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Decision Feedback Demodulation-based Adaptive Equalizers for DDPSK Systems  

장동운 (Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.6B, 2002 , pp. 625-637 More about this Journal
Abstract
This study extends the modified linear feedback equalizer (MLFE), normally used for differentially coherent DPSK systems, to the equalization of double differentially coherent PSK (DDPSK) signals. By feeding back into the feedback part after modifying the equalizer output using decision feedback-based demodulation, the proposed equalizer can operate like an equalizer with a decision feedback structure. Simulation results showthat performances of the decision feedback demodulation-based feedback equalizer (DFD-FE) approach those of the DFE/coherent.
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