| POS数据在机载干涉SAR运动补偿中的应用 |
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| 引用本文： | 韦立登,向茂生,吴一戎.POS数据在机载干涉SAR运动补偿中的应用[J].遥感技术与应用,2007,22(2):188-194. |
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| 作者姓名： | 韦立登 向茂生 吴一戎 |
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| 作者单位： | (中国科学院电子学研究所微波成像技术国家重点实验室,北京 100080) |
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| 摘 要： | 提出了一种利用高精度的定位定向系统(POS)数据,在SAR成像阶段实现机载干涉SAR运动补偿及图像配准的成像处理方法。该方法针对机载干涉SAR系统的双天线雷达数据对的特点,在成像阶段直接利用高精度的POS数据完成干涉SAR图像对的位置误差补偿、干涉相位误差补偿以及自动配准等过程。实际处理结果表明,该方法可以有效地提高机载干涉SAR的图像质量,改善复图像对之间的相干性,非常适用于机载双天线干涉SAR雷达数据的成像处理过程。
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| 关 键 词： | 机载干涉SAR POS 运动补偿 成像处理 数字高程模型 |
| 文章编号： | 1004-0323（2007）02-0188-07 |
| 收稿时间： | 2006-11-09 |
| 修稿时间： | 2006-11-092007-04-03 |
POS Data Using for Motion Compensation of Airborne InSAR |
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| WEI Li-Deng,XIANG Mao-Sheng,WU Yi-Rong.POS Data Using for Motion Compensation of Airborne InSAR[J].Remote Sensing Technology and Application,2007,22(2):188-194. |
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| Authors: | WEI Li-Deng XIANG Mao-Sheng WU Yi-Rong |
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| Affiliation: | (The National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Chinese Academy of Sciences,Beijing100080,China) |
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| Abstract: | The paper presents a novel approach for the airborne InSAR system imaging processing with motion compensation and automatic registration.Basing upon the feature of the dual-antenna radar data from the airborne InSAR system and using the high precise POS data,the novel approach can accomplish the position error compensation,interferometric phase error compensation and automatic registration of the InSAR image-pair directly at the imaging processing stage.The practical results indicate that the proposed approach is very suitable for the imaging process of a dual-antenna airborne InSAR system with its efficiency in improving the image quality and enhancing the image-pair coherence. |
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| Keywords: | POS |
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