2024
DOI: 10.3390/rs16112005
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A Method for Underwater Acoustic Target Recognition Based on the Delay-Doppler Joint Feature

Libin Du,
Zhengkai Wang,
Zhichao Lv
et al.

Abstract: With the aim of solving the problem of identifying complex underwater acoustic targets using a single signal feature in the Time–Frequency (TF) feature, this paper designs a method that recognizes the underwater targets based on the Delay-Doppler joint feature. First, this method uses symplectic finite Fourier transform (SFFT) to extract the Delay-Doppler features of underwater acoustic signals, analyzes the Time–Frequency features at the same time, and combines the Delay-Doppler (DD) feature and Time–Frequenc… Show more

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