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In this paper, a symbol-by-symbol MAP (SBS-MAP) detection of differential frequency hopping (DFH) signals over Rayleigh flat fading channels is proposed. Because the frequency sequence of DFH signals can be interpreted as a Markov chain, the algorithm is based on a trellis diagram used to describe the state transition of a Markov source. The SBS-MAP can produce the a posteriori probability for each...
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