6: SAR interferometry
Abstract
This chapter addresses the main principles of SAR Interferometry, exploited for topographic applications and monitoring of surface deformations. All processing steps are described, starting from the image coregistration, passing through the interferogram generation, up to the phase unwrapping. Fundamental concepts as orthogonal baseline and coherence are provided.
Keywords
Interferogram; baseline; phase unwrapping; coregistration; coherence; decorrelation; ambiguity height; topography; deformation
Interferometric SAR (InSAR) is a technique able to provide the 3D localization of the ground targets present in the observed scene. This is achieved by properly combining the data acquired from two different antenna phase centers ...
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