Formation cooperation-oriented air-to-air missile attack area calculation method

Abstract

The invention discloses a formation cooperation-oriented air-to-air missile attack area calculation method, and belongs to the technical field of trajectory simulation. The method comprises the following steps: firstly, inputting tasks borne by all aircrafts in a formation and attack area types, then initializing a situation, setting a horizontal orientation for a target, and calculating attack boundary distances of all the aircrafts in the formation which bear missile launching tasks on the target under a cooperative condition by adopting a dichotomy method; after attack boundary distances of all target horizontal orientations are calculated, formation cooperative attack boundaries are comprehensively obtained, and a complete formation cooperative attack area is constructed according to the attack boundaries. The method fully considers the task and capability of each airplane, aims to provide an attack area calculation mode facing formation cooperation, and is more suitable for missile performance evaluation and missile launching decision in a formation cooperation combat mode.

Description

Technical Field

[0001] The present invention belongs to the technical field of ballistic simulation, and more specifically relates to a method for calculating the engagement zone of an air-to-air missile for formation cooperation. Background Art

[0002] Influenced by the concepts of unmanned, clustered, and intelligent warfare, along with the development of airborne weaponry, the form and appearance of future air combat are undergoing significant changes. Man / machine cooperative combat, formation cooperative combat, and AI-assisted decision-making are subverting existing combat styles. Among them, formation cooperative combat, due to the sharing of information resources among formations, can achieve effects that traditional single-aircraft confrontation does not have, and emerging tactical methods such as cooperative detection, relay guidance, and stealthy attack have emerged and begun to receive widespread attention.

[0003] The engagement zone is the effective boundary within which an air-to-air missile can hit a target under given conditions for a determined carrier aircraft posture and target posture. The engagement zone is an important reference index for measuring missile performance and an important basis for missile launch decisions. Although the concept and calculation of the engagement zone have been relatively fixed, with the development of air-to-air missile capabilities and the continuous emergence of tactical methods, the traditional engagement zone focused on single-aircraft confrontation can no longer meet the actual combat requirements.

[0004] Aiming at the formation cooperative combat style, considering the medium- and long-range air-to-air missile under the composite guidance mode of "program-controlled initial guidance + command correction mid-course guidance + radar active homing terminal guidance", the present invention proposes a method for calculating the engagement zone of an air-to-air missile for formation cooperation, aiming to take formation cooperative factors into account in the calculation process of the engagement zone, so that the calculation of the engagement zone no longer focuses solely on single-aircraft confrontation, but is more in line with the future formation cooperative combat style. Summary of the Invention

[0005] The present invention discloses a method for calculating the engagement zone of an air-to-air missile for formation cooperation. Aiming at the problem that the traditional engagement zone cannot reflect the influence of formation cooperation on the missile engagement zone, the present invention takes into account the influence brought by formation cooperative factors in the calculation process of the traditional engagement zone, including the different tasks undertaken by formation aircraft, and the relative relationships among our formation, the missile, and the target during the ballistic simulation process. Finally, the formation cooperative engagement zone is obtained by comprehensively considering the engagement zones of all formation aircraft undertaking the task of launching missiles against the target under cooperative conditions, which can make up for the one-sidedness of the traditional engagement zone only targeting single-aircraft confrontation to a certain extent and make it more in line with the formation cooperative combat style.

[0006] To achieve the above object, the present invention is implemented by the following technical solutions: The method includes: Input the tasks undertaken by all aircraft in the formation and the type of engagement zone. Initialize the posture. Set the target horizontal orientation Use the bisection method to calculate the attack boundary distance of all formation aircraft undertaking the task of launching missiles against the target under collaborative conditions wherein , is the number of formation aircraft undertaking the task of launching missiles Taking all as the input, calculate the formation collaborative attack boundary with the target horizontal orientation of ; the described is the maximum attack boundary distance or the minimum attack boundary distance. If is the maximum attack boundary distance, take the maximum max, then the formation collaborative attack boundary is the maximum value of all ; If , then return the attack boundary distance of all formation aircraft undertaking the task of launching missiles against the target under collaborative conditions calculated by the bisection method Otherwise, the calculation of the formation collaborative attack area is completed, and the formation collaborative attack boundaries under all together constitute the formation collaborative attack area

