Striking hit precision test method, device, equipment and medium

Abstract

The invention discloses a hit accuracy testing method, device and equipment and a medium, and relates to the technical field of testing of aircrafts with a hit function. Calculating a target circular domain radius through two-dimensional normal distribution statistics when the impact probability of the aircraft to be inspected is the target impact probability; determining a hit circle by taking the target center as a circle center and the radius of the target circle domain as a radius; if the single aircraft to be inspected falls into the hit circle, determining that the strike succeeds, otherwise, determining that the strike fails; calculating a criterion number according to the target impact probability, a set impact probability lower limit value and a test subsample number of the aircraft to be inspected, and determining an impact accuracy inspection result according to the criterion number and the successful impact number; the successful strike number is the statistical magnitude of successful strike after the test subsample number of the aircrafts to be tested are subjected to the strike test. According to the invention, the effectiveness of hit accuracy test is improved.

Description

Technical Field

[0001] The present application relates to the technical field of inspection of aircraft with strike capabilities, and in particular to a method, device, equipment and medium for inspecting strike accuracy. Background Art

[0002] The circular error probability (CEP) is one of the most important combat technical indicators of land strike aircraft, and is also one of the key assessment indicators for equipment identification and finalization. Usually, the circular error probability (CEP) is defined as "the radius of the circle with a 50% probability of hitting the target point as the center." At present, the evaluation methods of CEP index can be divided into two categories: Method 1 is based on military standards such as GJB 6289-2008 "Method for Evaluation of Hit Accuracy of Ground-to-Surface Ballistic Missiles" and GJB 8271.2-2015 "Method for Performance Evaluation of Land-based Cruise Missile Weapon System: Hit Accuracy". By collecting the lateral deviation and longitudinal deviation of the aircraft landing point relative to the target point, substituting them into cumbersome formulas to calculate the point estimate, confidence interval estimate and confidence upper limit estimate of CEP, and then comparing them with the index value; Method 2 takes "50% probability of impact" as the test target, and draws a hit circle with CEP as the radius. In the test, if the aircraft falls into the hit circle, it is judged as a success, and if it falls outside the hit circle, it is judged as a failure. By counting the number of successes and failures, the binomial distribution classical hypothesis test method is used to determine whether the probability of the aircraft falling into the hit circle meets 50%.

[0003] However, in practice, it is found that for multi-purpose aircraft that can perform sea, land and air defense, due to their high price and non-repeatable characteristics, the number of sub-samples that can be used to evaluate the circular error probability index for land is very small. When the number of sub-samples is only 1-2, the above two CEP evaluation methods cannot give an evaluation conclusion. The main reasons are as follows:

[0004] (1) For method 1, the number of sub-samples must be greater than or equal to 3. If there are only 1-2 sub-samples, the CEP statistical value cannot be obtained.

[0005] (2) For method 2, the target value of the probability of hitting is 0.5, the minimum acceptable value is 0.4, and the detection ratio is 1.25. The test schemes obtained by using the binomial distribution classical hypothesis test method are "3 shots 20%" and "2 shots 10%". However, the risks of the manufacturer are 0.5 and 0.25, and the risks of the user are 0.35 and 0.64. At this time, the risks of both parties are far from the actual risk values ​​of both parties, that is, the risk values ​​of both parties cannot be accurately reflected.

[0006] In summary, the above two methods both have problems in solving the situation where the number of sub-samples is less than or equal to 2. It is urgent to optimize the traditional assessment methods to support the proposal of inspection plans with reasonable risks for both parties. Summary of the invention

[0007] The purpose of the present application is to provide a method, device, equipment and medium for testing the accuracy of a strike, which improves the effectiveness of the test of the accuracy of a strike when the number of test sub-samples is small.

[0008] To achieve the above objectives, this application provides the following solutions:

[0009] In a first aspect, the present application provides a method for checking the accuracy of a strike, including:

[0010] According to the target impact probability of the aircraft to be inspected, the radius of the target circle when the impact probability of the aircraft to be inspected is equal to the target impact probability is calculated by two-dimensional normal distribution statistics;

[0011] The target bull's eye is taken as the center of the circle and the radius of the target circle is taken as the radius to determine the hit circle; if a single aircraft to be inspected falls into the hit circle, it is determined that the strike is successful, otherwise it is determined that the strike fails;

[0012] The number of criteria is calculated based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, and the strike accuracy test result is determined based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test is carried out on the number of test sub-samples of the aircraft to be tested.

