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	The influence of the earth radiation on space target detection system
	Su XF; Chen FS; Cuikun; Liuyan
	2017
DOI	10.1117/12.2262430
英文摘要	In the view of space remote sensing such as satellite detection space debris detection etc. visible band is usually used in order to have the all-weather detection capability long wavelength infrared (LWIR) detection is also an important supplement. However in the tow wave band the earth can be a very strong interference source especially in the dim target detecting. When the target is close to the earth especially the LEO target the background radiation of the earth will also enter into the baffle and became the stray light through reflection the stray light can reduce the signal to clutter ratio (SCR) of the target and make it difficult to be detected. In the visible band the solar albedo by the earth is the main clutter source while in the LWIR band the radiation of the earth is the main clutter source. So in this paper we establish the energy transformation from the earth background radiation to the detection system to assess the effects of the stray light. Firstly we discretize the surface of the earth to different unit and using MODTRAN to calculate the radiation of the discrete point in different light and climate conditions then we integral all the radiation which can reach the baffle in the same observation angles to get the energy distribution finally according the target energy and the non-uniformity of the detector we can calculate the design requirement of the system stray light suppression which provides the design basis for the optical system.
语种	英语
内容类型	会议论文
源URL	[http://202.127.2.71:8080/handle/181331/12106]
专题	上海技术物理研究所_上海技物所
作者单位	Shanghai Inst Tech Phys
推荐引用方式 GB/T 7714	Su XF,Chen FS,Cuikun,et al. The influence of the earth radiation on space target detection system[C]. 见:.

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