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本发明背景采用普通导引头的末端寻的主要问题是不能可靠地自动寻找目标的形心。所有雷达系统均有末端博奕性能不良的缺点,由于天线波束分辨力差,无法从目标反射信号中分辨出目标形心位置,并且对干扰又非常敏感。在晴朗的战术空中环境下,被动光学导引头通常比雷达导引头更为精确。然而,典型的被动导引头系统是跟踪目标排气的红外辐射,并把导弹导引到火舌上,或者至多不过是把导弹导引到炽热的尾喷管上。
Background of the Invention The main problem with the end-finding of conventional seeker heads is that the centroid of the target can not be found automatically and reliably. All radar systems have the disadvantage of poor performance at the end of the game. Due to the poor beam resolution of the antenna, the target centroid position can not be resolved from the target reflection signal and is very sensitive to interference. In a clear tactical air environment, passive optical seekers are generally more accurate than radar seekers. However, a typical passive seeker system tracks the target exhaust infrared radiation and directs the missile to the flames, or at best, directs the missile to the hot tail nozzle.