[0013] Optionally, according to the target impact probability of the aircraft to be inspected, calculating the target circle radius when the impact probability of the aircraft to be inspected is the target impact probability through two-dimensional normal distribution statistics, specifically includes:

[0014] According to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, a theoretical standard deviation is calculated by two-dimensional normal distribution statistics;

[0015] The target circle radius when the target impact probability is determined according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected.

[0016] Optionally, according to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, a theoretical standard deviation is calculated by two-dimensional normal distribution statistics, specifically including:

[0017] According to the formula Calculate the theoretical standard deviation;

[0018] Among them, σ0 is the theoretical standard deviation, R0 is the circular error probability index value, and p0 is the impact probability corresponding to the circular error probability index value.

[0019] Optionally, determining the target circle radius when the target impact probability is determined according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected specifically includes:

[0020] According to the formula The radius of the target circle when calculating the target impact probability;

[0021] Wherein, R1 is the radius of the target circle, σ0 is the theoretical standard deviation, and p1 is the target impact probability.

[0022] Optionally, the number of criteria is calculated according to the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, specifically including:

[0023] According to the formula Calculate the number of criteria;

[0024]

[0025] Wherein, K is the number of criteria, λ is the detection ratio, d is the discrimination ratio, N is the number of test samples, and p 10 To set the lower limit of the probability of impact, p 10 =λp1, p1 is the target hitting probability.

[0026] Optionally, determining the strike accuracy test result according to the number of criteria and the number of successful strikes specifically includes:

[0027] If the number of successful strikes is greater than the criterion number, the accuracy of the aircraft to be inspected is determined to be qualified; otherwise, the accuracy of the aircraft to be inspected is determined to be unqualified.

[0028] Optionally, after calculating the number of criteria according to the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be inspected, and determining the strike hit accuracy inspection result according to the number of criteria and the number of successful strikes, the strike hit accuracy inspection method further includes:

[0029] According to the target impact probability, the lower limit of the impact probability and the number of criteria, the binomial distribution classical hypothesis test method is used to determine the production risk and the user risk, including:

[0030] According to the formula Calculate production risk;

[0031] According to the formula Calculate user risk;

[0032] Among them, α is the manufacturer's risk, K is the number of criteria, N is the number of test samples, p1 is the target impact probability; β is the user's risk, p 10 To set the lower limit of the probability of impact, is the number of combinations of taking i out of N aircraft to be inspected.

[0033] In a second aspect, the present application provides a strike accuracy inspection device, comprising:

[0034] The target circle radius determination module is used to calculate the target circle radius when the impact probability of the aircraft to be tested is the target impact probability through two-dimensional normal distribution statistics according to the target impact probability of the aircraft to be tested.

[0035] The hit circle determination module is used to determine the hit circle with the target bull's eye as the center and the target circle radius as the radius; if a single aircraft to be inspected falls into the hit circle, it is determined that the strike is successful, otherwise it is determined that the strike fails.

[0036] The accuracy inspection module is used to calculate the number of criteria based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be inspected, and determine the strike hit accuracy inspection result based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test of the number of test sub-samples of the aircraft to be inspected.

[0037] In a third aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of any one of the above-described methods for verifying the accuracy of a strike.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described methods for verifying the accuracy of a strike.

[0039] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0040] The present application provides a method, device, equipment and medium for testing the accuracy of strikes. According to the target impact probability of an aircraft to be tested, the radius of a target circle when the impact probability of the aircraft to be tested is the target impact probability is calculated by two-dimensional normal distribution statistics; a hit circle is determined with the target bull's eye as the center and the target circle radius as the radius, a criterion number is calculated according to the target impact probability, a set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, a strike accuracy test result is determined according to the criterion number and the number of successful strikes, a binomial distribution classical hypothesis test method is used according to the target impact probability, the set lower limit of the impact probability and the criterion number, the risk of the producer and the risk of the user are determined, and flexible adjustment of the target impact probability and the corresponding hit circle is achieved, thereby obtaining the criterion number used for the accuracy test result, solving the problem that the CEP statistical value cannot be obtained due to a small number of sub-samples, improving the effectiveness of the accuracy test, and the method is simple and highly operable. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A flowchart of a method for checking the accuracy of a strike provided by an embodiment of the present application;

[0043] Figure 2 A schematic diagram of functional modules of a strike accuracy inspection device provided in one embodiment of the present application;

[0044] Figure 3 A schematic diagram of the structure of a computer device provided in one embodiment of the present application.

