In this paper we derive a fast blind coarse frequency offset
estimator for OFDM systems in selective frequency channels.
The estimator takes advantage of the strong structure
of the OFDM signal. In packet oriented systems, using the
method of Schmild and Cox for timing and fine frequency
offset estimation, it is possible to ...»»»»
In this paper we derive a fast blind coarse frequency offset
estimator for OFDM systems in selective frequency channels.
The estimator takes advantage of the strong structure
of the OFDM signal. In packet oriented systems, using the
method of Schmild and Cox for timing and fine frequency
offset estimation, it is possible to obtain very accurate synchronization
using only one known OFDM symbol transmitted
at the beginning of the burst. In systems using a
continuous stream of data this estimator can solve the ambiguity
of multiples of the subcarrier spacing that produces
a fine estimator based on cyclic extensions.^^^^
Tipo de documento:
Conferencia
Derechos:
(c) IEEE
Tots els drets reservats
Citación Bibliográfica:
Marti i Puig, P.; Alvarez, J.S.; , "Coarse frequency estimation in OFDM packet oriented systems," Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on , vol.4, no., pp.2337-2340 vol.4, 2001