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	Study of jamming of the frequency modulation infrared seekers
	Qian F. ; Guo J. ; Shao J. F. ; Wang T. F.
	2013
会议日期	2013
会议地点	Conference Location
英文摘要	The threat of the IR guidance missile is a direct consequence of extensive proliferation of the airborne IR countermeasure. The aim of a countermeasure system is to inject false information into a sensor system to create confusion. Many optical seekers have a single detector that is used to sense the position of its victim in its field of view. A seeker has a spinning reticle in the focal plane of the optical system that collects energy from the thermal scene and focuses it on to the detector. In this paper, the principle of the conical-scan FM reticle is analyzed. Then the effect that different amplitude or frequency modulated mid-infrared laser pulse acts on the reticle system is simulated. When the ratio of jamming energy to target radiation (repression) gradually increases, the azimuth error and the misalignment angle error become larger. The results show that simply increasing the intensity of the jamming light achieves little, but it increases the received signal strength of the FM reticle system, so that the target will be more easily exposed. A slow variation of amplitude will warp the azimuth information received by the seeker, but the target can't be completely out of the missile tracking. If the repression and the jamming frequency change at the same time, the jamming effects can be more obvious. When the jamming signal's angular frequency is twice as large as the carrier frequency of the reticle system, the seeker will can't receive an accurate signal and the jamming can be achieved. The jamming mechanism of the conical-scan FM IR seeker is described and it is helpful to the airborne IR countermeasure system.
收录类别	CPCI-S
会议录	Proceedings of SPIE
ISSN号	0277-786X978-0-8194-9776-5
内容类型	会议论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/41123]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Qian F.,Guo J.,Shao J. F.,et al. Study of jamming of the frequency modulation infrared seekers[C]. 见:. Conference Location. 2013.

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