A Distributed Cooperative Guidance Law Construction Method Based on Communication Time-varying Delay

Abstract

The invention discloses a method for constructing a distributed cooperative guidance law based on communication time-varying delay. In the method, the guidance model is divided into two types of models, the line-of-sight direction model and the line-of-sight normal direction model, respectively to construct the guidance law. In the line of sight direction, based on the improved consensus theory of multi-agents, the arrival time is selected as the state variable. In the case of time-varying delay in the communication between missiles, the consensus protocol is used to ensure that the arrival times of multiple missiles are consistent. Finally, Realize that multiple missiles attack the target at the same time. Based on the sliding mode control theory in the line of sight normal direction, the line-of-sight angle error and the line-of-sight angular velocity are selected as state variables, and the sliding mode controller is constructed to make the line-of-sight error and the line-of-sight angular velocity close to 0, so that the missile attacks the target according to the predetermined angle. This method does not need to consider the maximum delay constraint, and the parameters in the consensus convergence protocol can be dynamically changed according to the delay, so as to realize the coordinated attack of multiple missiles on the target under the communication time-varying delay.

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 enhancement of air defense and anti-missile technology, especially at the end of the missile attack, it is easy to be intercepted by the enemy's countermeasure weapons, and various active / passive deception and jamming equipment cause difficulties in identifying the target. The traditional single-missile combat style is difficult to achieve precise and stable strikes on the target. When the combat mode of coordinated attack of multiple missiles is adopted, 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 received more and more attention from scholars and industries at home and a...

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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