related art of lacking an evaluation method for the performance impact of a direction finding system in an external high-power microwave environment and a damage prediction evaluation method before a test.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a damage effect evaluation method for an amplitude comparison direction finding system HPM is provided, which is used to evaluate the error caused by high-power microwaves to an evaluation target, including: setting characteristic parameters of the evaluation target; simulating the process of coupling high-power microwaves to the evaluation target receiving antenna, and obtaining high-power microwave coupling parameters; obtaining damage effect level parameters of sensitive components of the evaluation target by processing the high-power microwave coupling parameters; according to the damage effect level parameters of the sensitive components of the evaluation target, the theoretical maximum detection distance of the evaluation target and the theoretical direction finding accuracy solution model, obtaining the maximum detection distance reduction degree and direction finding accuracy error parameters of the evaluation target corresponding to different damage effect levels of the evaluation target components.

[0007] Furthermore, the evaluation target characteristic parameters include: electromagnetic characteristic parameters, transmission attenuation parameters, and the carrier frequency of the radiation source, antenna gain, transmission power, and the distance between the radar antenna and the receiving antenna; among which, the electromagnetic characteristic parameters include: the frequency, polarization mode, aperture area, and antenna utilization of the evaluation target; the transmission attenuation parameters include: transmission cable loss, polarization mismatch loss, etc.

[0008] Furthermore, a method for simulating the process of coupling high-power microwaves to the receiving antenna of the evaluation target and obtaining the high-power microwave parameters is as follows: calling the antenna pattern file of the evaluation target according to the characteristic parameters of the evaluation target to obtain the antenna coupling power of the evaluation target, and combining the link attenuation, antenna polarization mismatch loss, and adapter loss parameters to obtain the high-power microwave parameters.

[0009] Furthermore, by processing the high-power microwave parameters, the method for obtaining the damage effect level parameters of the evaluation target is: taking the high-power microwave parameters as input, calling the damage effect database of the components of the evaluation target, and based on the simplified high-power microwave damage model, giving the damage effect level parameters of the evaluation target corresponding to different high-power microwave parameters.

[0010] Furthermore, the method for obtaining the degree of reduction in detection range and direction-finding accuracy error of the evaluation target due to different damage effect levels of the evaluation target includes: obtaining the actual maximum detection range and actual direction-finding accuracy of the evaluation target according to the damage effect level parameters of the evaluation target; obtaining the theoretical maximum detection range and theoretical direction-finding accuracy value of the evaluation target according to the design model of the evaluation target, engineering test experience, and specific test scenarios; obtaining the degree of reduction in detection range and direction-finding accuracy error of high-power microwave for the evaluation target according to the difference between the theoretical maximum detection range and theoretical direction-finding accuracy value of the evaluation target and the actual maximum detection range and actual direction-finding accuracy of the evaluation target.

[0011] A damage effect assessment system comprises: a target characteristic parameter model, which is used to configure the electromagnetic characteristic parameters such as frequency, polarization mode, aperture area, antenna utilization rate and transmission attenuation parameters such as transmission cable loss and polarization mismatch loss of the assessment target according to actual conditions, and set the carrier frequency, antenna gain, transmission power and distance parameters between the radar antenna and the receiving antenna of the simulated radiation source on the parameter configuration interface; a damage solution model, which takes the high-power microwave pulse parameters entering the assessment target as input, combines the target high-power microwave damage effect database, and based on the high-power microwave damage simplified model, gives the damage effect level parameters of the target components and the whole machine under different high-power microwave parameters; the damage effect assessment model comprises a theoretical maximum detection distance solution model and a theoretical direction finding accuracy solution model of the assessment target.

[0012] Furthermore, the damage effect assessment model includes: a theoretical maximum detection distance solution model of the assessment target, including a detection power solution model of the amplitude comparison direction finding system, a digital receiver sensitivity calculation model, a system noise coefficient solution model, and a system noise coefficient change calculation model after the assessment target is damaged; the theoretical maximum detection distance solution model of the assessment target is used to obtain the power range, digital receiver sensitivity, noise coefficient, and noise coefficient change of the assessment target after component damage; a theoretical direction finding accuracy solution model, including a signal azimuth solution model, a radio frequency channel impact on direction finding accuracy solution model, and a direction finding inconsistency impact on direction finding accuracy model; the theoretical direction finding accuracy solution model is used to obtain the signal azimuth, the impact of the radio frequency channel on direction finding accuracy, and the impact of direction finding inconsistency on direction finding accuracy.

