A hit effectiveness-based strike closed-loop precision allocation method and system

Abstract

The application belongs to the technical field of task coordination processing, and particularly relates to a hitting closed-loop precision allocation method and system based on hitting efficiency. The method comprises the following steps: S1, acquiring a pre-constructed guidance element knowledge base, wherein the guidance element knowledge base comprises the types of guidance platforms and the precision attributes of guidance information that can be provided by the guidance platforms; S2, determining a hitting link use scenario facing a target object, and acquiring a specified hitting efficiency threshold; S3, selecting, from a pre-set precision allocation scheme database, a precision allocation scheme corresponding to the use scenario and meeting the hitting efficiency threshold, wherein each precision allocation scheme comprises multiple guidance stages, and each guidance stage has multiple guidance information; and S4, for each guidance stage in the screened precision allocation scheme, selecting a corresponding guidance platform according to the precision attribute of the guidance information. The application can quickly select a suitable guidance platform.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of task coordination processing, and particularly relates to a hitting closed-loop precision allocation method and system based on hitting efficiency. BACKGROUND

[0002] During the execution of a task, an aircraft usually completes the task by constructing a hitting process link, and the process of completing the target task is decomposed into an ordered link of multiple links. Different links in the ordered link can be assisted by multiple platforms. For example, in the hitting link of sending a projectile to a target by an aircraft, the flight process of the projectile from leaving the aircraft body to approaching the target with flight guidance control is guided by other early warning aircraft, unmanned aerial vehicles or space-based reconnaissance satellites. The detection information of the target by each guidance platform has different precision, and different precision guidance platforms need to be allocated at different stages during the execution of the task to complete the closed loop of the hitting link.

[0003] The existing technology is generally a single platform that completes the flight guidance described above, which is different from the current multi-guidance platform guidance scenario, and no technical solution for collaborative execution according to the target detection precision of the guidance platform has appeared. SUMMARY

[0004] In order to solve the above problems, the application provides a hitting closed-loop precision allocation method and system based on hitting efficiency, to solve the closed-loop precision design and allocation of the multi-element collaborative execution of the hitting link in the flight process of the super-long-range projectile.

[0005] The first aspect of the application provides a hitting closed-loop precision allocation method based on hitting efficiency, mainly comprising:

[0006] Step S1, acquiring a pre-constructed guidance element knowledge base, the guidance element knowledge base containing the types of each guidance platform and the precision attributes of the guidance information that each guidance platform can provide;

[0007] Step S2, determining a hitting link use scenario facing a target object, and acquiring a specified hitting efficiency threshold;

[0008] Step S3, selecting an accuracy allocation scheme corresponding to the use scenario and meeting the hitting efficiency threshold from a pre-set accuracy allocation scheme database, wherein each accuracy allocation scheme includes multiple guidance stages, and each guidance stage has multiple guidance information;

[0009] Step S4, selecting a corresponding guidance platform for each guidance stage in the screened accuracy allocation scheme according to the precision attribute of the guidance information.

[0010] Preferably, in step S1, the precision attribute of the guidance information comprises transmission delay, transmission period and target error.

[0011] Preferably, step S3 further comprises:

[0012] Step S31, configure the use scenario of the strike link, which comprises setting the target element and setting the guided projectile element;

[0013] Step S32, for each use scenario configured, construct a precision allocation scheme composed of multiple guidance stages, wherein the process of projecting the guided projectile to the target is divided into multiple guidance stages, and each guidance stage comprises multiple guidance information.

[0014] Step S33, determine the projectile hit efficiency of each precision allocation scheme of each scene through simulation test, and construct a precision allocation scheme database, which comprises multiple use scenarios, each use scenario contains multiple precision allocation schemes, and each precision allocation scheme contains multiple guidance information.

[0015] Preferably, in step S33, multiple precision allocation schemes are used in parallel to speed up the simulation test process.

