User-friendly InSAR products - do we need range-Doppler?

Konferenz: EUSAR 2018 - 12th European Conference on Synthetic Aperture Radar
04.06.2018 - 07.06.2018 in Aachen, Germany

Tagungsband: EUSAR 2018

Seiten: 4Sprache: EnglischTyp: PDF

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Zebker, Howard (Stanford University, USA)

InSAR time series analysis of deformation fields almost always starts with processed range-Doppler single look complex (SLC) radar images. These images are then co-registered and pairwise phase differences form the interferograms. Computing coregistered SLCs directly in a desired geometry saves significant data storage and readily produces data products that are easy to analyze in coordinate systems that are well matched to a desired application. Here we demonstrate InSAR data products created using a backprojection algorithm that skips the range-Doppler, coregistration, and elevation compensation steps, greatly simplifying analysis by the end user and opening up InSAR techniques to a wider group of applications.