Coherent Surface Clutter Suppression Techniques with Topography Estimation for Multi-Phase-Center Radar Ice Sounding

摘要

Radar ice sounding enables measurement of the thickness and internal structures of the large ice sheets on Earth. Surfacernclutter masking the signal of interest is a major obstacle in ice sounding. Algorithms for surface clutter suppressionrnbased on multi-phase-center radars are presented. These algorithms incorporate estimation of the required topographicalrninformation, thereby making the processing independent of such external data. The algorithms are applied to data collectedrnby ESA’s POLarimetric Airborne Radar Ice Sounder (POLARIS) over Antarctica in February 2011.