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	Study on effect of polarization for improving signal noise ratio of stellar objects in daytime
	Zhang Rui-Jin; Xian Hao; WEi Kai; Rao Chang-Hui
	2011
会议名称	Proceedings of SPIE - The International Society for Optical Engineering, v 8191, 2011, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies
会议日期	2011
卷号	8191
通讯作者	Zhang Rui-Jin
中文摘要	Sky background is one of the main noise sources in astronomy observation. Most of the telescopes work well in nighttime with low sky background, but do not work anymore in daytime with strong sky background. Polarization filtering is a critical method that can be used to suppress the sky background and improve the signal noise ratio (SNR) of object signal. Experimental device with polarization filtering technology was constructed in 1.8m adaptive optics (AO) telescope of Yunnan observatory, to identify the effect of polarization filtering technology. Experimental results indicate that the SNR (ratio of object energy to noise's mean square deviation) of stellar objects could be improved to 1 to 3 times at different observation conditions, which is significative to star detection in daytime. Experimental results also indicate that polarization filtering technology is effective and important in observing different kinds of stellar objects in daytime condition. Furthermore, it also makes it possible to apply our AO system in daytime in future.
英文摘要	Sky background is one of the main noise sources in astronomy observation. Most of the telescopes work well in nighttime with low sky background, but do not work anymore in daytime with strong sky background. Polarization filtering is a critical method that can be used to suppress the sky background and improve the signal noise ratio (SNR) of object signal. Experimental device with polarization filtering technology was constructed in 1.8m adaptive optics (AO) telescope of Yunnan observatory, to identify the effect of polarization filtering technology. Experimental results indicate that the SNR (ratio of object energy to noise's mean square deviation) of stellar objects could be improved to 1 to 3 times at different observation conditions, which is significative to star detection in daytime. Experimental results also indicate that polarization filtering technology is effective and important in observing different kinds of stellar objects in daytime condition. Furthermore, it also makes it possible to apply our AO system in daytime in future.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7763]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	中国科学院光电技术研究所
推荐引用方式 GB/T 7714	Zhang Rui-Jin,Xian Hao,WEi Kai,et al. Study on effect of polarization for improving signal noise ratio of stellar objects in daytime[C]. 见:Proceedings of SPIE - The International Society for Optical Engineering, v 8191, 2011, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies. 2011.

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