Single-pass bistatic sar interferometry using fixed-receiver configurations

Theory and experimental validation

Journal article (2010)

Authors

Sergi Duque Universitat Politecnica de Catalunya
Paco López-Dekker Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Jordi J. Mallorqui Universitat Politecnica de Catalunya
Research Group
Mathematical Geodesy and Positioning (CEG) (TU Delft)
Interferometry Synthetic aperture radar Bistatic configurations
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Published Date

2010-6

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Mathematical Geodesy and Positioning

Abstract

In this paper, bistatic interferometry using fixed-receiver configurations is addressed both theoretically and experimentally. The analytical expressions for interferometric phase and height sensitivity are derived, and a full interferometric processing chain for digital elevation model (DEM) generation is presented. The derived expressions are general, and they can be applied to two possible acquisition geometries: backscattering and forward scattering. The theoretical developments are complemented with experimental results done with the bistatic receiver Synthetic Aperture radar Bistatic Receiver for INterferometric Applications. The obtained DEMs are compared with a DEM from the Shuttle Radar Topography Mission and a digital terrain model from the Institut Cartografic de Catalunya. The comparison allows one to validate the results and demonstrate to which particular features of the scene that the bistatic radar is sensitive.