| 机载偏振遥感仪的偏振定标 |
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| 引用本文： | 邵卫东,王培,郑亲波,施志华.机载偏振遥感仪的偏振定标[J].红外与毫米波学报,2003,22(2):137-140. |
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| 作者姓名： | 邵卫东 王培 郑亲波 施志华 |
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| 作者单位： | 1. 苏州大学通讯与电子工程系,江苏,苏州,215021;中国科学院上海技术物理研究所,上海,200083
2. 中国科学院上海技术物理研究所,上海,200083 |
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| 摘 要： | 针对λ／4云母波片的相位延迟量相对误差为3％—5％和一些云母片对于沿快轴和慢轴振动的光具有不同的吸收系数，设计了一套基于极值法的偏振标定系统，分析了波片快慢轴吸收系数和相位延迟量对输出光强极值的影响，得到了各个通道波片的标定结果。利用上述结果，对理想线偏振光和非偏光进行了定标，其偏振度误差均小于1％。
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| 关 键 词： | 机载偏振遥感仪 偏振定标 λ／4云母波片 相位延迟量 相对误差 极值法 偏振光 偏振度 |
| 收稿时间： | 2002/6/3 |
| 修稿时间： | 2002年6月3日 |
POLARIMETRIC CALIBRATION ON AIRBORNE REMOTE SENSING POLARIMETER |
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| SHAO Wei Dong, WANG Pei Gang ZHENG Qing Bo SHI Zhi Hua.POLARIMETRIC CALIBRATION ON AIRBORNE REMOTE SENSING POLARIMETER[J].Journal of Infrared and Millimeter Waves,2003,22(2):137-140. |
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| Authors: | SHAO Wei Dong WANG Pei Gang ZHENG Qing Bo SHI Zhi Hua |
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| Abstract: | Based on 3%～5% relative errors of retarder for λ /4 mica waveplate and different absorption coefficients for the light oscillating along the fast axis and slow axis of mica waveplates, a polarimetric calibration system of the extremum method was proposed, and the influence of both waveplate retarder and its different absorption coefficients on the output light intensity was analysed. Precision measurement results of waveplates in six channels were obtained. The polarized degrees for the ideal linear polarized light and non polarized light were calibrated on the basis of the above results, and the relative errors were less than 1%. |
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| Keywords: | remote sensing degree of polarization λ /4 wave plate polarizing calibration |
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