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Proceedings Paper

An advanced LS algorithm for monitoring ground deformation over large area using ALOS PALSAR data
Author(s): Hongan Wu; Chao Wang; Hong Zhang; Yixian Tang
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Paper Abstract

To overcome the shortage of conventional least squares (LS) DInSAR technique which can only obtain the optimal deformation under ideal condition, we propose an advanced LS algorithm to retrieve ground deformation over large areas. In this algorithm, two extensions are derived. First, the atmospheric phase screen (APS) is removed from the differential interferometric phases by temporal low-pass filtering. Second, topographic errors are considered in the linear model to be separated from deformation. The proposed algorithm has been tested with an ALOS PALSAR data set relative to southern Jiangsu Province, covering the cities of Suzhou and Wuxi, East China. Finally, leveling data validate the results.

Paper Details

Date Published: 10 July 2009
PDF: 6 pages
Proc. SPIE 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 74900O (10 July 2009); doi: 10.1117/12.836638
Show Author Affiliations
Hongan Wu, Institute of Remote Sensing Applications (China)
Ctr. for Earth Observation and Digital Earth (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Chao Wang, Ctr. for Earth Observation and Digital Earth (China)
Hong Zhang, Ctr. for Earth Observation and Digital Earth (China)
Yixian Tang, Ctr. for Earth Observation and Digital Earth (China)


Published in SPIE Proceedings Vol. 7490:
PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering
Honghua Tan; Qi Luo, Editor(s)

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