A Study on the Alignment of Aiming Sight Unit for Infrared Homing Missile

Jung, Young-Sook

Journal of the Korea Institute of Military Science and Technology 2004;7(3):30-37.

Young-Sook Jung

Agency for Defense Development

적외선 호밍 유도탄의 조준축 정렬에 관한 연구

정영숙

국방과학연구소

Abstract

For a proper operation of portable air defense IR terminal homing missile to the rapid intruding target, the boresight of an IR seeker of the missile should be accurately aligned with the gunner's aiming sight. Before a gunner fires the missile, he tries to keep the target within the circle of ASU ensuring the seeker to lock on the target correctly. In this paper, using an electrical seeker caging loop and IR detector signal characteristics, a precise aligning method between the seeker boresight and the LOS(Line of Sight) of ASU(Aiming Sight Unit) was studied. Although every seeker has slightly different SLA (Signal of Look Angle) output, we can get negligible alignment error through a fine tuning method of electrical caging signal. This alignment procedure was also adopted in K-PSAM system.