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Method for guiding input constraining differential game based on self-adaptive dynamic planning

A dynamic programming, input-constrained technique used in aircraft guidance

Inactive Publication Date: 2017-05-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an input limited differential game guidance method based on adaptive dynamic programming, aiming to solve the HJI equation solving problem and input saturation problem in the nonlinear differential game problem

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  • Method for guiding input constraining differential game based on self-adaptive dynamic planning
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  • Method for guiding input constraining differential game based on self-adaptive dynamic planning

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[0065] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0066] In order to make the purpose, technical solution and advantages of the present invention clearer, the design process of the present invention will be described in detail below in conjunction with the accompanying drawings. Wherein, the same or similar symbols represent the same or similar functions throughout.

[0067] figure 2 It is the guidance and control flowchart of the method of the present invention.

[0068] Step 1, establish the relative motion equation of the two-dimensional planar missile-target.

[0069] Such as figure 1 As shown, it is assumed that the motion of the missile and the target is particle motion, and its velocity is constant. Define M and T to denote the missile and the target respectively, V M and V T represent the velocity of the missile and the target, respectively; α and β represent the heading angles of t...

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Abstract

The invention discloses a method for guiding an input constraining differential game based on self-adaptive dynamic planning. According to the method, a solving problem of an HJI equation and an input saturation problem in a nonlinear differential game problem are solved; an input constraining solving problem of the nonlinear differential game is solved by virtue of a self-adaptive dynamic planning technique, and a neural network and a Lyapunov method are combined so as to obtain a guidance control volume; and an input constraining differential game guidance law can be online obtained in real time based on an evaluation network updating law, and the aspect angle velocity in a guided missile-target relative motion relation tends to 0, so that the successful interception is guaranteed.

Description

technical field [0001] The invention relates to the technical field of aircraft guidance, in particular to an input-limited differential countermeasure guidance method based on adaptive dynamic programming. Background technique [0002] The increasing diversification of modern and future combat environments makes the design of missile guidance law more and more prominent its irreplaceable role. With the rapid development of aerospace technology, various highly maneuverable, intelligent, and dexterous targets (such as tactical ballistic missiles, intelligent drones, and intelligent cruise missiles, etc.) are emerging. This brings serious challenges to the guidance and control technology of the interceptor. The traditional guidance law (proportional guidance) has been widely used in actual combat systems because of its simple structure and easy implementation. However, in the face of various new types of mobile intelligent targets, the guidance accuracy of traditional guidan...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 孙景亮刘春生单一魏阿龙
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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