Abstract
Abstract This paper presents a detection method for stable scatterers (SS) used for single-pass resolution enhancement in spaceborne transmitter (TX) – ground based receiver (RX) bistatic Synthetic Aperture Radar (SAR). Resolution is improved by coherently focusing multiple sub-apertures, each sub-aperture being represented by the data received from a different sub-swath. This requires that the transmitting satellite operate in Terrain Observation with Progressive Scans SAR (TOPSAR) mode. Detecting which zones in the image are common and coherent among the sub-apertures is paramount to image quality and Signal to Noise Ratio (SNR).
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