Verification of phase unwrapping using topographic maps

Author

Xu, Wei ; Cumming, Ian

Author_Institution

Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

1

fYear

1998

fDate

6-10 Jul 1998

Firstpage

77

Abstract

To verify InSAR phase unwrapping under various complicated types of topography, simulated InSAR data is not sufficient. To use real InSAR data in verification of phase unwrapping, InSAR images should be properly registered to accurate topographic maps. By using a 2-step registration, the 2-dimensional registration of SAR images can be implemented as two 1-dimensional registrations. The resultant registration can be as accurate as one pixel. After registration, topographic maps can be used to verify the InSAR phase unwrapping

Keywords

geophysical signal processing; geophysical techniques; image registration; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; topography (Earth); 2-step registration; InSAR; complex topography; geophysical measurement technique; image registration; interferometric SAR; land surface topography; phase unwrapping; radar imaging; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; topographic map; verification; Azimuth; Computational modeling; Computer simulation; Digital elevation models; Geometry; Linear approximation; Orbits; Solid modeling; Surface topography; Synthetic aperture radar interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International

Conference_Location

Seattle, WA

Print_ISBN

0-7803-4403-0

Type

conf

DOI

10.1109/IGARSS.1998.702804

Filename

702804