A study of land subsidence with PS-InSAR method based on wavelet phase analysis

Author

Wang, Fan ; Huang, Zhaoquan ; Zhang, Dengrong

Author_Institution

Inst. of Space Inf. Tech., Zhejiang Univ., Hangzhou

fYear

2009

fDate

20-22 May 2009

Firstpage

1

Lastpage

6

Abstract

By estimating the phase information of stable natural reflectors or permanent scatterers of a set of SAR images, Persistent Scatterers for SAR Interferometry (PSInSAR) can be used to obtain the land subsidence information at milimeter level while the serious noises of multi-temporal SAR images which make it difficult. In this study, we study the influence of PS-InSAR method based on wavelet phase analysis to the PSs selection and surface deformation monitoring. We then use the method to process ENVISAT SAR images covering Jiaxing city in Zhejiang province in China. The experiment results have shown its effectiveness.

Keywords

image processing; radar interferometry; remote sensing by radar; synthetic aperture radar; topography (Earth); China; ENVISAT SAR image processing; Jiaxing city; PS-InSAR; Persistent Scatterers; SAR Interferometry; Zhejiang province; image noise; land subsidence; surface deformation monitoring; wavelet phase analysis; Cities and towns; Decorrelation; Image analysis; Interferometry; Monitoring; Phase estimation; Phase noise; Radar scattering; Surface waves; Wavelet analysis; PS; land subsidence; wavelet;

fLanguage

English

Publisher

ieee

Conference_Titel

Urban Remote Sensing Event, 2009 Joint

Conference_Location

Shanghai

Print_ISBN

978-1-4244-3460-2

Electronic_ISBN

978-1-4244-3461-9

Type

conf

DOI

10.1109/URS.2009.5137717

Filename

5137717