Semi-active guidance system for a target seeking guided missile

摘要

In a semi-active system of missile guidance, simple illuminating devices, designated as transmitters only, are used for illuminating the target, instead of expensive target tracking devices. The illuminating devices are directed at the targets by the target locating equipment, within the periods of target information renewal. As compared to the target tracking systems, the half width of the directive diagrams of the illuminating device is definitely enlarged and so dimensioned that the illuminated solid angle encompasses the maneuvering space of the target within the period of information renewal.