Research On State Tracking And Penetration Technology Of Multi Missile Cooperation For EKV

As the most lethal and deterrent weapon at present,ballistic missile not only has a profound impact on the current world political pattern,but also can change the battlefield form in modern war,and even directly determine the success or failure of war.However,with the continuous improvement of missile defense systems in various countries,it is more and more diffi cult for a single missile to achieve successful penetration of enemy missile defense systems,so the cooperative operation between multiple missiles has become increasingly important.Taking EKV as the imaginary object,this paper studies the flight state tracking and penetration of EKV in the scene of multi missile cooperative operation.In order to achieve effective penetration of EKV,it is necessary to accurately know the attack intention and movement state of EKV launched by the enemy.Taking the position,velocity,acceleration and guidance coefficient n of the enemy’s EKV as the state variables,a three-dimensional proportional guidance model is constructed,which can more accurately describe the terminal motion characteristics of the enemy’s EKV.Because this paper is a multi missile cooperative operat ion,different three-dimensional proportional guidance models are established with different own missiles as the enemy’s EKV targets,Then the attack intention and flight state of the enemy EKV are estimated.When the enemy EKV is detected,EKV may not enter the terminal guidance,so free sliding motion model and current statistical model are added to describe the movement of the enemy EKV.In order to avoid excessive computation and performance degradation caused by too many model sets,the "imm1 + model set test" scheme is adopted in the middle of EKV flight,in which imm1 model set includes free taxiing motion model and current statistical model.At the same time,the model set test algorithm is used to judge whether the model set is accurate and provide the basis for switching model sets.Based on the above scheme,the attack intention and motion state of the enemy EKV are estimated,which can provide important reference information for the own missile penetration.Finally,the simulation results show tha t the tracking accuracy of the EKV tracking scheme based on IMM and divided the flight state into two segments is better than that of the single model algorithm.After obtaining the information of the enemy’s EKV attack intention and flight status,the advantages and disadvantages of several common maneuver modes are compared and analyzed.For the sake of simple implementation and low fue l consumption,the step maneuver method is finally adopted.Then the warhead maneuver time and duration are determined th rough theoretical analysis and simulation,The penetration of the enemy EKV based on the attack missile maneuver is completed;For the interception strategy of the escort missile,the team configuration of the attack missile and the escort missile is analy zed and simulated.On the issue of the guidance information extraction of the escort missile,the method of the line of sight angular rate extraction by multi missile cooperation is adopted.Compared with the single missile line of sight angular rate extra ction method,the line of sight angular rate extraction and the corresponding interception results of the enemy EKV are simulated and analyzed,It is verified that the multi missile cooperative extraction of line of sight angular rate is superior in interc epting enemy EKV.