Overview of radar detection methods for low altitude targets in marine environments

doi:10.23919/JSEE.2024.000026

Abstract

Abstract:

In this paper, a comprehensive overview of radar detection methods for low-altitude targets in maritime environments is presented, focusing on the challenges posed by sea clutter and multipath scattering. The performance of the radar detection methods under sea clutter, multipath, and combined conditions is categorized and summarized, and future research directions are outlined to enhance radar detection performance for low–altitude targets in maritime environments.

Key words: radar, sea clutter, multipath scattering, detection, low altitude target

Yong YANG, Boyu YANG. Overview of radar detection methods for low altitude targets in marine environments[J]. Journal of Systems Engineering and Electronics, 2024, 35(1): 1-13.

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Signal domain	Signal feature
Time domain	Amplitude distribution, Relative mean amplitude [56], Information entropy [57], Hurst index [57]
Frequency domain	Relative Doppler peak height [56], Relative Doppler entropy [56], Spectral peak-to-mean ratio [57], Frequency domain Hurst index [58], Relative Doppler coefficient of variation [59]
Polarization domain	Relative volume scattering power [60], Relative dihedral scattering power scattering mechanism [60], Relative surface scattering power [60], Polarization entropy [61], Polarization anisotropy [61]
Transform domain	Fractal features [62−66], Chaotic features [67], Fractional order Fourier transform features [68−71]
Time frequency domain	Micro-Doppler [72,73], Time frequency accumulation [74], Number of connected regions in time frequency biplot [74], Maximum connected region size [74]

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