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A per-survivor phase-estimation algorithm for detection of PSK signals

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2 Author(s)
E. Chiavaccini ; Dept. of Inf. Eng., Modena Univ., Italy ; G. M. Vitetta

An expectation-maximization (EM) technique for maximum a posteriori (MAP) estimation of a random parameter is employed to devise a per-survivor phase-tracking algorithm for phase-shift-keyed signals transmitted over channels with phase jitter. Simulation results show that the proposed algorithm can provide substantial performance gains over recursive and nonrecursive phase estimators in the presence of a strong phase jitter

Published in:

IEEE Transactions on Communications  (Volume:49 ,  Issue: 12 )