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遥感技术与应用  2009, Vol. 24 Issue (3): 291-296    DOI: 10.11873/j.issn.1004-0323.2009.3.291
技术研究与图像处理     
利用ERS-1/2串接雷达干涉建立高山地区数字高程模型的实验研究
罗小军,黄丁发,刘国祥
(西南交通大学土木工程学院测量工程系|四川 成都〓610031)
Experimental Investigation on Generating Digital Elevation |Model of Highly Mountainous Area withERS-1/2 Tandem Radar Interferometry
LUO Xiao-jun,HUANG Ding-fa,LIU Guo-xiang
(Department of Surveying Engineering,School of Civil Engineering,Southwest JiaotongUniversity,Chengdu 610031,China)
 全文: PDF(1429 KB)  
摘要:

以昆仑山局部地区为例,利用ERS-1/2串接雷达干涉有效建立了高山地区数字高程模型,并以美国宇航局SRTM高程数据为标准,选取高相干系数点,采用多项式拟合法对实验生成的数字高程模型进行校正,得到实验区较高精度的数字高程模型。最后以SRTM高程数据和美国地质调查局GTOPO30高程数据作为基准,对实验生成的数字高程模型的精度进行统计分析和评价,并分析了影响ERS-1/2干涉测量精度的主要因素。实验结果表明:采用ERS串接雷达干涉和基于多控制点的多项式拟合校正,可有效建立高山地区高精度的数字高程模型;在我国西部地区,建议采用ERS-1/2串接雷达干涉建立或更新数字高程模型。

关键词:
串接雷达干涉
高山地区数字高程模型精度评定校正    
Abstract:

Taking a localized area in Kunlun Mountain as an example,the digital elevation model (DEM) in the highly mountainous area is effectively generated with ERS-1/2 tandem radar interferometry.The accuracy of the achieved DEM is assessed statistically by taking SRTM DEM and USGS GTOPO30 DEM as the benchmark.The main reason affecting the accuracy of interferometry with ERS tandem radar is discussed.The experimental results show that ERS tandem radar interferometry can be used to successfully extract DEMs for highly mountainous areas.It is therefore recommended that ERS tandem radar interferometry might be applied to generate or update DEMs for the western parts of China.
 

Key words: Tandem radar interferometry    Highly mountainous area    DEM    Accuracy assessment    Correction
收稿日期: 2008-09-02 出版日期: 2010-01-20
:  TP 79  
基金资助:

国家自然科学基金(40774004)、“地球探测与信息技术”教育部重点实验室开放基金(2008DTKF003)。

作者简介: 罗小军(1974-)|男|博士|讲师|从事摄影测量与遥感、InSAR理论及应用研究。E-mail:lxj@swjtu.edu.cn。
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引用本文:

罗小军,黄丁发,刘国祥. 利用ERS-1/2串接雷达干涉建立高山地区数字高程模型的实验研究[J]. 遥感技术与应用, 2009, 24(3): 291-296.

LUO Xiao-jun,HUANG Ding-fa,LIU Guo-xiang. Experimental Investigation on Generating Digital Elevation |Model of Highly Mountainous Area withERS-1/2 Tandem Radar Interferometry. Remote Sensing Technology and Application, 2009, 24(3): 291-296.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2009.3.291        http://www.rsta.ac.cn/CN/Y2009/V24/I3/291

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