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- W3150361455 abstract "Detection of small-sized maritime targets is an important task for a marine surveillance radar. Recently, with the emergence of a marine surveillance radar system that has a narrow azimuth beamwidth and rapidly rotating antennas, the available dwell time for detecting a maritime target is usually very short. This short dwell time considerably degrades the performance of conventional detectors, especially those focusing on small-sized targets. In this paper, we propose an efficient detector for small-sized maritime targets to provide a reliable detection performance, even in short dwell times. The proposed scheme is based on a new joint metric, which results from the product of the magnitude and difference features in the Doppler spectra. We discriminate the target bins from sea clutter bins using a statistical discriminator based on the joint metric, whose probability density function follows the product distribution of standard gamma distributions. Compared to conventional detectors, the proposed scheme can provide a robust performance in terms of the average signal-to-clutter ratio as well as the detection rate, especially in shorter dwell times." @default.
- W3150361455 created "2021-04-13" @default.
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- W3150361455 date "2021-03-30" @default.
- W3150361455 modified "2023-10-16" @default.
- W3150361455 title "Robust Maritime Target Detector in Short Dwell Time" @default.
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- W3150361455 doi "https://doi.org/10.3390/rs13071319" @default.
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