Research On Missile Cooperative Guidance Method Under Multiple Constraints

Aiming at the limitation of unconstrained missile operation in the battlefield,the research scheme of missile cooperative guidance law under multi constraint conditions is proposed to complete the task of missile cooperative operation under the constraint of expected attack time and attack angle.The research on missile cooperative guidance method under attack time constraint,missile two-way cooperative guidance law under multi constraint and missile one-way cooperative guidance method under multi constraint are studied in turn.Based on optimal control theory,combined with prediction correction method and drop angle constraint theory,and complete appropriate guidance law optimization and simulation.The simulation results show the effectiveness and feasibility of the missile cooperative guidance method under multiple constraints.The research results have reference significance for enhancing the defense performance of the system,improving the attack accuracy and realizing the saturation attack in the actual battlefield.The main research contents of this paper are as follows:(1)The optimal cooperative guidance method for multiple missiles attacking the same target under attack time constraints is studied.By establishing the missile cooperative operation model,based on the dynamic programming idea in the optimal control theory,combined with the prediction correction method,the optimal cooperative guidance method with attack time constraints is studied.The simulation results are compared with the traditional enhanced proportional guidance law,and the advantages of the optimal cooperative guidance law with attack time constraints are analyzed.(2)The guidance law of target missile defense missile two-way cooperative operation under multiple constraints is studied.By establishing the relative motion models of attack bomb target bomb,target bomb defense bomb and defense bomb attack bomb,it is studied that the target bomb escapes at the expected time,and the defense bomb successfully intercepts the attack bomb at the desired angle under this time limit to achieve cooperative operations.Based on the optimal control theory and combined with the dynamic planning idea,an optimal cooperative guidance law with the constraints of attack time and attack angle is proposed.By comparing with the optimal trajectory shaping guidance law,the accuracy and applicability of the defensive missile in intercepting the attacking missile are verified.(3)The unidirectional cooperative guidance method for missiles with multiple constraints is studied.By analyzing the kinematic model of the missile in flight,the relative motion equations of the attack missile target missile,target missile defense missile and defense missile attack missile are obtained,and the unidirectional cooperative operation model of the target missile defense missile is established.By constraining the attack time and attack angle,the whole guidance process is simulated,and the feasibility of the unidirectional cooperative guidance law of the missile under multiple constraints is analyzed.