[0013] Furthermore, the damage effect assessment system includes: a data layer for providing parameter storage and read-write functions; an application layer for implementing parameter calculation and processing; and a user layer for implementing user interaction functions.

[0014] A computer-readable storage medium stores computer-readable instructions. When the computer-readable instructions are run on a communication device, the above method is executed.

[0015] A damage effect assessment device, characterized in that the damage effect assessment device contains computer-readable instructions, and when the computer-readable instructions are run on a digital simulation platform, the above method is executed.

[0016] Beneficial effects:

[0017] The damage effect assessment method of the amplitude comparison direction finding system HPM of the present invention constructs a damage effect assessment model to form a visualized operation process, clear parameter configuration, software setting and damage effect demonstration interface. The damage effect assessment model takes the intensity and characteristics of the high-power microwave beam reaching the target as input, combines the target motion, structure, electromagnetic and other characteristic parameters, and cooperates with the effect database to quantitatively predict and evaluate the impact on the performance indicators of the electronic system under different coupling parameters, supports the evaluation of the performance impact of the direction finding system in an external high-power microwave environment and the damage prediction and evaluation before the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a flow chart of a damage effect assessment method adopted in Embodiment 1 of the present invention;

[0019] Figure 2 is a flow chart of a damage effect assessment method adopted in Embodiment 4 of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of a damage effect assessment system used in an embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a damage effect assessment model of the damage effect assessment system adopted in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] Embodiment 1:

[0024] like Figure 1 A method for evaluating the damage effect of an amplitude comparison direction finding system HPM is shown, which is used to evaluate the error caused by high-power microwaves to the evaluation target, and includes:

[0025] S100 sets evaluation target characteristic parameters;

[0026] In specific practice, the evaluation target characteristic parameters are configured according to the actual situation. The evaluation target characteristic parameters include: electromagnetic characteristic parameters, transmission attenuation parameters, and the carrier frequency of the radiation source, antenna gain, transmission power, and the distance between the radar antenna and the receiving antenna;

[0027] Among them, the electromagnetic characteristic parameters include: frequency, polarization mode, aperture area, and antenna utilization of the evaluation target; the transmission attenuation parameters include: transmission cable loss, polarization mismatch loss, etc.

[0028] S200 simulates and evaluates the process of high-power microwave coupling to the target receiving antenna and obtains the high-power microwave coupling parameters;

[0029] In specific practice, the antenna pattern file of the evaluation target is called according to the characteristic parameters of the evaluation target to obtain the antenna coupling power of the evaluation target, and the high-power microwave parameters are obtained by combining the link attenuation, antenna polarization mismatch loss, and adapter loss parameters.

[0030] It should be noted that the coupling path of the high-power microwave front door is mainly the receiving antenna. The receiving antenna pattern is imported through the data input interface, and the antenna parameters are configured to accurately calculate the signal strength entering the target receiver. The antenna parameters are specifically: frequency, high-power microwave incident azimuth and elevation angle.

[0031] It should be noted that the target receiving antenna gain is estimated by the following function:

[0032] , where η is the antenna area utilization efficiency, A is the receiving antenna aperture area, and λ is the high-power microwave wavelength; the antenna aperture, efficiency and other parameters in the solution model are obtained by calling and querying the target characteristic database.

[0033] The receiving antenna port coupling power is calculated by the following formula:

[0034]

[0035] in: is the power density from the antenna aperture to the target, is the target receiving antenna gain, c is the speed of light, and f is the operating frequency of the high-power microwave pulse;

[0036] The injected power in the coupling parameter solution model of the components is calculated by the following formula:

[0037]

[0038] in, is the antenna received power, ——Adapter loss, ——Connection cable loss. According to the above-mentioned component coupling parameter solution model, the injection power reaching the device injection port under different high-power microwave parameters can be accurately obtained. Other parameters such as frequency, pulse width, repetition rate, number of pulses, etc. are obtained through the high-power microwave system unit model and are not affected during the transmission process.

