| 干涉雷达在DEM测量中的精度影响及处理方法 |
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| 引用本文： | 郭泾平,彭军,向茂生.干涉雷达在DEM测量中的精度影响及处理方法[J].测绘学院学报,1998(3). |
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| 作者姓名： | 郭泾平 彭军 向茂生 |
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| 作者单位： | 郑州大学!郑州450052(郭泾平)，郑州市电信局!郑州450052(彭军)，中国科学院遥感应用研究所!北京100101(向茂生) |
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| 摘 要： | 干涉合成孔径雷达 (INSAR)为数字高程模型 (DEM)测量提供了一种新的手段。它具有同时获取三维信息、测量范围广、空间和高程分辨率高等优点。文中首先扼要介绍了干涉雷达的原理 ,然后重点讨论几个影响测量精度的因素及其处理方法 ,如相关、运动补偿、配准、相位展开等。
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| 关 键 词： | 干涉合成孔径雷达 相关 运动补偿 配准 相位展开 |
Factors Critical to the Mapping Accuracy and Processing Techniques of Topographic Mapping Using Interferometric SAR |
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| Guo,Jingping,Peng,Jun,Xiang,Maosheng.Factors Critical to the Mapping Accuracy and Processing Techniques of Topographic Mapping Using Interferometric SAR[J].Journal of Institute of Surveying and Mapping,1998(3). |
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| Authors: | Guo Jingping Peng Jun Xiang Maosheng |
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| Institution: | Guo Jingping Peng Jun Xiang Maosheng |
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| Abstract: | Interferometric synthetic aperture radar (INSAR) is a new method that may provide a means of estimating 3D information of the Earth's surface with high spatial resolution and height accuracy by using the phase content of the radar signal as an additional information source derived from the complex radar data In this paper,the issues and techniques during the data processing are discussed After a brief historical review,the interferometric radar principle is presented The paper focuses on the factors critical to the mapping accuracy and processing techniques,including discussions of decorrelation,the motion compensation approach,registration and the phase unwrapping methods Especially,the various phase unwrapping methods are given in detail |
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| Keywords: | Interferometric synthetic aperture radar Correlation Motion compensation Registration Phase unwrapping |
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