Pilot-Aided Frequency Offset Estimation for Digital Video Broadcasting Systems

Kyung-Taek LEE  Jong-Soo SEO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B   No.11   pp.3327-3329
Publication Date: 2007/11/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.11.3327
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Broadcast Systems
Keyword: 
OFDM,  digital video broadcasting,  ML estimator,  integer frequency offset,  

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Summary: 
This letter introduces a simple way of estimating the integer frequency offset (IFO) of OFDM-based digital video broadcasting (DVB) systems. By modifying the conventional maximum likelihood (ML) estimator to include the multi-stage estimation strategy, the IFO estimator is derived. Simulations indicate that the proposed IFO estimator works robustly when compared to ML estimator.