A Midcourse Guidance Method of Long Range Air-to-Air Anti-Radiation Missile

A passive guidance method is used in midcourse guidance stage of long range air-to-air anti-radiation missile, which based on the passive location theory of moving single observer to moving radiant point. The special request of guidance law caused by passive guidance is studied, and a model of guidance law named “proportional guidance of swing object direction” is put forward. The model resolves the problem of midcourse guidance method for long range air-to-air anti-radiation missile, and the distance of “fire and forget” could be expanded to launch distance. The simulative trials and analysis of the result show that the guidance law could satisfy the observable condition of passive guidance, and the capability of trajectory is close to the one which produced by proportional guidance low.