本发明关于导弹被动导引系统,导弹上至少有三个干涉仪,每个干涉仪均有两个配置在导弹头部的电磁天线。红外导引头是大家熟悉的,它们有很高的精度,能使导弹在弹道末端可靠地导至目标区,然而,其作用距离有限。此外,被动电磁导引头也是大家熟悉的,然而,其导引精度不够高,可是,其作用距离却很大。这种电磁导引头可在离瞄准目标很远距离上将导弹导至目标附近。在这些被动电磁导引头上,跟踪量或导引量通过两个互相垂直平面的干涉仪得到。如果 The present invention relates to a passive missile guidance system. There are at least three interferometers on the missile. Each interferometer has two electromagnetic antennas arranged at the head of the missile. Infrared see-saws are familiar, they have high precision, can make the missile at the end of the ball reliably to the target area, however, its role is limited. In addition, the passive electromagnetic seeker is also familiar, however, its guidance accuracy is not high enough, but its role range is very large. The electromagnetic seeker can guide the missile to a very close distance from the target. On these passive electromagnetic seekers, the amount of tracking or guidance is obtained by two interferometers that are perpendicular to each other. in case