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中文摘要：
极化合成孔径雷达（PolSAR）系统必须经过极化定标才能有效的获取极化信息,其中基于点目标的极化定标算法具有简单、易用的特点从而广泛应用。在Whitt提出的点目标极化定标算法的基础上,考虑了载机姿态对极化定标的影响,进行了改进。并利用电子所研制的一部机载PolSAR系统进行了极化外定标实验验证,实验结果表明利用改进算法进行极化定标能够获得更加准确的极化定标参数。
英文摘要：
The PolSAR system must be calibrated before obtain polarimetric information effectively.The polarimetric calibration algorithm based on point targets is simple and convenient which is used widely.Improved the polarimetric calibration algorithm proposed by Whitt considering the impact of airplane attitude.And the improved algorithm is proved by polarimetric experiment using a PolSAR system developed by IE（Institute of electronics）.The results show that the improvement could acquire polarimetric calibration parameter more accurately.
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