[0039] S300 obtains a damage effect level parameter for evaluating a target sensitive component by processing the high-power microwave coupling parameter;

[0040] In specific practice, high-power microwave coupling parameters are used as input, the damage effect database of the components of the assessment target is called, and based on the simplified high-power microwave damage model, the damage effect level parameters of the assessment target corresponding to different high-power microwave parameters are given.

[0041] It should be noted that the damage effect level parameter of the assessment target is calculated by the following formula:

[0042] ,

[0043] Where, f is the operating frequency of high-power microwave pulse; Inject power into the input port of the target sensitive device; is the high power microwave pulse width; is the number of high-power microwave pulses; is the high power microwave pulse repetition frequency; It is the rising edge of high power microwave pulse.

[0044] It should be noted that by setting high-power microwave pulse parameters, technical indicators of target devices, components, antennas, etc., the high-power microwave damage model can predict the degradation results of key performance indicators of the output system. The damage criteria of the reconnaissance system mainly include: the maximum detection distance of the reconnaissance system is greatly reduced, and the maximum direction-finding error exceeds the system direction-finding accuracy requirements; the system detection power range is greatly reduced and the target cannot be detected; among them, the theoretical maximum detection distance solution model for evaluating the target includes the detection power solution model of the amplitude-comparison direction-finding system, the digital receiver sensitivity calculation formula and the system noise coefficient calculation formula. According to the insertion loss / gain changes of sensitive components under different high-power microwave parameters, the system noise coefficient changes are calculated, and the noise coefficient changes are brought into the receiver sensitivity solution model to obtain the influence of specific high-power microwave pulse parameters on the system receiver sensitivity; the radiation source frequency, transmission power, and antenna aperture are set, and the influence of the maximum detection distance of the system under the action of high-power microwave is analyzed according to the receiver sensitivity changes.

[0045] It should be noted that the noise coefficient of the entire system mainly depends on the noise coefficient of the first-stage link. The later the network, the smaller the impact on the noise coefficient. Therefore, for the first stage, not only a small noise coefficient is desired, but also a large gain is desired to reduce the impact of the later stage noise. It can be deduced that the sensitivity of the receiver is mainly affected by NF in this test. The system noise coefficient is calculated by the following formula:

[0046] NF=NF 1 +(NF 2 -1) / G1+(NF 3 -1) / (G 1 *G 2 )+ ……+(NF n -1) / (G 1 *G 2 *……G n-1 ), where NF n is the noise factor of the nth stage, G n is the gain of the nth stage, and the main influence of high power is NF 1 , that is, the noise coefficient of the sensitive components of the amplitude comparison direction finding system.

[0047] The system receiver sensitivity is calculated by the following formula:

[0048] P s =-114+NF+10*LOG10(6.13*Bv+2.5*SQRT(2*Br*Bv- Bv * Bv))+D+△, where P s is the receiver sensitivity of the amplitude direction finding system, NF is the system noise factor, B r is the RF bandwidth, B vis the video bandwidth, D is the system identification coefficient, and △ is the system channel fluctuation.

[0049] The detection power calculation model of the amplitude comparison direction finding system is obtained by the following formula:

[0050] P r =10*LOG10(P t *1000*1000)+G t -(32.4+20*LOG10(F)+20*LOG10(R))-K 1 -K 2 , where P r is the receiving system interface power, P t is the radar transmitter power, F is the radar transmitter carrier frequency, R is the distance between the radar antenna and the receiving system antenna, K 1 is the additional system loss, K 2 This is the antenna polarization loss, from which we can infer that the decrease in the receiving sensitivity of the receiving system will reduce the reconnaissance power range.

[0051] S400 obtains the degree of decrease in the maximum detection distance of the assessment target and the number of direction-finding accuracy error parameters corresponding to different damage effect levels of the assessment target components according to the damage effect level parameters of the assessment target sensitive components, the theoretical maximum detection distance of the assessment target and the theoretical direction-finding accuracy solution model.

[0052] In specific practice, the actual maximum detection distance and actual direction-finding accuracy of the target are obtained according to the damage effect level parameters of the target.

