An Infrared Guidance Technique

ABSTRACT

Infrared guidance systems generally use a focussing device along with a chopper to get angular information of a target. This requires a critical design of the IR focussing system. In this paper a new technique for obtaining guidance information has been mentioned that uses four IR detectors and avoids focussing devices. It provides guidance signal that can be used with a missile having On-Off control which can turn the missile to keep the source of IR, the target, within a cone with its apex at the missile. As the missile approaches the target, it is thus ensured that the target is brought within the lethal range of the missile warhead.