| 晨昏时段大气辐射对成像有效信噪比的影响 |
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| 引用本文： | 宋鹏飞,王世涛,王小勇.晨昏时段大气辐射对成像有效信噪比的影响[J].航天返回与遥感,2009,30(2):30-36. |
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| 作者姓名： | 宋鹏飞 王世涛 王小勇 |
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| 作者单位： | 1. 北京空间机电研究所,北京,100076
2. 中国空间技术研究院,北京,100094 |
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| 摘 要： | 从成像有效信噪比的角度出发，利用MODTRAN辐射传输软件，分析计算了晨昏时段大气辐射的分布特点及其对成像的潜在影响。结果表明选择近红外成像谱段，可有效抑制大气背景辐射，实现晨昏时段一定观测倾角下的目标探测能力。
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| 关 键 词： | 有效信噪比 程辐射 辐射传输 晨昏 遥感 |
Impact of Atmospheric Radiance on Efficient Imaging Signal-to-noise Ratio in Twilight Environment |
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| Song Pengfei,Wang Shitao,Wang Xiaoyong.Impact of Atmospheric Radiance on Efficient Imaging Signal-to-noise Ratio in Twilight Environment[J].Spacecraft Recovery & Remote Sensing,2009,30(2):30-36. |
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| Authors: | Song Pengfei Wang Shitao Wang Xiaoyong |
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| Institution: | 1 Beijing Institute of Space Mechanics & Electricity;Beijing 100076;2 China Academy of Space Technology;Beijing 100094 |
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| Abstract: | Based on the model of effective signal-to-noise ratio,the distribution feature and potential impacts of the atmospheric radiance in twilight environment were proposed by using MODTRAN.Further simulation indicated that path radiance could be efficiently restrained by selecting NIR band,and met the need of target detection in twilight environment under certain observation inclination angle. |
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| Keywords: | Effective signal-to-noise ratio Radiative transfer Path radiance Twilight environment Re-mote sensing |
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