[0007] In one solution, the described tasks include launching missiles, detecting targets, and guiding missiles

[0008] In one solution, the establishment of the ballistic simulation process in the attack boundary of the target includes The different constraints satisfied by formation aircraft undertaking different tasks. The formation aircraft undertaking the task of launching missiles and the target satisfy the missile launch constraint, the formation aircraft undertaking the task of detecting the target and the target satisfy the radar detection constraint, and the formation aircraft undertaking the task of guiding the missile and the missile satisfy the guidance constraint

[0009] In one solution, the described formation collaborative attack boundary calculation function The function can take: min function, max function, that is, obtain the minimum value and the maximum value of all attack boundary distances as the formation collaborative attack boundary

[0010] Advantages of the present invention The attack area calculation method proposed by the present invention is more applicable to the formation collaborative combat mode, specifically reflected in two points: 1. In the ballistic simulation, formation aircraft undertaking different tasks need to satisfy corresponding constraints, and the simulation can reflect that the formation aircraft make the missile hit the target through collaboration; 2. The present invention comprehensively obtains the final attack area for the collaborative attack area of all formation aircraft capable of launching missiles Description of the drawings

[0011] ​Figure 1 For the calculation process of the formation cooperative attack area; Figure 2 For the ballistic simulation process; Figure 3 For the example situation; Figure 4 For the calculation result of the formation cooperative attack area under the example situation. Specific implementation manners

[0012] For facilitating the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in the present invention. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0013] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For facilitating the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in the present invention. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0014] Figure 1 It is the calculation flow chart of the formation cooperative attack area provided by the embodiment of the present invention. The embodiment of the present invention provides a method for calculating the attack area of an air-to-air missile for formation cooperation, and the method includes the following steps: Step S1: Input the tasks borne by all the aircraft in the formation and input the type of attack area to be calculated; During the formation cooperative combat process, it is considered that after the medium and long-range air-to-air missile is launched, it needs to go through three stages: program control guidance initial guidance, command correction mid-course guidance, and radar active homing terminal guidance to hit the target. The missile does not require the intervention of the formation aircraft during the initial guidance and terminal guidance stages, while during the mid-course guidance stage, the formation aircraft need to provide target information for it to conduct guidance, which requires the formation aircraft to detect the target and transmit the target information to the guidance aircraft through the inter-aircraft data link, and then the guidance aircraft transmits the target information to the missile through the guidance radar. According to the formation cooperative combat process, the tasks borne by the formation aircraft are divided into launching the missile, detecting the target, and guiding the missile.

[0015] During the calculation of the attack area, formation aircraft undertaking different tasks need to meet different constraints, and different tasks also determine different movement patterns of the formation aircraft. The formation aircraft undertaking the task of launching missiles needs to launch missiles at the target. After the missile launch is completed, the carrier aircraft can then undertake the task of detecting the target or guiding the missile; the formation aircraft undertaking the task of detecting the target needs to meet the target detection constraints, and the maneuvering pattern is planned to be a uniform speed pursuit of the target. The target detection constraints are that the target is within the illumination radius of the local detection radar and the local aircraft is within the communication radius of the guidance aircraft; the formation aircraft undertaking the task of guiding the missile needs to meet the missile guidance constraints, and the maneuvering pattern is planned to be a uniform speed pursuit of the missile. The missile guidance constraints are that the missile is within the illumination radius of the local guidance radar and the local aircraft is within the communication radius of the missile's tail antenna.

[0016] The selection of the attack area type will determine the movement pattern of the target during the calculation of the attack area. The attack area type can include the maximum attack area, the minimum attack area, the non-escape attack area, etc. Among them, the movement patterns of the maximum / minimum attack area targets are both uniform linear motion.

