The GPRI Multi-mode Differential Interferometric Radar for Ground-based Observations

Conference: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
04/23/2012 - 04/26/2012 at Nuremberg, Germany

Proceedings: EUSAR 2012

Pages: 4Language: englishTyp: PDF

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Werner, Charles; Wiesmann, Andreas; Strozzi, Tazio; Caduff, Rafael; Wegmüller, Urs (Gamma Remote Sensing, CH-3073 Gümligen, Switzerland)
Kos, Andrew (Terrarsense AG, CH-9470 Werdenberg, Switzerland)

We describe the Γ Portable Radar Interferometer (GPRI), an instrument designed to perform ground-based radar interferometry to measure surface deformation with an accuracy < 0.2 mm and generate digital elevation models (DEMs). Ground-based interferometric observations are complementary to spaceborne or airborne SAR based measurements because they can be acquired continuously in order to track rapid deformation and mitigate the effects of temporal decorrelation and atmospheric phase variability. Results from test cases are shown including the Aletsch glacier, Aletschwald, and Kornhaus bridge in Bern.