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Practical blind demodulators for high-order QAM signals

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3 Author(s)
Treichler, J. ; Appl. Signal Technol. Inc., Sunnyvale, CA, USA ; Larimore, M. ; Harp, J.C.

This paper examines the problem of demodulating time dispersed digitally modulated signals with particular emphasis on two aspects: the all-digital implementation of such demodulators and the use of “blind” algorithms for initializing the demodulator in the absence of explicit training by the transmitter. The factors impacting the architecture of blind demodulators are discussed, followed by a description of several practical implementations

Published in:

Proceedings of the IEEE  (Volume:86 ,  Issue: 10 )