10 July 2009 An advanced LS algorithm for monitoring ground deformation over large area using ALOS PALSAR data
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Proceedings Volume 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering; 74900O (2009) https://doi.org/10.1117/12.836638
Event: International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2009), 2009, Zhangjiajie, China
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.
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Hongan Wu, Hongan Wu, Chao Wang, Chao Wang, Hong Zhang, Hong Zhang, Yixian Tang, Yixian Tang, } "An advanced LS algorithm for monitoring ground deformation over large area using ALOS PALSAR data", Proc. SPIE 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 74900O (10 July 2009); doi: 10.1117/12.836638; https://doi.org/10.1117/12.836638
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