Research On Cooperative Guidance For Multi-missile Based On Consensus Protocols

In recent years,with the development of science and technol ogy,the antimissile technology is becoming more and more mature.The operation effectiveness of the single missile is no longer obvious.The multi-missile cooperative operation,as a new type of missile operation,has been paid more and more attention and developed rapidly.Compared with the single missile operation,multi-missile cooperative operation has many advantages,such as high penetration ability,high reliability and high operational efficiency.So it is of great application value in military affairs.In order to cope with the complex combat environment in the future battlefield,it is very necessary to study the cooperative control of multiple missiles.This dissertation studies the problem of multiple missiles hitting the same target simultaneously,and the main content is given as follows:Firstly,two different coordinate systems are selected,and the relative motion equations between the missiles and target are established.However,the study is relatively difficult because of the nonlinear equations.The double integral dynamic system model is a linear equation,and the research is relatively mature.Inspired by this,the nonlinear mathematical model of the missiles can be reduced to a double integral dynamic system model by feedback linearization in this dissertation.In this way,some research results and relevant knowledge of double integral dynamic system model can be used to solve the problem of multiple missiles attacking the target.Then,in the process of multi-missile attacking the target,each missile is regarded as an agent.And the problem of hitting the target at the same time can be translated into a convergence problem of multiple agents,so multiple missiles cooperative attacking the target can be seen as an application area of distributed control of multi-agent systems in this paper.Based on the simplified mathematical model of the missiles,this paper designs the corresponding cooperative guidance law respectively under the general control protocol and bounded input control protocol,and proves the effectiveness of the cooperative guidance laws.Considering that the cooperative guidance law will appear singular when the missile approaching the target,in this dissertation,the cooperative guidance law is adopted when the missile is far away from the target,and the control law is switched to the proportional guidance law when at a certain distance to avoid the above problem.Finally,this paper gives some cases and make the MATLAB simulation by using the cooperative guidance laws designed above.The effectiveness and feasibility of the multi-missile cooperative guidance laws are further analyzed.The cooperative guidance law is designed in this paper can make the missiles reach an agreement on the attack time,compared with more missiles adopt proportional guidance law,which can meet the requirements of hitting the target at the same time by multiple missiles,so as to achieve the maximum operational effectiveness.