[0016] Preferably, in step S33, the projectile hit efficiency is calculated by the following formula:

[0017] Epi=Kpi / Mpi;

[0018] Wherein, Epi is the projectile hit efficiency of the pi-th precision allocation scheme, Kpi is the number of hits in the simulation test result of the pi-th precision allocation scheme, and Mpi is the number of Monte Carlo test times of the pi-th precision allocation scheme.

[0019] The second aspect of the application provides a hit efficiency-based strike closed-loop precision allocation system, which mainly comprises:

[0020] A guidance platform parameter acquisition module is configured to acquire a pre-constructed guidance element knowledge base, wherein the guidance element knowledge base contains the types of guidance platforms and the precision attributes of guidance information that can be provided by the guidance platforms.

[0021] A strike link parameter acquisition module is configured to determine the use scenario of the strike link facing the target object, and acquire a specified hit efficiency threshold.

[0022] The precision allocation scheme selection module is configured to select a precision allocation scheme corresponding to the use scenario and satisfying the hit performance threshold from a preset precision allocation scheme database, wherein each precision allocation scheme comprises a plurality of guidance stages, and each guidance stage has a plurality of guidance information.

[0023] The guidance platform selection module is configured to select a corresponding guidance platform according to the precision attribute of the guidance information for each guidance stage in the screened precision allocation scheme.

[0024] The present application fully considers the precision influencing elements of each guidance platform in the system cooperative task execution background, uses the hit performance as an evaluation index, can quickly select a suitable guidance platform, and improves the cooperative efficiency and reliability of the strike link. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a flowchart of a preferred embodiment of the strike closed-loop precision allocation method based on the hit performance of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below in combination with the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0027] The first aspect of the present application provides a strike closed-loop precision allocation method based on hit performance, as shown in Figure 1 The method comprises the following steps:

[0028] Step S1, acquire a pre-constructed guidance element knowledge base, wherein the guidance element knowledge base contains the types of each guidance platform and the precision attributes of the guidance information that each guidance platform can provide.

[0029] In some optional embodiments, in step S1, the precision attribute of the guidance information comprises transmission delay, transmission period and target error.

[0030] In step S1, the present application constructs a guidance element knowledge base, and uses the above-mentioned guidance information as a retrieval keyword, which facilitates subsequent screening of a suitable guidance platform according to specific guidance requirements.

[0031] Step S2, determine the strike link use scenario facing the target object, and obtain the specified hit performance threshold.

[0032] This step sets an acceptable hit performance threshold for a specific strike link use scenario.

[0033] Step S3, select the accuracy allocation scheme corresponding to the use scenario and meeting the hit performance threshold from the preset accuracy allocation scheme database, wherein each accuracy allocation scheme includes multiple guidance stages, and each guidance stage has multiple guidance information.

[0034] It should be noted that after obtaining the hit performance threshold, step S3 does not select the guidance platform from the guidance element knowledge base of step S1, but determines the accuracy allocation scheme meeting the hit performance threshold, so it is necessary to construct multiple accuracy allocation schemes in advance to form the accuracy allocation scheme database. The accuracy allocation scheme database has multiple use scenarios, and each use scenario has multiple accuracy allocation schemes. In this way, the use scenario of the task type can be determined first, and then the appropriate accuracy allocation scheme is selected under the use scenario.

[0035] In some optional embodiments, step S3 further includes constructing multiple accuracy allocation schemes, specifically including:

[0036] Step S31, configure the use scenario of the strike link, and the use scenario configuration includes the setting of the target element and the setting of the guidable projectile element;

[0037] Step S32, for each configured use scenario, construct an accuracy allocation scheme composed of multiple guidance stages, wherein the process of projecting the guided projectile to the target is divided into multiple guidance stages, and each guidance stage includes multiple guidance information;

[0038] Step S33, determine the projectile hit performance of each accuracy allocation scheme of each scene through simulation test, and construct an accuracy allocation scheme database, wherein the accuracy allocation scheme database includes multiple use scenarios, each use scenario contains multiple accuracy allocation schemes, and each accuracy allocation scheme contains multiple guidance information.

