In this letter, 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 non-recursive phase estimators in the presence of a strong phase jitter.
A per-survivor phase-estimation algorithm for detection of PSK signals / Chiavaccini, Eugenio; Vitetta, Giorgio Matteo. - In: IEEE TRANSACTIONS ON COMMUNICATIONS. - ISSN 0090-6778. - STAMPA. - 49:12(2001), pp. 2059-2061. [10.1109/26.974249]
A per-survivor phase-estimation algorithm for detection of PSK signals
CHIAVACCINI, Eugenio;VITETTA, Giorgio Matteo
2001
Abstract
In this letter, 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 non-recursive phase estimators in the presence of a strong phase jitter.
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