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Multi-aircraft collaborative defense penetration trajectory optimization design method

A technology of trajectory optimization and design method, which is applied in aerospace vehicles and aviation fields, can solve the problem of easy generation of large errors in flight trajectories, and achieve the effect of small error of multi-aircraft collaborative trajectory.

Active Publication Date: 2020-06-12
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the design of the terminal cooperative guidance law is that it is easy to produce large errors in the flight trajectory under the conditions of long distance, wide airspace and wide speed domain.

Method used

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  • Multi-aircraft collaborative defense penetration trajectory optimization design method
  • Multi-aircraft collaborative defense penetration trajectory optimization design method
  • Multi-aircraft collaborative defense penetration trajectory optimization design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] This embodiment adopts the multi-aircraft collaborative penetration trajectory optimization design method provided by the present invention for test verification.

[0109] In order to fully verify the effectiveness and applicability of the multi-aircraft collaborative penetration trajectory optimization design method provided by the present invention, the following combat scenarios are assumed: at the beginning, three aircrafts A, B, and C perform coordinated attacks on the same target from different launch points , Its performance parameters are consistent, and it is required to initiate terminal-guided strike operations on the target from different directions in the mid-terminal guidance transfer area at the same time. During the flight, they were all threatened by a detection radar deployed by the enemy. The deployment position of the radar was (35°E, 2°N). Terminal guidance area parameter R ter =50km, height h ter = 30km. The simulation parameter settings of three...

Embodiment 2

[0116] This embodiment adopts the single-aircraft collaborative penetration trajectory optimization design method provided by the present invention for test verification.

[0117] In order to fully verify the effectiveness and applicability of the single-aircraft collaborative penetration trajectory optimization design method provided by the present invention, the following combat scenario is assumed: at the beginning, the C aircraft strikes the target from the launch point. During the flight, it was threatened by a detection radar deployed by the enemy. The deployment position of the radar was (35°E, 0°N). Terminal guidance area parameter R ter =50km, height h ter = 30km. C aircraft combat mission simulation parameter settings are shown in Table 1.

[0118] Analyze the penetration trajectory of the C aircraft, and design the following two calculation examples:

[0119] (1) In order to effectively strike a time-sensitive target, use the shortest time as the objective function t...

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Abstract

The invention discloses a multi-aircraft collaborative defense penetration trajectory optimization design method, which comprises the steps of obtaining a single-aircraft three-degree-of-freedom kinetic model, and establishing a multi-aircraft three-degree-of-freedom kinetic model; acquiring RCS data of the single aircraft for the radar, and calculating a radar detection threat value of each single aircraft according to the distance between the single aircraft and the radar and the RCS data; obtaining radar detection threat values of multiple aircrafts according to the radar detection threat value of the single aircraft; and obtaining constraint conditions, and optimizing the multi-flight cooperative defense penetration trajectory according to the multi-aircraft three-degree-of-freedom kinetic model, the radar detection threat values of the multiple aircrafts and the constraint conditions. The method provided by the invention not only considers the influence of the distance factor between the aircraft and the radar, but also considers the relationship between the RCS and the attitude of the aircraft; meanwhile, the method does not need to carry out small-angle assumption and linearization processing on the equation, and the multi-aircraft cooperative trajectory error under the conditions of long distance, wide airspace and wide speed domain is small.

Description

Technical field [0001] The invention relates to the technical field of aviation and aerospace vehicles, in particular to an optimization design method for multi-aircraft collaborative penetration trajectory. Background technique [0002] The continuous strengthening of modern defense systems makes it more and more difficult for traditional single aircraft to penetrate defenses. During the penetration of aircraft, radar is the main threat. Therefore, stealth performance plays an important role. On the one hand, improving stealth technology can reduce its own characteristic signals through certain technical means; on the other hand, when the target characteristic signals cannot be directly changed, trajectory planning can be used to reduce the probability of radar detection. At the same time, because multi-aircraft cooperative operations can effectively improve the intelligence level of aircraft and the overall combat effectiveness of formations, multi-aircraft cooperative operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/28G06F30/15
Inventor 葛健全许强强郭玥江增容张青斌丰志伟杨涛姜沾源
Owner NAT UNIV OF DEFENSE TECH