| 基于GPS的InSAR干涉图大气效应校正方法研究 |
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| 引用本文： | 李爱国,张诗玉. 基于GPS的InSAR干涉图大气效应校正方法研究[J]. 测绘科学, 2011, 36(2): 124-126 |
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| 作者姓名： | 李爱国 张诗玉 |
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| 作者单位： | 长安大学地测学院;河南理工大学测绘学院;河南测绘局矿山空间信息技术国家测绘局重点实验室;武汉大学卫星导航定位技术研究中心; |
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| 基金项目： | 矿山空间信息技术国家测绘局重点实验室基金资助(KLM201005) |
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| 摘 要： | 大气折射延迟是InSAR测量的一个重要误差源,严重影响对干涉图的正确解译,因此必须对其进行削弱或消除,利用GPS连续运行站估计的大气天顶延迟可对干涉图中的大气效应进行校正.但离散的GPS天顶延迟须进行空间插值才能满足InSAR的高分辨率要求.本文基于天津的GPS观测数据,利用Berense、PANDA软件估算了天顶延迟...
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| 关 键 词： | InSAR 干涉图 GPS 大气延迟 插值 |
Reduction of atmospheric effects on InSAR interferograms based on GPS |
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| LI Ai-guo,ZHANG Shi-yu. Reduction of atmospheric effects on InSAR interferograms based on GPS[J]. Science of Surveying and Mapping, 2011, 36(2): 124-126 |
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| Authors: | LI Ai-guo ZHANG Shi-yu |
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| Affiliation: | ③④(①School of Geological and Surveying Engineering,Chang’an University,Xi’an 710054,China;②School of Surveying and Mapping,Henan Polytechnic University,Henan Jiaozuo 454000,China;③Key Laboratory of Mine Spatial Information Technologies,State Bureau of Surveying and Mapping,Zhengzhou 450052,China;④GNSS Engineering Research Center,Wuhan University,Wuhan 430079,China) |
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| Abstract: | The atmospheric effect is an important kind of error sources of InSAR,which influences the correct interpretation of interferograms.The atmospheric zenith delay,estimated from GPS continuous operating stations,is usually used to mitigate atmospheric effects on interferograms.However,for the sparse distribution,GPS zenith delay needs to be interpolated to match the high spatial resolution of InSAR.The zenith delay inferred from Berense and PANDA software over IGS stations showed high consistency.Then the res... |
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| Keywords: | InSAR interferogram GPS atmospheric delay interpolation |
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