[0045] Reference numerals: DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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 are within the scope of protection of this application.

[0047] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0048] This application provides a method for checking the accuracy of a strike. Figure 1 As shown, the attack hit accuracy inspection method includes:

[0049] Step 101: According to the target impact probability of the aircraft to be inspected, the target circle radius when the impact probability of the aircraft to be inspected is equal to the target impact probability is calculated by two-dimensional normal distribution statistics.

[0050] Step 102: Determine a hit circle with the target bull's eye as the center and the target circle radius as the radius; if a single aircraft to be inspected falls into the hit circle, the strike is determined to be successful, otherwise the strike is determined to be a failure.

[0051] Step 103: Calculate the number of criteria based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, and determine the strike accuracy test result based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test of the number of test sub-samples of the aircraft to be tested.

[0052] Step 104: According to the target impact probability, the set impact probability lower limit value and the criterion number, the binomial distribution classical hypothesis test method is used to determine the production party risk and the user party risk.

[0053] The calculation formula of circular error probability is, CEP = k × R, CEP is circular error probability, k is a constant, R is the range of the missile or rocket, and the value of k depends on the accuracy of the weapon system and the size of the target. Generally speaking, the smaller the value of k, the higher the accuracy of the weapon system.

[0054] The present application realizes flexible adjustment of the target impact probability and the corresponding hit circle, thereby obtaining the number of criteria for precision inspection results, solving the problem that the CEP statistical value cannot be obtained due to a small number of sub-samples, and being able to obtain effective precision inspection results and risk assessment structures for manufacturers and users, and the method is simple and highly operational.

[0055] Aircraft in this application includes missiles and rockets.

[0056] This application transforms the assessment problem based on "fixed hit probability of 50%" into an assessment problem based on "variable hit probability p1", and then supports the test party to propose a more reasonable inspection plan to ensure that the risks of the generator and the user are similar. The ideas are summarized as follows: the first step is to determine the desired probability p1 according to the test design; the second step is to obtain the circle radius R1 corresponding to the hit probability p1 through two-dimensional normal distribution statistical calculation. At this time, if p1≠0.5, then R1≠CEP; the third step is to draw a hit circle with R1 as the radius to determine the success or failure criterion of a single aircraft: "the aircraft falls into the hit circle R1 and is judged as a success, otherwise it is a failure"; the fourth step is to determine the inspection plan and the risks of both parties based on the clear number of test sub-samples and the binomial distribution classical hypothesis test method.

[0057] Wherein, step 101 specifically includes:

[0058] According to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, the theoretical standard deviation is calculated through two-dimensional normal distribution statistics.

[0059] The target circle radius when the target impact probability is determined according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected.

[0060] Assume that the lateral deviation X and longitudinal deviation Y of the aircraft landing point obey normal distribution and are denoted as Combined with engineering experience, it is generally assumed that μ1=μ2=0, σ1=σ2=σ0, and the two errors are independent of each other.

[0061] If the CEP index value of a certain type of aircraft is R0, the corresponding probability of impact is p0=0.5.

[0062] According to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, the theoretical standard deviation is calculated by two-dimensional normal distribution statistics, specifically including:

[0063] According to the formula Calculate the theoretical standard deviation.

[0064] Among them, σ0 is the theoretical standard deviation, R0 is the circular error probability index value, and p0 is the impact probability corresponding to the circular error probability index value.

[0065] The target circle radius when determining the target impact probability according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected specifically includes:

[0066] According to the formula The target circle radius when the target impact probability is calculated.

[0067] Among them, R1 is the radius of the target circle, σ0 is the theoretical standard deviation, p1 is the target impact probability, p1 is the set value, and p1 takes a value between 0.6-0.7.

