COMPARISON OF SAR IMAGE GEOMETRIC CORRECTION BASED ON MULTI-RESOLUTION DEMS

被引：0
|
作者：
Han, Kaili [1 ]
Zeng, Qiming [1 ]
Wang, Hui [1 ]
Jiao, Jian [1 ]
机构：
[1] Peking Univ, Inst Remote Sensing & GIS, Beijing 100871, Peoples R China
来源：
IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2018年
基金：
中国国家自然科学基金;
关键词：
SAR geometric correction; SRTM DEM; WorldDEM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Digital elevation model (DEM) is an important input data in geometric correction of Synthetic Aperture Radar (SAR) image. The accuracy of elevation and spatial resolution will affect the result of geometric correction. The quality assessment and comparison of the 12m & 30m resolution WorldDEM products and SRTM v3 and GL1 DEM are carried out, and all the data are respectively used to geometrically correct Radarsat2 SAR images. The results show that WorldDEM elevation accuracy is significantly better than SRTM DEM and can significantly improve the quality of image correction in SAR geometric correction.
引用
收藏
页码：581 / 584
页数：4
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