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Open access Oct 2026

A dual-input coarse-to-fine residual correction network for underwater acoustic OFDM channel estimation in doubly selective channels

In doubly selective underwater acoustic channels, time-varying multipath and Doppler spread destroy the orthogonality among orthogonal frequency division multiplexing (OFDM) subcarriers. As a result, the least squares (LS) estimates at pilot positions are affected by noise, inter-carrier interference (ICI), and spectra...

Jun Huang, Tie-Liang Guo, Zi-Yang Guo · 0 citations

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