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Proceedings Paper

DEM generation in cloudy-rainy mountainous area with multi-baseline SAR interferometry
Author(s): Hong'an Wu; Yonghong Zhang; Decai Jiang; Yonghui Kang
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Paper Abstract

Conventional singe baseline InSAR is easily affected by atmospheric artifacts, making it difficult to generate highprecision DEM. To solve this problem, in this paper, a multi-baseline interferometric phase accumulation method with weights fixed by coherence is proposed to generate higher accuracy DEM. The mountainous area in Kunming, Yunnan Province, China is selected as study area, which is characterized by cloudy weather, rugged terrain and dense vegetation. The multi-baseline InSAR experiments are carried out by use of four ALOS-2 PALSAR-2 images. The generated DEM is evaluated by Chinese Digital Products of Fundamental Geographic Information 1:50000 DEM. The results demonstrate that: 1) the proposed method can reduce atmospheric artifacts significantly; 2) the accuracy of InSAR DEM generated by six interferograms satisfies the standard of 1:50000 DEM Level Three and American DTED-1.

Paper Details

Date Published: 8 March 2018
PDF: 6 pages
Proc. SPIE 10611, MIPPR 2017: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications, 106110A (8 March 2018); doi: 10.1117/12.2283448
Show Author Affiliations
Hong'an Wu, Chinese Academy of Surveying and Mapping (China)
Yonghong Zhang, Chinese Academy of Surveying and Mapping (China)
Decai Jiang, Chinese Academy of Surveying and Mapping (China)
Yonghui Kang, Chinese Academy of Surveying and Mapping (China)


Published in SPIE Proceedings Vol. 10611:
MIPPR 2017: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications
Nong Sang; Jie Ma; Zhong Chen, Editor(s)

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