[0039] First, in step S31, the use scenario configuration of the strike link is determined, that is, some external factors of the strike link that do not involve the detection accuracy of the guidance platform are completed, such as some attributes of the target where the projectile finally reaches or some attributes of the projectile itself. Each use scenario will construct multiple accuracy allocation schemes.

[0040] The core of the attack closed-loop precision design and distribution is to configure the guidance phase in the attack closed-loop. In step S32, a set of configurations including the guidance phase, the transmission delay, the transmission period and the target error is combined to form a precision distribution scheme, denoted as p. The guidance phase is usually represented by the distance between the projectile and the target. An example of a precision distribution scheme is as follows:

[0041] Guidance phase 1: the distance range is 250 km-150 km, the transmission delay is 100 ms, the transmission period is 5000 ms, and the target error is 3000 m;

[0042] Guidance phase 2: the distance range is 150 km-80 km, the transmission delay is 50 ms, the transmission period is 2000 ms, and the target error is 1000 m;

[0043] Guidance phase 3: the distance range is 80 km-30 km, the transmission delay is 50 ms, the transmission period is 1000 ms, and the target error is 500 m.

[0044] The plurality of precision distribution schemes configured for each use scenario are denoted as P = {pi; i = 1,..., n}, and n is the number of precision distribution schemes.

[0045] Finally, in step S33, a large-sample simulation test is performed, considering the random factors of the operation results of the attack link, and the Monte Carlo test method is used. Before the test is run, the number of sample repeated runs needs to be configured. Since each test sample is relatively independent, in some optional embodiments, in step S33, the plurality of precision distribution schemes are run in parallel to speed up the simulation test process.

[0046] During the simulation test running process, the test data of each sample are recorded, and the key includes the projectile hit efficiency.

[0047] It can be understood that different precision distribution schemes have different hit efficiencies in the same use scenario. The hit efficiency refers to the ability of the projectile to successfully move to the target position under specific conditions. The hit efficiency can usually be evaluated by statistically analyzing the comprehensive hit probability through multiple tests under different conditions. For example, in some optional embodiments, in step S33, the projectile hit efficiency is calculated by the following formula:

[0048] Epi=Kpi / Mpi;

[0049] Where Epi is the projectile hit efficiency of the pi-th precision distribution scheme, Kpi is the number of hit targets in the simulation test running result of the pi-th precision distribution scheme, and Mpi is the number of tests using the Monte Carlo test method for the pi-th precision distribution scheme.

[0050] The precision allocation scheme database is constructed in the above manner. In step S3, according to the two parameters of the use scenario and the hit effectiveness threshold, a suitable precision allocation scheme can be retrieved.

[0051] Step S4: For each guidance phase in the screened precision allocation scheme, a corresponding guidance platform is selected according to the precision attribute of the guidance information.

[0052] Step S4 is used to compare the retrieved precision allocation scheme with each guidance platform in the guidance element knowledge base of step S1 according to the guidance information of each guidance phase, or to retrieve from the guidance element knowledge base of step S1 to obtain a guidance platform that meets the requirements of transmission delay, transmission period, target error, etc., that is, the optional strike link constituent element of the guidance phase.

[0053] Finally, considering the design constraints and experience knowledge, the specific guidance platform of each guidance phase is determined from the optional strike link constituent elements, thereby completing the strike closed-loop precision design.

[0054] Based on large-sample simulation tests, the present application constructs a precision allocation scheme containing use scenarios, guidance phases, guidance information, and hit effectiveness, covers the parameter space as much as possible under a limited number of samples, reduces the computational load, and meets the rapid selection of various guidance platforms in the multi-element cooperative strike link application scenario.

[0055] The second aspect of the present application provides a hit effectiveness-based strike closed-loop precision allocation system corresponding to the above method, mainly comprising:

[0056] A guidance platform parameter acquisition module is configured to acquire a pre-constructed guidance element knowledge base containing the types of various guidance platforms and the precision attributes of the guidance information that can be provided by various guidance platforms.