[0017] Attack boundary distance: This refers to the definition of the normal single-aircraft attack distance, which can include the maximum / minimum / non-escape / typical attack boundary distances, etc. The difference here is that the formation cooperation is considered during the process of calculating the distance using the dichotomy method.

[0018] Cooperative attack boundary distance: Each missile-launching aircraft can calculate an attack boundary distance. Then, how to calculate the overall cooperative attack boundary distance of the formation? This patent expresses this comprehensive process as a function f. f can be the maximum / minimum value of all attack boundary distances as the cooperative attack boundary distance, or it can be other functions.

[0019] Attack area: One type of attack area (used in this patent) is the area composed of the attack boundary distances calculated by traversing all the horizontal orientations of the enemy.

[0020] It is assumed that the formation includes three aircraft. Formation aircraft 1 and formation aircraft 3 undertake the tasks of launching missiles and guiding missiles, and formation aircraft 2 undertakes the task of detecting the target.

[0021] In this embodiment, the maximum and minimum attack areas are calculated simultaneously. At this time, the movement patterns of the targets are both uniform linear motion.

[0022] Step S2: Initialize the situation, ; The assumed example situation is shown in Figure 3, the formation aircraft form an equilateral triangle formation, with a distance of 50 km between each other, a speed of 1.2 Mach, a height of 8 km, and a horizontal orientation of 0°. The target also forms an equilateral triangle with formation aircraft 1 and formation aircraft 3. The target speed is 0.8 Mach, the height is 8 km, and the horizontal orientation is 0°.

[0023] Step S3: Set the target horizontal orientation to , and use the bisection method to calculate the attack boundary distance of all formation aircraft responsible for launching missiles against the target under collaborative conditions , where , is the number of formation aircraft responsible for launching missiles; The formation collaborative attack area is an attack area centered on the target. The attack area centered on the target needs to calculate the formation collaborative attack boundaries under all target horizontal orientations to form an attack area. The attack boundary under each horizontal orientation is calculated using the bisection method. The bisection method is a commonly used method for calculating the attack area, which has the advantages of fast calculation speed and reliable method, and will not be elaborated here.

[0024] In order to reflect the influence of formation collaboration on the air-to-air missile attack area and distinguish it from the traditional attack area focusing on single-aircraft confrontation, the present invention simulates the missile trajectory under collaborative conditions, that is, the relative relationships among our formation, the missile, and the target are considered in the trajectory simulation, especially the constraint relationships that need to be satisfied among our formation, the missile, and the target in order to hit the target. The missile is no longer only modeled as a "fire and forget" situation, but the entire combat chain is modeled. The trajectory simulation process is shown in Figure 3 .

[0025] The trajectory simulation starts. First, it is judged whether the missile launch conditions are met. If not, it directly returns "not hit" and the solution ends. Otherwise, the missile is launched. After the missile is launched, when the three conditions that the target can be detected by the formation detector, communication can be carried out between the detector and the guidance machine, and the guidance machine can guide the missile are met simultaneously, the formation can obtain the real information of the target. Otherwise, the formation can only obtain the extrapolated information of the target. Then, the formation guides the missile according to the obtained target information, the formation aircraft maneuvers according to the tasks undertaken, and the target maneuvers according to the calculated attack area type. The trajectory simulation process will loop through the above three processes of obtaining target information, guiding the missile, and maneuvering all aircraft until the missile-to-target distance is less than the missile explosion radius, that is, the missile hits the target and ends, or the missile failure conditions are met and the loop exits and returns "not hitting the target" and ends. The missile failure conditions include reaching the maximum operating time of the missile and the missile speed being less than the minimum allowable speed.

[0026] This embodiment calculates both the maximum and minimum attack boundary distances. The calculation steps for both are as follows: Step S301: Store all the formation aircrafts responsible for missile launching into a queue , ; Step S302: Take out the th formation aircraft from the queue, and set the initial boundary values of the bisection method ; and ; For the calculation of the maximum attack boundary distance, is set as the hit distance obtained by rough search, is set as the maximum distance that the missile can fly; for the calculation of the minimum attack boundary distance, is set as 0, is set as the hit distance obtained by rough search.

