一、前言近十多年来,视距内空空导弹正向着扩大发射角度、高机动性方向发展。尤其是后置离轴发射,可弥补战斗机性能不足并易于格斗占位。因此,后置发射已成为重要研究课题。无论采用那种发展方式,一个必要的发射条件是导弹必须锁定目标。早期AIM-9导弹采用定轴发射,即导弹视线锁在导弹(载机)纵轴上。 I. Introduction In the recent ten years or more, the air-to-air missiles in the line of sight are moving toward expanding the launch angle and developing high-mobility. Especially after the off-axis launch, can make up for lack of performance fighter and easy to fight place. Therefore, post-launch has become an important research topic. Regardless of the type of development adopted, a necessary launch condition is that missiles must target. Early AIM-9 missile launched using a fixed axis, that is, missile sight lock on the missile (carrier) on the longitudinal axis.