Abstract:

The very low altitude penetration greatly improves the survivability of aircraft in modern anti-air fire. It causes drastic change in modern air force tactics and thus deserves serious consideration. This paper deals with the technique of aircraft guidance in very low altitude penetration, especially the terrain following technique. It reviews the development of the terrain following technique from the early N method to the modern adaptive angle method, as well as the optimal control method under developing. It also introduces the recent progresses in this field, such as Terrain Storage, combined terrain following and terrain avoidance technique, etc.