[0068] Among them, step 102 determines the success or failure criterion of the test of a single aircraft to be tested: if the single aircraft to be tested falls into the hit circle, the strike is determined to be successful, otherwise it is determined to be a failure.

[0069] Set the lower limit of the probability of impact to be expressed as p 10 =λp1.

[0070] Wherein, step 103 specifically includes:

[0071] According to the formula Calculate the number of criteria.

[0072]

[0073] Where K is the number of criteria, λ is the detection ratio, λ<1, d is the discrimination ratio, N is the number of test samples, p 10 is to set the lower limit of the probability of hitting the target, and p1 is the probability of hitting the target.

[0074] The binomial distribution classical hypothesis test method is adopted. After N tests are completed, the number of successful strikes in the test is counted. If the number of successful strikes is greater than the criterion number, the accuracy of the aircraft to be tested is determined to be qualified; otherwise, the accuracy of the aircraft to be tested is determined to be unqualified.

[0075] After step 103, the strike accuracy test method further includes: according to the target impact probability, the set lower limit of the impact probability and the number of criteria, using the binomial distribution classical hypothesis test method to determine the production party risk and the user party risk, specifically including:

[0076] According to the formula Calculate production risk.

[0077] According to the formula Calculate user risk.

[0078] Among them, α is the manufacturer's risk, K is the number of criteria, N is the number of test samples, p1 is the target impact probability; β is the user's risk, p 10 To set the lower limit of the probability of impact, is the number of combinations of taking i out of N aircraft to be inspected.

[0079] In an exemplary embodiment, for a certain type of aircraft, the CEP index value of the hit accuracy is 50m. Considering the economic cost, only two test samples are arranged. In order to determine the inspection plan that satisfies both parties, the following steps are implemented:

[0080] (1) According to the experimental design, the proposed impact probability p1=0.6 is determined.

[0081] (2) Using the formula The theoretical standard deviation in the horizontal and vertical directions is calculated as σ0 = 42.47 m.

[0082] (3) Using the formula The radius of the hitting circle corresponding to p1 is R1=57.49m.

[0083] (4) A hit circle with a radius of R1 = 57.49 m is drawn. If a single aircraft falls within the hit circle R1, it is considered a success; otherwise, it is considered a failure.

[0084] (5) Using the formula Taking the detection ratio λ=2 / 3, the inspection plan can be obtained as "3 shots 20% hit", that is, when the results of "2 shots 20% hit" or "3 shots 20% hit" appear in the test, it is judged that the aircraft hit accuracy meets the index requirements, otherwise, it is judged that it does not meet the index requirements.

[0085] (6) Using the calculation formula of producer risk and user risk, we can obtain that using this inspection scheme, the producer risk α = 0.352, and the user risk β = 0.352.

[0086] Based on the same inventive concept, the embodiment of the present application also provides a strike hit accuracy inspection device for implementing the strike hit accuracy inspection method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more strike hit accuracy inspection device embodiments provided below can refer to the limitations of the strike hit accuracy inspection method above, and will not be repeated here.

[0087] In an exemplary embodiment, Figure 2 As shown, a striking accuracy inspection device is provided, comprising:

[0088] The target circle radius determination module 201 is used to calculate the target circle radius when the impact probability of the aircraft to be inspected is the target impact probability through two-dimensional normal distribution statistics.

[0089] The hit circle determination module 202 is used to determine the hit circle with the target bull's eye as the center and the target circle radius as the radius; if a single aircraft to be inspected falls into the hit circle, it is determined that the strike is successful, otherwise it is determined that the strike fails.

[0090] The accuracy test module 203 is used to calculate the number of criteria based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, and determine the strike hit accuracy test result based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test of the number of test sub-samples of the aircraft to be tested.

[0091] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 3 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store strike hit accuracy inspection data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a strike hit accuracy inspection method is implemented.

[0092] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components. In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0093] In an exemplary embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0094] In an exemplary embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0095] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0096] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0097] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a data processing logic of a programmable logic device, etc., but is not limited thereto.

