Design method of differential game guidance law with finite time convergence

A differential strategy, limited time technology, applied in the field of aircraft guidance, can solve problems such as affecting the guidance accuracy
CN112346474AActive Publication Date: 2021-02-09NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2021-02-09

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Abstract

The invention discloses a method for designing a differential game guidance law with finite time convergence. According to the method, finite time improvement is performed on the differential game guidance law which is stable within infinite time; a weight matrix is designed, so that the differential game guidance law realizes sight angular rate convergence within the finite time; the guidance lawkeeps the advantage of not needing residual time estimation; and finally, a maneuvering target is effectively intercepted, and a guidance effect is improved.
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Description

technical field

[0001] The invention relates to a design method of a differential countermeasure guidance law with finite time convergence, and belongs to the field of aircraft guidance. Background technique

[0002] The differential game guidance law is a guidance law designed based on the differential game method. The literature (Li Dengfeng. Differential Game and Its Application. National Defense Industry Press, 2000) defines the differential game, that is, the differential game refers to the need to use differential equations to describe the game A class of countermeasures for activities. Its purpose is to find out the differential game solution, that is, the saddle point solution. The saddle point solution is the optimal solution for both decision-making parties. If any party does not adopt the saddle point solution, the other party will benefit in the game process. The missile chasing and fleeing problem is a natural differential game problem, and the relevant guidan...

Claims

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