Improvement in Bistatic SAR coherence through spatially variant polarimetry

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 4Sprache: EnglischTyp: PDF

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Andre, Daniel; Morrison, Keith (Centre for Electronic Warfare, Cranfield University, UK)

Synthetic Aperture Radar (SAR) Coherent Change Detection (CCD) and interferometry depend on high coher-ence between pairs of SAR images. In principle these approaches allow a sensitive change detection for example of vehicle tracks or due to ground subsidence, both applications having important civilian and military benefits. This work investigates bistatic SAR coherence, and in particular a polarimetric technique to improve bistatic SAR image coherence. It is shown that in the general bistatic SAR-near-field scenario, for example with a fixed ground-based receiver, coherence between the two bistatic SAR images will be improved with a spatially variant polarization decomposition.