Low-complexity frequency estimator for DVB-S2 and burst transmissions at low SNR

Awoseyila, AB, Kasparis, C and Evans, BG (2007) Low-complexity frequency estimator for DVB-S2 and burst transmissions at low SNR 25th AIAA International Communications Satellite Systems Conference.

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Abstract

A simple method for frequency estimation of a PSK-modulated carrier in complex additive white Gaussian noise is proposed. Although this feedforward pilot-aided technique is sub-optimal in terms of the Cramer-Rao bound (CRB) for one pilot field, its performance greatly improves (in comparison to some established methods) when used over consecutive pilot fields. At low signal-to-noise ratios (SNR) where there is an inherent use of averaging over consecutive pilot fields to achieve the required estimation accuracy, this method achieves a similar speed and accuracy to Luise and Reggiannini (L&R)'s method for fine frequency recovery but with a significantly lower complexity. It also provides a competitive speed and accuracy for coarse frequency offset estimation without a threshold region as associated with Kay's method. Simulations have been run based on the DVB-S2 standard (with all examined methods benefiting from the averaging over multiple pilot fields) and the results are presented. © 2007 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

Item Type:	Article
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Awoseyila, AB Kasparis, C Evans, BG b.evans@surrey.ac.uk
Date :	1 December 2007
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 13:05
Last Modified :	24 Jan 2020 23:23
URI:	http://epubs.surrey.ac.uk/id/eprint/837867

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