Distributed cooperative guidance law construction method based on communication time-varying delay

Abstract

The invention discloses a distributed cooperative guidance law construction method based on communication time-varying delay. According to the method, guidance models are divided into a sight line direction model and a sight line normal direction model, and guidance laws of the models are constructed respectively. In the sight direction, firstly, based on the improved multi-agent consistency theory, arrival time is selected as a state variable, under the condition that time-varying delay exists in communication between missiles, it is ensured that the arrival time of the missiles is consistentthrough the effect of a consistency protocol, and finally the purpose that the missiles attack the target at the same time is achieved. In the sight line normal direction, based on the sliding mode control theory, the sight line angle error and the sight line angular rate are selected as state variables, the sight line angle error and the sight line angular rate approach to 0 by constructing a sliding mode controller, and the missile attacks a target according to a preset angle. According to the method, the maximum delay constraint does not need to be considered, the parameters in the consistency convergence protocol can be dynamically changed according to the delay, and the multi-missile cooperative strike target under the communication time-varying delay is realized.

Description

technical field [0001] The invention belongs to the technical field of guidance, and in particular relates to a method for constructing a guidance law. Background technique [0002] With the increasing air defense and anti-missile technology, especially at the end of the missile attack, it is easy to be intercepted by the enemy's counter weapons, and various active / passive deception jamming devices make it difficult to identify the target. The traditional single-missile combat style is difficult to achieve precise and stable strikes on targets. When adopting the combat method of coordinated attack by multiple missiles, multiple missiles attack the target from different angles at the same time, which greatly increases the difficulty of interception and interference of the enemy's anti-missile system. Therefore, in recent years, multi-missile cooperative guidance has attracted more and more attention from domestic and foreign scholars and industrial circles. [0003] Accordi...

AI Technical Summary

Problems solved by technology

The advantage of this method is that the convergence speed of the cooperative command is fast; the disadvantage is that once the central node fails, the combat mission of the entire projectile group will fail

Research on the design of distributed cooperative guidance law under the condition of communication time-varying delay, there are no relevant reports so far

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