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Proceedings Paper

IFSAR phase unwrapping in the presence of Dirichlet boundary conditions
Author(s): George W. Rogers; Arthur W. Mansfield; Houra Rais; Paul L. Poehler
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Paper Abstract

Phase unwrapping is one of the key computational elements in digital elevation model generation from interferometric SAR. In this paper we present a reformulation of the weighted least squares phase unwrapping approach that incorporates Dirichlet boundary conditions. The application of this formulation to the incorporation of control points into the solution as well as for unwrapping the interferogram in stages is discussed. The ability of the weighted least squares approach to fully unwrap an interferogram can be very dependent on the weight matrix used. This has led us to develop an adaptive approach to updating the weight matrix to be used in conjunction with our weighted least squares approach. Examples along the preliminary results based on ERS data will be presented.

Paper Details

Date Published: 15 September 1998
PDF: 8 pages
Proc. SPIE 3370, Algorithms for Synthetic Aperture Radar Imagery V, (15 September 1998); doi: 10.1117/12.321832
Show Author Affiliations
George W. Rogers, Naval Surface Warfare Ctr. (United States)
Arthur W. Mansfield, Consultant to Naval Surface Warfare Ctr. (United States)
Houra Rais, Boeing Corp. (United States)
Paul L. Poehler, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 3370:
Algorithms for Synthetic Aperture Radar Imagery V
Edmund G. Zelnio, Editor(s)

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