| 干涉SAR的二维相位展开算法研究 |
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| 引用本文： | 唐健,王贞松.干涉SAR的二维相位展开算法研究[J].遥感学报,1997,1(3):172-177,241. |
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| 作者姓名： | 唐健 王贞松 |
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| 作者单位： | 中国科学院电子学研究所,北京 100080;中国科学院电子学研究所,北京 100080 |
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| 基金项目： | 国家自然科学基金;国家高技术863-308资助项目 |
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| 摘 要： | 该文讨论了干涉合成孔径雷达的二维相位展开算法。先简要给出了ＩＮＳＡＲ相位差图误差的统计特性，并说明了该误差可以近似为高斯型噪声。然后介绍了利用ＦＦＴ的最小二乘和二维相位展开算法，实验表明ＬＳ－ＦＦＴ算法对高斯白噪声具有很好的抗干扰性。
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| 关 键 词： | 合成孔径 雷达 二维相位展开 最小二乘 |
Research on 2-D Phase Unwrapping Algorithm for Interferometric SAR |
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| Tang Jian and Wang Zhensong.Research on 2-D Phase Unwrapping Algorithm for Interferometric SAR[J].Journal of Remote Sensing,1997,1(3):172-177,241. |
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| Authors: | Tang Jian and Wang Zhensong |
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| Institution: | Institute of Electronics, Chinese Academy of Sciences, Beijing 100080;Institute of Electronics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | This paper mainly fpcuses on the 2-D Phase unwrapping algorithm for Interferometric Synthetic Aperture Rader (INSAR).The statistical property of error in the phase differences of INSAR (Interferogram) is firstly presented in brief, which shows this error could be assumed to be Gaussian noise. The algorithm of least-square 2-D phase unwrapping using FFT(LS-FFT) is then discussed, and it is proved to have a good property of robustness in Gaussian noise. Finally, the idea of parallel processing for LS-FFT is put forward, and is verified with the computer simulations. |
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| Keywords: | Interferometric synthetic aperture radar(INSAR) 2-D phase unwrapping Gaussian noise Least-square Mirror reflection Parallel processing |
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