Differentially Coherent Multichannel Detection of Acoustic OFDM Signals
Abstract
In this paper, we propose a class of methods for compensating for the Doppler distortions of the underwater acoustic channel for differentially coherent detection of orthogonal frequency-division multiplexing (OFDM) signals. These methods are based on multiple fast Fourier transform (FFT) demodulation, and are implemented as partial (P), shaped (S), fractional (F), and Taylor (T) series expansion FFT demodulation. They replace the conventional...
Paper Details
Title
Differentially Coherent Multichannel Detection of Acoustic OFDM Signals
Published Date
Apr 1, 2015
Volume
40
Issue
2
Pages
251 - 268
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