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A targets detection algorithm is proposed for maritime surveillance by single-channel SAR images. It foresees a preliminary prescreening step, carried out using an adaptive threshold algorithm, followed by a discrimination phase, performed by sub-look analysis. The latter discriminates the pixels detected by the former step in three classes, i.e. targets, sea, and azimuth ambiguity. The algorithm...
The paper focuses on similarities and difference between adaptive threshold and sub-look processing in ship detection by Synthetic Aperture Radar (SAR). The main goal is to formalize the cascade application of both methods to achieve an overall reduction of the false alarm rate. The methods are tested on TerraSAR-X stripmap SAR data collected over the Gulf of Naples, Italy. Input parameters are set...
The paper presents a method to discriminate ship targets from sea background in focused Single-Look Complex (SLC) Synthetic Aperture Radar (SAR) images. The method is based on Doppler Centroid analysis and it is able to generate an estimate ship velocity. Experimental results are presented showing the application of the method to TerraSAR-X data of the Gulf of Naples, Italy.
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