Pilot-Aided Iterative Frequency Offset Estimation for Digital Video Broadcasting Systems

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