An advanced LS algorithm for monitoring ground deformation over large area using ALOS PALSAR data

Hongan Wu; Chao Wang; Hong Zhang; Yixian Tang

doi:10.1117/12.836638

10 July 2009 An advanced LS algorithm for monitoring ground deformation over large area using ALOS PALSAR data

Hongan Wu, Chao Wang, Hong Zhang, Yixian Tang

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.

Citation Download Citation

Hongan Wu, Chao Wang, Hong Zhang, and 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); https://doi.org/10.1117/12.836638

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available