From analyzing the side , lobe , the angular velocity of sight line of autoloading seeker , and the response delay of missile , the main reasons of airdefence missile end control invalidation are made sure 2 、从半主动导引头副瓣波束影响、导引头最大跟踪角速度限制以及导弹响应延迟特性三个方面，分析了造成防空导弹末端失控的主要原因。
