| 星载SAR干涉测量生成DEM的两个关键技术的研究 |
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| 引用本文： | 潘斌,杨杰,詹总谦.星载SAR干涉测量生成DEM的两个关键技术的研究[J].长江科学院院报,2004,21(3):71-75. |
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| 作者姓名： | 潘斌 杨杰 詹总谦 |
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| 作者单位： | 武汉大学,遥感信息工程学院,湖北,武汉,430079;武汉大学,测绘遥感信息工程国家重点实验室,湖北,武汉,430079 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以欧空局重复轨道的ERS-1/2数据为例,论述了星载SAR干涉测量生成DEM过程中的关键技术及其实现.讨论了InSAR生成DEM的一般过程,其中的复型数据的高精度配准与相位解缠是生成DEM所必须解决的两个关键.重点论述了达到子像元精度整体匹配技术的复图像高精度配准方法,各种相位解缠方法及其优缺点.通过生成一幅德国波恩地区的DEM,阐述了相应软件的研制及实验结果.
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| 关 键 词： | InSAR(星载合成孔径雷达) DEM(数字高程模型) 图像匹配 相位解缠 |
| 文章编号： | 1001-5485(2004)03-0071-05 |
Key technologies on resolving DEM generation with space-borne SAR Interferometry |
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| PAN Bin,SHU Ning,YANG Jie,ZHAN Zong-qian.Key technologies on resolving DEM generation with space-borne SAR Interferometry[J].Journal of Yangtze River Scientific Research Institute,2004,21(3):71-75. |
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| Authors: | PAN Bin SHU Ning YANG Jie ZHAN Zong-qian |
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| Affiliation: | PAN Bin~1,SHU Ning~1,YANG Jie~2,ZHAN Zong-qian~1 |
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| Abstract: | Two key technologies on resolving DEM generation with space-borne SAR interferometry are described, taking ERS- 1/2 data for example. Firstly, the procedure of InSAR DEM generation is introduced, including two key problems needed to be solved,i.e., highly precise registration of complex SAR images and phase unwrapping. Then, an image registration method, by which sub-image precision can reach matching that of whole image, is represented, and the advantages and disadvatages of several phase unwrapping methods are discussed. Lastly, a DEM generation example of Born area in German with the software developed by the authors of this paper is demonstrated. |
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| Keywords: | InSAR(interferometric synthetic apertare vadav) DEM(digital elevation model) imager registration phase unwrapping |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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