[0098] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for testing the accuracy of a strike, characterized in that: The strike hit accuracy inspection method comprises: According to the target impact probability of the aircraft to be inspected, the radius of the target circle when the impact probability of the aircraft to be inspected is equal to the target impact probability is calculated by two-dimensional normal distribution statistics; The target bull's eye is taken as the center of the circle and the radius of the target circle is taken as the radius to determine the hit circle; if a single aircraft to be inspected falls into the hit circle, it is determined that the strike is successful, otherwise it is determined that the strike fails; The number of criteria is calculated based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, and the strike accuracy test result is determined based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test is carried out on the number of test sub-samples of the aircraft to be tested.

2. The method for checking the accuracy of hitting according to claim 1, characterized in that: According to the target impact probability of the aircraft to be inspected, the target circle radius when the impact probability of the aircraft to be inspected is the target impact probability is calculated by two-dimensional normal distribution statistics, specifically including: According to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, a theoretical standard deviation is calculated by two-dimensional normal distribution statistics; The target circle radius when the target impact probability is determined according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected.

3. The method for checking the accuracy of hitting according to claim 2, characterized in that: According to the circular error probability index value of the aircraft to be inspected and the impact probability corresponding to the circular error probability index value, the theoretical standard deviation is calculated by two-dimensional normal distribution statistics, specifically including: According to the formula Calculate the theoretical standard deviation; Among them, σ0 is the theoretical standard deviation, R0 is the circular error probability index value, and p0 is the impact probability corresponding to the circular error probability index value.

4. The method for checking the accuracy of hitting according to claim 2, characterized in that: The target circle radius when determining the target impact probability according to the theoretical standard deviation and the target impact probability of the aircraft to be inspected specifically includes: According to the formula The radius of the target circle when calculating the target impact probability; Wherein, R1 is the radius of the target circle, σ0 is the theoretical standard deviation, and p1 is the target impact probability.

5. The method for checking the accuracy of hitting according to claim 1, characterized in that: The number of criteria is calculated based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be tested, including: According to the formula Calculate the number of criteria; Wherein, K is the number of criteria, λ is the detection ratio, d is the discrimination ratio, N is the number of test samples, and p 10 To set the lower limit of the probability of impact, p 10 =λp1, p1 is the target hitting probability.

6. The method for checking the accuracy of hitting according to claim 1, characterized in that: The hit accuracy test result is determined according to the number of criteria and the number of successful hits, specifically including: If the number of successful strikes is greater than the criterion number, the accuracy of the aircraft to be inspected is determined to be qualified; otherwise, the accuracy of the aircraft to be inspected is determined to be unqualified.

7. The method for checking the accuracy of hitting according to claim 1, characterized in that: After calculating the number of criteria according to the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be inspected, and determining the strike hit accuracy inspection result according to the number of criteria and the number of successful strikes, the strike hit accuracy inspection method further includes: According to the target impact probability, the lower limit of the impact probability and the number of criteria, the binomial distribution classical hypothesis test method is used to determine the production risk and the user risk, including: According to the formula Calculate production risk; According to the formula Calculate user risk; Among them, α is the manufacturer's risk, K is the number of criteria, N is the number of test samples, p1 is the target impact probability; β is the user's risk, p 10 To set the lower limit of the probability of impact, C i N is the number of combinations of taking i out of N aircraft to be inspected.

8. A device for testing the accuracy of hitting, characterized in that: The strike hit accuracy inspection device comprises: A target circle radius determination module is used to calculate the target circle radius when the impact probability of the aircraft to be inspected is the target impact probability through two-dimensional normal distribution statistics according to the target impact probability of the aircraft to be inspected; A hit circle determination module is used to determine the hit circle with the target bull's eye as the center and the target circle radius as the radius; if a single aircraft to be inspected falls into the hit circle, it is determined that the strike is successful, otherwise it is determined that the strike fails; The accuracy inspection module is used to calculate the number of criteria based on the target impact probability, the set lower limit of the impact probability and the number of test sub-samples of the aircraft to be inspected, and determine the strike hit accuracy inspection result based on the number of criteria and the number of successful strikes; the number of successful strikes is a statistic of successful strikes after the strike test of the number of test sub-samples of the aircraft to be inspected.

9. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the strike accuracy inspection method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the strike hit accuracy inspection method described in any one of claims 1 to 7 is implemented.

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