[0053] It can be understood that the theoretical maximum detection distance and theoretical direction finding accuracy value of the evaluation target are obtained based on the design model of the evaluation target, engineering test experience, and specific test scenarios;

[0054] In specific practice, the degree of decrease in detection distance and direction-finding accuracy error of high-power microwave for the evaluation target are obtained based on the difference between the theoretical maximum detection distance and theoretical direction-finding accuracy of the evaluation target and the actual maximum detection distance and actual direction-finding accuracy of the evaluation target.

[0055] It should be noted that amplitude comparison direction finding is a functional direction finding method that uses overlapping adjacent beams of antennas to receive signals from the same radiation source and determines its direction by comparing the amplitudes of the received signals. Usually, amplitude comparison direction finding uses multiple receiving beams for amplitude comparison direction finding, which is commonly known as multi-beam amplitude comparison direction finding. It determines the angle of arrival of the signal based on the relative amplitude of the signal received by the direction finding antenna. The multi-beam amplitude comparison direction finding system is mainly composed of a multi-beam antenna, a front end, a direction finding receiver, etc. The amplitude comparison direction finding process includes: finding the beam n with the largest signal amplitude in the direction to be measured; reading the signal amplitude values ​​of beam n and the adjacent beams n-1 and n+1; and solving the specific signal direction according to the antenna pattern function.

[0056] Embodiment 2:

[0057] Take the three-beam amplitude comparison direction finding as an example. Assuming the antenna beam shape is Gaussian, we have:

[0058] ,

[0059] in: Indicates the angle between the direction of signal arrival and the direction of the antenna maximum value; is the beam width; K is a constant; therefore, the signal amplitude received by the nth antenna is:

[0060] ,

[0061] in: is the gain of the nth microwave link; is the center beam pointing direction corresponding to the nth path.

[0062] After simplifying the above formula, we can get:

[0063] ,

[0064] Similarly, expand to the two beams next to it:

[0065] ,

[0066] ,

[0067] in, can be regarded as a constant, and when the gain of each antenna is consistent, =, then

[0068] ,

[0069] According to the above formula, the azimuth of the signal can be calculated .

[0070] Usually, antennas, RF channels, amplitude measurement errors, and mounting structures on the link will affect the amplitude direction finding. There are two main aspects of RF that affect the direction finding accuracy: the inconsistency of the microwave link and the microwave noise coefficient lead to increased noise and enlarged direction finding errors.

[0071] According to the direction finding formula:

[0072] ,

[0073] By fully differentiating the formula, we can further analyze the impact of channel inconsistency on direction finding accuracy, which can be expressed as follows:

[0074] ,

[0075] Among them, P L is the receiving power of the left antenna in the direction of the incoming wave, P R is the received power of the antenna on the right side of the radiation source’s incoming wave direction, θ is the azimuth angle of the radiation source signal, is the change value of the receiving power of the left antenna of the system, is the change value of the received power of the antenna on the right side of the system. Under the action of high-power microwaves, the change in the gain / insertion loss of the components at the front end of the receiver channel causes the change in the received power of the receiver direction finding channel, which in turn causes the change in the direction finding accuracy of the amplitude comparison direction finding system.

[0076] Embodiment 4:

[0077] like Figure 2 A damage effect assessment method is shown, which is used to assess the error caused by high-power microwaves to an assessment target, including: setting the type of assessment target and target characteristic parameters; calculating the coupled power of the receiving antenna of the assessment target; solving the high-power microwave parameters injected into the assessment target port; solving the damage effect obtained on the assessment target to determine whether the assessment target is damaged. If the assessment target is not damaged, the assessment ends. If the assessment target is damaged, the components of the assessment target are solved to obtain the gain / insertion loss changes of the components, and the changes of the components are further solved. The maximum detection distance of the assessment target is solved through the noise coefficient and the receiver sensitivity, and the direction finding accuracy is calculated through the channel receiving power to complete a damage effect assessment.

