| 利用差分滤波进行多基线InSAR相位解缠 |
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| 引用本文： | 张红敏,靳国旺,徐青,秦志远.利用差分滤波进行多基线InSAR相位解缠[J].武汉大学学报(信息科学版),2011,36(9). |
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| 作者姓名： | 张红敏 靳国旺 徐青 秦志远 |
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| 作者单位： | 1. 信息工程大学测绘学院,郑州市陇海中路66号,450052
2. 信息工程大学测绘学院,郑州市陇海中路66号,450052 ／中国科学院电子学研究所微波成像技术国家级重点实验室,北京市北四环西路19号,100190 |
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| 基金项目： | 中国博士后科学基金资助项目(200801111); 国家自然科学基金资助项目(40771142,40871213,41071296); 国家西部1∶50000地形图空白区测图工程资助项目 |
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| 摘 要： | 将差分滤波思想引入到多基线InSAR相位解缠中,以较短基线干涉图解缠结果指导较长基线干涉图的相位解缠,从而扩展相位解缠的非模糊区间,解决较长基线干涉图中欠采样区域的相位解缠难题。利用由SRTM DEM和SIR-C/X-SAR干涉数据获取的DEM进行实验,得到了满意的相位解缠结果。
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| 关 键 词： | 合成孔径雷达干涉测量 多基线 相位解缠 差分滤波 |
Phase Unwrapping Algorithm with Difference Filtering for Multi-baseline InSAR |
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| ZHANG Hongmin JIN Guowang, XU Qing QIN Zhiyuan.Phase Unwrapping Algorithm with Difference Filtering for Multi-baseline InSAR[J].Geomatics and Information Science of Wuhan University,2011,36(9). |
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| Authors: | ZHANG Hongmin JIN Guowang XU Qing QIN Zhiyuan |
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| Institution: | ZHANG Hongmin1 JIN Guowang1,2 XU Qing1 QIN Zhiyuan1(1 Institute of Surveying and Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China)(2 National Key Laboratory of Science and Technology on Microwave Imaging,Institute of Electronics,Chinese Academy of Sciences,19 West Beisihuan Road,Beijing 100190,China) |
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| Abstract: | Phase unwrapping is one of the key techniques of multi-baseline InSAR.In order to provide algorithms for phase unwrapping of multi-baseline InSAR,zero intermediate frequency vector filtering algorithm was used for reference.A new phase unwrapping algorithm based on difference filtering was proposed by inducing difference filtering to phase unwrapping.In this method,phase unwrapping of interferogram with longer baseline was guided by the unwrapped interferogram with shorter baseline,the un-fuzzy phase interv... |
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| Keywords: | InSAR multi-baseline phase unwrapping difference filtering |
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