[0027] Step S303: Set the search distance as , update the target position, enter the ballistic simulation process under collaborative conditions until exiting when reaching the ballistic hit / failure condition, and update the bisection boundary values and ; For the calculation of the maximum attack boundary distance, if the missile hits at , then update to , otherwise, update to ; for the calculation of the minimum attack boundary distance, if the missile hits at , then update to , otherwise, update to .

[0028] Step S304: If , then return to Step S303, otherwise obtain the attack boundary distance of the th formation aircraft against the target; For the calculation of the maximum attack boundary distance, ; for the calculation of the minimum attack boundary distance, .

[0029] Step S305: , if , then return to Step S302, otherwise exit Step S3.

[0030] Step S4: Synthesize , calculate the formation collaborative attack boundary with the target horizontal orientation of ; Since there may be multiple aircraft in the formation that can launch missiles, in order to reflect the overall attack area of the formation, at each target horizontal orientation below, the present invention will synthesize all to obtain the formation cooperative attack boundary. The functional relationship is a user-defined function. A feasible way is: if calculating the far boundary of the attack area, then , if calculating the near boundary of the attack area, then .

[0031] In this embodiment, for calculating the maximum attack area, , for calculating the minimum attack area, .

[0032] Step S5: , if , then return to Step S3, otherwise the calculation of the formation cooperative attack area is completed, and all under the formation cooperative attack boundaries together form the formation cooperative attack area.

[0033] Taking as the polar coordinate angle, and taking the formation cooperative attack boundary and as the polar coordinate radii, the calculation result of the formation cooperative attack area in the example situation can be plotted as shown in Figure 4 .

[0034] Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program. The described program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above various methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0035] It should be understood that the above detailed description of the technical solutions of the present invention with the aid of the preferred embodiments is illustrative rather than restrictive. Those of ordinary skill in the art can modify the technical solutions recorded in each embodiment on the basis of reading the specification of the present invention, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present invention.

Claims

1. A method for calculating the attack zone of an air-to-air missile for formation coordination, characterized in that: The method includes: Enter the missions to be undertaken by all aircraft in the formation and the attack zone type; Initialize the situation; Set the target horizontal heading , the binary method is used to calculate the attack boundary distance of all formation aircraft responsible for launching missiles to the target under cooperative conditions ,in , The number of aircraft in the formation responsible for launching missiles; With all As input, the target horizontal direction is calculated as The formation coordinated the attack border ; is the maximum attack boundary distance or the minimum attack boundary distance, if is the maximum attack boundary distance. Taking the maximum max, the formation coordinated attack boundary is all The maximum value of ,like , then the attack boundary distance of all the formation aircraft responsible for launching missiles to the target under the coordinated condition is calculated by using the dichotomy method; Otherwise, the formation coordinated attack zone is calculated, and all The formation coordinated attack boundaries below together constitute the formation coordinated attack area.

2. A formation-coordinated air-to-air missile attack zone calculation method according to claim 1, characterized in that: The tasks described include launching missiles, detecting targets and guiding missiles.

3. The air-to-air missile attack zone calculation method for formation coordination according to claim 1, characterized in that: The trajectory simulation process in the attack boundary of the target is established, including: The formation aircraft that undertake different tasks meet different constraints. The formation aircraft that undertakes the missile launching task meets the missile launching constraint with the target, the formation aircraft that undertakes the target detecting task meets the radar detection constraint with the target, and the formation aircraft that undertakes the guided missile task meets the guidance constraint with the missile.

4. The air-to-air missile attack zone calculation method for formation coordination according to claim 1, characterized in that: The formation coordinated attack boundary is all Function , Functions can be customized by users according to their needs, including min function and max function, that is, to obtain the minimum and maximum values ​​of all attack boundary distances as the formation coordinated attack boundary.

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