Research On Task Assignment And Cooperative Guidance Of Multi-plactform Air Defense Missile

With the continuous development of missile weapon technology,the single air defense interception platform has been unable to complete the effective killing of the target for the interception of the offensive missile.The traditional single-to-single combat mode system has low efficiency and poor combat performance,which cannot meet the requirements of modern operations.Therefore,it is necessary to carry out research on key technologies of multi-platform coordinated air defense.This paper takes multi-platform air defense missile as the object,carries out research on task assignment and cooperative guidance,constructs task allocation optimization index based on intercept probability and target threat degree,solves task assignment problem based on improved genetic algorithm.The cooperative strategy is studied based on two on one case,considering the angle constraint,using the optimal strategy to solve the established relative motion vector equation,verify the applicability of the guidance law to the interception of the maneuvering target.Firstly,investigates the research and development status of task assignment and collaborative guidance at home and abroad,analyzes the characteristics of each research method and the constraints of collaborative guidance,summarizes the characteristics of task allocation methods and collaborative guidance methods,and the background and meaning of the multi-platform collaborative air defense.Secondly,it studies the multi-platform collaborative air defense task assignment and guidance problem,and establishes the mathematical model of task assignment and the relative motion mathematical model.The target threat degree in the task assignment problem is modeled,and the mathematical model between the task assignment optimization index and the target threat degree is established.Based on the interceptor and target dynamic equations,the relative motion equations of the interceptor and the target are derived,the relative motion model between the two is established.Then,the research task allocation based on genetic algorithm,optimization index function is determined,based on grey correlation algorithm for data integration model of target threat degree in task assignment model.The kill probability model is proposed.Greedy optimal algorithm is used to improve the traditional genetic algorithm because of the low speed to solve the problem.To solve the problem of premature convergence caused by the greedy principle,the coevolution principle is improved to improve the global optimization ability of the algorithmFinally,the explicit cooperative guidance method is studied.The trajectory of each interceptor missile in the cooperative guidance is correlated,which can obtain better guidance performance.Aiming at the problem of coordinated interception of interceptor and target,the relative motion of interceptor and target is modeled,the relative intercept angle is taken as the cooperative index,and the guidance law with Angle constraint is designed.Through the analysis of the two on one situation,the effectiveness test of the guide law is simulated.