Second-order cyclostationary approach to NDA ML square timing estimation with frequency uncertainty

Author

López-Salcedo, José A. ; Vazquez, Gregori

Author_Institution

Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

4

fYear

2003

fDate

6-10 April 2003

Abstract

This paper addresses the problem of non-data-aided (NDA) symbol timing error estimation in presence of unknown deterministic carrier frequency errors. A general framework for the stochastic low-SNR ML estimation is derived considering a prior distribution for the carrier frequency error, and exploiting the cyclostationary properties of linear modulations. Finally, the well-known Oerder and Meyr (square timing) method is shown to become a particular case of this general solution.

Keywords

frequency estimation; maximum likelihood estimation; mobile radio; modulation; stochastic processes; synchronisation; NDA symbol timing error; Oerder and Meyr method; SNR; frequency uncertainty; linear modulations; nondata-aided symbol timing error; second-order cyclostationarity; square timing estimation; stochastic ML estimation; unknown deterministic carrier frequency errors; Autocorrelation; Chirp modulation; Error analysis; Frequency estimation; Maximum likelihood estimation; Pulse modulation; Statistics; Stochastic processes; Timing; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1202707

Filename

1202707