Research On Cooperation-Confrontation Optimal Control For Multiple Aircrafts Systems

With the unceasing development of modern warfare means and the constant demand of confrontation for air weapons,cooperation and confrontation between different flight vehicle systems are not only the operational concept but also the chief means of winning for both penetration and interception.Most existing studies on cooperative penetration and interception for multiple aircrafts only consider by either penetration or interception,besides ignoring the connection between top-level strategy and low-level control.In actual air combat,both sides needs to consider the connection and influence between different levels,as well as intelligent strategies and control methods of the opposite system.This paper mainly works on the cooperation and confrontation problem for multiple aircrafts,designs the optimal control algorithm for aircrafts confrontation.The main works consist of the following parts.Firstly,systematic analysis and research on the penetration-interception optimal control problem for two aircrafts have been proposed.This paper analyses existence and uniqueness of solution for the penetration-interception optimal control problem between two aircrafts,and proposes an improved optimization algorithm to sovle the problem based on original natural.Besides,extensive numerical simulations have been expremented,as well as analysis on simulation results of different confrontation conditions indicate the main effectiveness and parameters which influence the aircrafts confrontation result in terminal phase.Secondly,this paper provides no-escape zone concept.No-escape zone is the max zone that the interception aircraft can intercept the penetration aircraft in the condition that both aircrafts take intelligent opitmla control.Large amounts of numerical simulations about diffent confrontation conditions have done to build the data base.Neural net has been used to fit the no-escape zone data base to realize the real-time online function.Besides,this paper poves the importance of no-escape zone in both penetration and interception air mission.The numerical simulations show that both penetration and interception can obtain better effectiveness by using no-escape zone.Thirdly,this paper proposed the design cycle and module of cooperative penetration system for multiple penetration aircrafts.The main research includes situatinal awareness and trajectory optimization.Situatinal awareness module can calculate the global threat degree of interception side with unclear condition.Trajectory optimization module mainly consists of ballistic missile trajectory optimization and cruise missile trajectory optimization.Ballistic missiles usually will not change its trajectory after lauch,thus their trajectory optimization are off-line,while cruise missiles need to plan their penetration routes in real time,thus trajectory optimization are on-line.Numerical simulations for both ballistic missiles and cruise missiles show that multiple penetration aircrafts can penetrate through mimimum threat degree route by themselves,besides cruise missiles can choose multi-angle penetration or saturation penetration strategy intelligently.Lastly,strategy and control problem about multiple interception aircrafts have been researched.Multiple interception system has been proposed,which can distribute interception weapon according to the threat of incoming targets.In the situation of interception for incoming ballistic missiles,interception aircrafts take time cooperative strategy,each aircraft intercept the target at the same time,while in the situation of interception for imcoming cruise missile,and interception aircrafts cooperate with each other to force the target into one or more aircrafts' no-escape zone.Numerical simulations show that multiple interception aircrafts can cooperatively intercept the incoming target as mission required.Abrove all,this paper has researched on multiple aircrafts cooperation-confrontation strategy and control problem systematically.The problem is devided into strategy confrontation of upper system and control confrontation of lower system.The upper system is cooperation penetration/or interception system of multiple aircrafts,and the lower system is the control system of every single aircraft.The lower systems provide data support for the upper systems,as well as the upper systems provide guidance for the lower systems.The upper systems and lower systems work together to realize the gloabl cooperation and confrontation.