Input-Output Finite-time guidance laws in triangle interception scenario

Considering on an aircraft threatened by an interceptor, one of the effective penetration strategies is to release a defender from the aircraft to confront the interceptor. In this case, the aircraft, the defender and the interceptor constitute the three-body guidance relationship, and the cooperation of the aircraft and its defender to achieve the best tactical effects turns into the concerned problem. This paper studies the triangle interception guidance problem via the finite-time theory. The paper presents linear system Input-Output Finite-time Stabilization (IO-FTS) method. A state feedback controller is designed, via Linear Matrix Inequalities (LMIs), to guarantee the system IO-FTS. The proposed methods are applied to the guidance design of triangle interception guidance problem. The simulation result illustrates the effectiveness of the proposed method.