[0078] This embodiment provides a damage effect assessment system. Figure 3 As shown, including:

[0079] The target characteristic parameter model 100 is used to configure the electromagnetic characteristic parameters such as the frequency, polarization mode, aperture area, antenna utilization rate, etc. of the evaluation target and the transmission attenuation parameters such as transmission cable loss and polarization mismatch loss according to the actual situation, and to set the carrier frequency, antenna gain, transmission power, and distance parameters between the radar antenna and the receiving antenna of the simulated radiation source in the parameter configuration interface;

[0080] The damage calculation model 200 takes the high-power microwave pulse parameters entering the evaluation target as input, combines the target high-power microwave damage effect database, and based on the simplified high-power microwave damage model, gives the damage effect level parameters of the target components and the whole machine under different high-power microwave parameters;

[0081] The damage effect assessment model 300 includes a theoretical maximum detection distance calculation model 310 and a theoretical direction finding accuracy calculation model 320 of the assessment target.

[0082] With the above settings, the damage effect assessment system is based on software radio theory and actual engineering experience. Through software simulation of the receiver channel link model, the normal working signal is input into the normal receiver signal processing link and the digital prototype respectively to obtain the performance index parameters under the actual working conditions of the system; the index parameters of the receiving front-end device are replaced by the device high-power microwave damage effect prediction model, and the performance index changes of the electronic reconnaissance receiving system under different high-power microwave pulse parameters are evaluated. The system performance index parameters under normal working conditions are compared, and the effect of the high-power microwave contrast amplitude direction finding system is evaluated.

[0083] In the damage effect assessment system of this embodiment, if Figure 4 As shown in Figure 1, the damage effect assessment model includes:

[0084] The theoretical maximum detection distance calculation model of the target is evaluated, including the detection power calculation model of the amplitude comparison direction finding system, the sensitivity calculation model of the digital receiver, the system noise coefficient calculation model, and the calculation model of the system noise coefficient change after the target is damaged;

[0085] The theoretical maximum detection range calculation model of the evaluation target is used to obtain the power range, digital receiver sensitivity, noise coefficient, and noise coefficient change after component damage.

[0086] Theoretical direction finding accuracy calculation model, including signal azimuth calculation model, RF channel impact on direction finding accuracy calculation model, and direction finding inconsistency impact on direction finding accuracy model;

[0087] The theoretical direction finding accuracy calculation model is used to obtain the signal azimuth, the influence of the radio frequency channel on the direction finding accuracy, and the influence of direction finding inconsistency on the direction finding accuracy.

[0088] In the damage effect assessment system of this embodiment, the damage effect assessment system includes: a data layer, which is used to provide parameter storage and read and write functions; an application layer, which implements parameter calculation processing; and a user layer, which implements user interaction functions.

[0089] This embodiment provides a computer-readable storage medium, in which computer-readable instructions are stored. When the computer-readable instructions are executed on a communication device, the above method is executed.

[0090] This embodiment provides a damage effect assessment device, which includes computer-readable instructions. When the computer-readable instructions are run on a digital simulation platform, the above method is executed.

[0091] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0092] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0093] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0094] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0095] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for evaluating the damage effect of an amplitude comparison direction finding system HPM, used to evaluate the error caused by high-power microwaves to an evaluation target, characterized in that: include: Set the evaluation target characteristic parameters; Simulate and evaluate the process of high-power microwave coupling to the target receiving antenna and obtain the high-power microwave coupling parameters; By processing the high-power microwave coupling parameters, a damage effect level parameter for evaluating target sensitive components is obtained; According to the damage effect level parameters of the sensitive components of the assessment target, the theoretical maximum detection distance of the assessment target and the theoretical direction-finding accuracy solution model, the maximum detection distance reduction degree and direction-finding accuracy error parameters of the assessment target corresponding to different damage effect levels of the assessment target components are obtained.

2. The damage effect assessment method of the HPM system according to claim 1 is characterized in that: The evaluation target characteristic parameters include: Electromagnetic characteristic parameters, transmission attenuation parameters, carrier frequency of the radiation source, antenna gain, transmission power, and the distance between the radar antenna and the receiving antenna; Among them, the electromagnetic characteristic parameters include: frequency, polarization mode, aperture area, and antenna utilization of the evaluation target; the transmission attenuation parameters include: transmission cable loss and polarization mismatch loss.

