A PolSAR ship detector using full combination of polarimetric channel

摘要

Polarimetric Synthetic Aperture Radar (PolSAR) is an advanced sensor which can achieve echoes from the ship in four different polarization channels. Given a proper weighting vector of each channel in a combination process, the contrast between ships and background can be enhanced which is a huge benefit. In this paper, a new ship detector is proposed based on an automatic way to evaluate the right weighting vector. In order to speed up the algorithm, a simulated annealing particle swarm optimization (SA-PSO) is used to search the optimal solution in the complex space. Finally, a Fine Quad Radarsat-2 image is used between PWF and the proposed method, which proves the effectiveness and availability of the proposed method.