In modern warfare, with growing aerial threat, tactical ballistic missiles (Tactical Ballistic Missile, TBM) have become an important weapon in one of the modern battlefield because of its long range, speed and maneuvering ability, etc. World military power as well as some of our neighboring countries, all have accelerated the TBM technology development, which to our homeland security surrounding a serious threat. Therefore, we must accelerate the technological development of our anti-aircraft weapons, anti-aircraft weapons in space to improve our defense capabilities. In this paper, TBM intercept as the background for the interceptor missile homing problem studied, the main contents include the following aspects: (1) Establish a mathematical model of interceptor missile. Defines commonly used in modeling studies interceptor missile coordinate system, and the corresponding coordinates relations between the coordinate transformation; based on this mathematical model is given interceptors, including the interceptors centroid kinematics model and dynamic model , autopilot equivalent model and target different motorized sports model; finally deduced interceptor missile and target relative motion model for the analysis and design of the guidance system laid the foundation; (2) Study the interceptor missile terminal guidance. Analysis of the classical proportional navigation overload characteristics and ballistic characteristics, and gives conducive to omnidirectional attack Generalized Proportional Navigation; based interceptor missile and target relative kinematics model, using variable structure control theory and optimal theoretical derivation of suitable blocking high-speed, large maneuvering target SMVSC guidance law, and proved that the guidance law system parameter perturbation and external interference robustness; final trajectory for different target maneuver using sliding mode variable structure proportional navigation guidance law and carried out trajectory simulation, comparative analysis of the performance of both validated sliding Mode Variable Structure Guidance Law superiority. (3) Under the conditions of passive tracking, study guidance information filtering method. Based on adaptive filtering and strong tracking filter method to study the interception late in the angle measurement information only in case of passive tracking problem, derive suitable interception late adaptive Kalman filtering method and simulation analysis of its effectiveness.
Keywords：TBM, interceptor, the model variable structure control, adaptive filtering
