A conjugate-cyclic-autocorrelation projection-based algorithm for signal parameter estimation

Authors:
Valentina De Angelis;Luciano Izzo;Antonio Napolitano;Mario Tanda
Affiliations:
Dipartimento di Ingegneria Elettronica e delle Telecomunicazioni, Università di Napoli "Federico II," Napoli, Italy;Dipartimento di Ingegneria Elettronica e delle Telecomunicazioni, Università di Napoli "Federico II," Napoli, Italy;Dipartimento per le Tecnologie, Universita di Napoli "Parthenope," Napoli, Italy;Dipartimento di Ingegneria Elettronica e delle Telecomunicazioni, Università di Napoli "Federico II," Napoli, Italy
Venue:
EURASIP Journal on Wireless Communications and Networking
Year:
2006

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Abstract

A new algorithm to estimate amplitude, delay, phase, and frequency offset of a received signal is presented. The frequency-offset estimation is performed by maximizing, with respect to the conjugate cycle frequency, the projection of the measured conjugate-cyclic-autocorrelation function of the received signal over the true conjugate second-order cyclic autocorrelation. It is shown that this estimator is mean-square consistent, for moderate values of the data-record length, outperforms a previously proposed frequency-offset estimator, and leads to mean-square consistent estimators of the remaining parameters.