Ship detection with cosmo-skymed pingpong data using the dual-pol ratio anomaly detector

摘要

Extensive work has been carried out on detecting ships usingudspace-borne Synthetic Aperture Radar (SAR) systems. However,udthe identification of small vessels is still challenging especiallyudwhen the sea conditions are rough. In this work, audnew detector is proposed based on dual-polarized incoherentudSAR images. Small ships have a stronger cross polarizationudaccompanied by a higher cross- over co-polarizationudratio compared to sea. This is the rational at the base of theuddetector.udThe new detector is tested with dual-polarization HH/HVudPINGPONG Cosmo-SkyMed images acquired over the NorthudSea. The test area is near Rotterdam where a large number ofudships are expected.