[0057] A strike link parameter acquisition module is configured to determine a strike link use scenario facing a target object and acquire a specified hit effectiveness threshold.

[0058] A precision allocation scheme selection module is configured to select a precision allocation scheme corresponding to the use scenario and meeting the hit effectiveness threshold from a pre-set precision allocation scheme database, wherein each precision allocation scheme includes multiple guidance phases, and each guidance phase has multiple guidance information.

[0059] A guidance platform selection module is configured to select a corresponding guidance platform for each guidance phase in the screened precision allocation scheme according to the precision attribute of the guidance information.

[0060] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A strike closed-loop accuracy allocation method based on hit effectiveness, used to guide projectiles during their flight from departure from the aircraft to approach the target, characterized in that... The method includes: Step S1: Obtain a pre-built guidance element knowledge base, which includes the type of each guidance platform and the precision attribute of the guidance information that each guidance platform can provide; Step S2: Determine the target-oriented strike chain usage scenario and obtain the specified hit performance threshold; Step S3: Select a precision allocation scheme from the preset precision allocation scheme database that corresponds to the usage scenario and meets the hit performance threshold. Each precision allocation scheme includes multiple guidance stages, and each guidance stage has multiple guidance information. Step S4: For each guidance stage in the selected precision allocation scheme, select the corresponding guidance platform based on the precision attribute of the guidance information.

2. The strike closed-loop accuracy allocation method based on hit effectiveness as described in claim 1, characterized in that, In step S1, the accuracy attributes of the guidance information include transmission delay, transmission period, and target error.

3. The strike closed-loop accuracy allocation method based on hit effectiveness as described in claim 1, characterized in that, Step S3 further includes: Step S31: Configure the use scenario for the strike link. The use scenario configuration includes setting the target elements and setting the guideable projectile elements. Step S32: For each configured use case, construct a precision allocation scheme consisting of multiple guidance stages, wherein the process of projecting the guide projector to the target is divided into multiple guidance stages, and each guidance stage includes multiple guidance information. Step S33: Determine the projectile hit efficiency of each accuracy allocation scheme in each scenario through simulation experiments, and construct an accuracy allocation scheme database. The accuracy allocation scheme database includes multiple usage scenarios, each usage scenario contains multiple accuracy allocation schemes, and each accuracy allocation scheme contains multiple guidance information.

4. The strike closed-loop accuracy allocation method based on hit effectiveness as described in claim 3, characterized in that, In step S33, multiple precision allocation schemes are run in parallel to accelerate the simulation test process.

5. The strike closed-loop accuracy allocation method based on hit effectiveness as described in claim 3, characterized in that, In step S33, the projectile hit effectiveness is calculated using the following formula: E pi =K pi / M pi ; Among them, E pi For the projectile hit performance of the pi-th precision allocation scheme, K pi M represents the number of targets hit in the simulation test results of the pi-th accuracy allocation scheme. pi The number of trials using the Monte Carlo method for the pi-th precision allocation scheme.

6. A strike closed-loop precision allocation system based on hit effectiveness, used to guide projectiles during their flight from departure from the aircraft to approach the target, characterized in that... The system includes: The guidance platform parameter acquisition module is used to acquire a pre-built guidance element knowledge base, which includes the type of each guidance platform and the precision attribute of the guidance information that each guidance platform can provide. The strike link parameter acquisition module is used to determine the strike link usage scenario for the target object and to obtain the specified hit effectiveness threshold. The precision allocation scheme selection module is used to select a precision allocation scheme that corresponds to the usage scenario and meets the hit performance threshold from a preset precision allocation scheme database. Each precision allocation scheme includes multiple guidance stages, and each guidance stage has multiple guidance information. The platform selection module is used to select the corresponding platform for each guidance stage in the selected precision allocation scheme based on the precision attributes of the guidance information.

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