Cooperative Midcourse And Terminal Guidance Law Of Multi-interceptor For Exo-atmospheric Interception

Exo-atmospheric interception is an important part of missile defense system, Multi-interceptor intercepting the target is an important method of interception. This paper put forward cooperative intercepting of middle guidance law and terminal guidance law for Multi-interceptor engagement.We design a midcourse guidance of two interceptors intercepting Exo-atmospheric Ballistic Missile cooperatively based on zero-effort-miss.The guidance law based on zero-effort-miss guidance midcourse guidance, taking the expecting intercepting point of two interceptors as coordination variable, adjust the expecting intercepting point of two interceptors as one point under the circumstance that the ZEM of two interceptors meet the requirement of terminal guidance. Later we analyze the initial state of two interceptors that could intercept the target collaboratively, and get the maximum difference of initial position of two interceptors.We put forward cooperative guidance law based on two interceptors intercepting cooperatively guidance law. First we analyze condition for multi-interceptor intercepting cooperatively, taking the expecting intercepting point of multi-interceptors as coordination variable and design the midcourse cooperative guidance law of multi-interceptor. Later we discuss the target distribution problem in multi-interceptor intercepting multi-target, and put forward a method for target distribution.In the light of the possible maneuverability of the Ballistic Missile, we propose a terminal guidance that two interceptors with two intercepting strategies, counter-parallel intercepting and lateral intercepting, perform cooperatively to intercept the same target. Frist we analyze possible maneuvering of Ballistic Missile and corresponding intercepting strategies. Then we analyze the condition of cooperative intercepting, later we choose the intending collision area of two interceptors as the collaborative variable and design collaborative controlling process.