Multi-missile time cooperative missile guidance method and system

Abstract

The invention discloses a multi-missile time cooperative missile guidance method and system. The method comprises the following steps that (1) a guidance kinematics model of each missile in a missile group is established; (2) for the established guidance kinematics model of each missile, CPN guidance laws for a stationary target and a maneuvering target are given respectively, and missile guidance based on the CPN guidance laws is completed; wherein when the CPN guidance laws are determined, the missile group consistency expected remaining flight time is calculated based on a weighted average consistency method; and based on a multi-agent depth deterministic strategy gradient algorithm, the missiles learn and decide CPN guidance law correlation coefficients. According to the method, the multi-agent DRL is applied on the basis of the existing time cooperative guidance law CPN to endow the missile group with the intelligent sensing and decision-making ability, the guidance precision can be improved, the cooperative time error can be reduced, and effective attacks can be achieved for static and maneuvering targets respectively.

Description

technical field [0001] The invention belongs to the technical field of missile guidance, in particular to a missile guidance method and system with multi-bomb time coordination. Background technique [0002] In the past few decades, the classical proportional navigation guidance (PNG) has been widely used and studied in engineering because of its simple implementation and good guidance effect. With the development of missile defense systems, especially defense penetration systems, many new modes of missile-guided operations have emerged; for example, multi-missile salvo attacks can effectively increase the survival probability of a single offensive missile, thereby completing predetermined combat tasks. Multi-missile salvo attack refers to multiple missiles attacking the same target at the same time. Compared with single missile combat, the damage efficiency of the target can be greatly improved. [0003] The main method to achieve multi-missile salvo attack is to control t...

AI Technical Summary

Problems solved by technology

[0007] (1) Most of the existing time-coordinated guidance laws are the product of the combination of PNG and advanced control theory, which are not considered from the perspective of intelligent perception and decision-making, and most of them are aimed at stationary targets;

[0008] (2) In the field of missile guidance, DRL is currently mostly used in the improvement of the guidance accuracy of a single missile and the offensive and defensive confrontation between interceptor missiles and penetration missiles. It has not been applied to multi-missile time coordinated guidance

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