| 题名: | Study on effect of polarization for improving signal noise ratio of stellar objects in daytime |
| 作者: | Zhang Rui-Jin; Xian Hao; WEi Kai; Rao Chang-Hui
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| 出版日期: | 2011
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| 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
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| 会议日期: | 2011
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| 通讯作者: | Zhang Rui-Jin
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| 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
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| 语种: | 英语
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| 卷号: | 8191
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| 文章类型: | 会议论文
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| 内容类型: | 会议论文
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| URI标识: | http://ir.ioe.ac.cn/handle/181551/7763
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| Appears in Collections: | 自适应光学技术研究室（八室）_会议论文
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| 2011-08-024.pdf（664KB） | 会议论文 | -- | 限制开放 | | View
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| Recommended Citation: | |
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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