3. The damage effect assessment method of the HPM system according to claim 1 is characterized in that: The method for simulating and evaluating the process of coupling high-power microwaves to the target receiving antenna and obtaining the high-power microwave coupling parameters is as follows: The antenna pattern file of the evaluation target is called according to the characteristic parameters of the evaluation target to obtain the antenna coupling power of the evaluation target. The high-power microwave parameters are obtained by combining the link attenuation, antenna polarization mismatch loss, and adapter loss parameters.

4. The damage effect assessment method of the HPM system according to claim 1 is characterized in that: The method for obtaining the damage effect level parameters of the sensitive components of the evaluation target by processing the high-power microwave coupling parameters is as follows: taking the high-power microwave parameters as input, calling the damage effect database of the components of the evaluation target, and based on the simplified high-power microwave damage model, giving the damage effect level parameters of the evaluation target corresponding to different high-power microwave parameters.

5. The damage effect assessment method of the HPM system according to claim 1 is characterized in that: The method for obtaining the maximum detection range reduction degree and direction finding accuracy error parameter difference of the evaluation target corresponding to different damage effect levels of the evaluation target component includes: The actual maximum detection distance and actual direction finding accuracy of the assessed target are obtained according to the damage effect level parameters of the assessed target; According to the design model of the evaluation target, engineering test experience, and specific test scenarios, the theoretical maximum detection distance and theoretical direction finding accuracy of the evaluation target are obtained; According to the difference between the theoretical maximum detection distance and theoretical direction finding accuracy of the evaluation target and the actual maximum detection distance and actual direction finding accuracy of the evaluation target, the degree of decrease in the detection distance of the evaluation target and the direction finding accuracy error of the high-power microwave are obtained.

6. A damage effect assessment system, characterized in that: The damage effect assessment method for the HPM system of amplitude comparison direction finding according to any one of claims 1 to 5 is adopted, wherein the damage effect assessment system comprises: The target characteristic parameter model is used to configure the frequency, polarization mode, aperture area, antenna utilization electromagnetic characteristic parameters of the evaluation target, as well as transmission cable loss, polarization mismatch loss transmission attenuation parameters according to actual conditions, and set the carrier frequency, antenna gain, transmission power, and distance between the radar antenna and the receiving antenna of the simulated radiation source in the parameter configuration interface; The damage calculation model takes the high-power microwave pulse parameters entering the evaluation target as input, combines the target high-power microwave damage effect database, and based on the simplified high-power microwave damage model, gives the damage effect level parameters of the target components and the whole machine under different high-power microwave parameters; The damage effect assessment model includes a theoretical maximum detection distance calculation model and a theoretical direction finding accuracy calculation model for the assessment target.

7. The damage effect assessment system according to claim 6, characterized in that: The damage effect assessment model includes: The theoretical maximum detection distance calculation model of the evaluation target includes the detection power calculation model of the amplitude comparison direction finding system, the digital receiver sensitivity calculation model, the system noise coefficient calculation model and the system noise coefficient change calculation model after the evaluation target is damaged; the theoretical maximum detection distance calculation model of the evaluation target is used to obtain the power range, digital receiver sensitivity, noise coefficient, and noise coefficient change after the component is damaged of the evaluation target; The theoretical direction finding accuracy solution model includes a signal azimuth solution model, a radio frequency channel impact on direction finding accuracy solution model, and a direction finding inconsistency impact on direction finding accuracy model; the theoretical direction finding accuracy solution model is used to obtain the signal azimuth, the radio frequency channel impact on direction finding accuracy, and the direction finding inconsistency impact on direction finding accuracy.

8. The damage effect assessment system according to claim 6, characterized in that: The damage effect assessment system comprises: The data layer is used to provide parameter storage and read and write functions; An application layer, which implements parameter calculation and processing; A user layer, wherein the user layer implements a user interaction function.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-readable instructions, and when the computer-readable instructions are executed on the communication device, the method according to any one of claims 1 to 5 is executed.

10. A damage effect assessment device, characterized in that: The damage effect assessment device includes computer-readable instructions. When the computer-readable instructions are run on a digital simulation platform, the method described in any one of claims 1 to 5 is executed.

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