| 高分辨率雷达卫星COSMO-SkyMed干涉测量生成DEM的实验研究 |
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| 引用本文： | 蒋厚军,廖明生,张路,王腾.高分辨率雷达卫星COSMO-SkyMed干涉测量生成DEM的实验研究[J].武汉大学学报(信息科学版),2011,36(9):1055-1058. |
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| 作者姓名： | 蒋厚军 廖明生 张路 王腾 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家863计划资助项目(2009AA12Z1464); 国家973计划资助项目(2007CB714405) |
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| 摘 要： | 介绍了COSMO-SkyMed对地观测系统,分析了高分辨率SAR传感器和Tandem观测星座与相干性之间的关系,并利用间隔1 d的COSMO-SkyMed Tandem数据生成了祁连山区的DEM。提出通过对无地形变化的差分干涉相位进行滤波来提取大气和轨道误差引起的测量偏差,探讨了实验干涉数据去相干的因素,并将生成的DEM与ASTER GDEM进行了对比。
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| 关 键 词： | COSMO-SkyMed 雷达干涉测量 数字高程模型 串飞模式 相干性 |
High Resolution SAR Interferometric DEM Reconstruction with COSMO-SkyMed Tandem Data |
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| JIANG Houjun LIAO Mingsheng ZHANG Lu WANG Teng.High Resolution SAR Interferometric DEM Reconstruction with COSMO-SkyMed Tandem Data[J].Geomatics and Information Science of Wuhan University,2011,36(9):1055-1058. |
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| Authors: | JIANG Houjun LIAO Mingsheng ZHANG Lu WANG Teng |
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| Institution: | JIANG Houjun1 LIAO Mingsheng1 ZHANG Lu1 WANG Teng1(1 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | We introduce COSMO-SkyMed Earth observation system,and explore the relationship between coherence and high resolution SAR and Tandem constellation.A DEM of Mt.Qilian of China is generated by InSAR with COSMO-SkyMed Tandem data.We propose a method based on lowpass filtering on differential interferometric phase to estimate height error induced by atmosphere and orbit error,and analyze decorrelation factors.Compared with ASTER GDEM,the COSMO-SkyMed DEM shows more details.The experimental results demonstrate t... |
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| Keywords: | COSMO-SkyMed InSAR DEM Tandem coherence |
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