Computationally Efficient Joint Frequency Synchronization for OFDM-Based DVB-T

Young-Hwan YOU  Sung-Jin KANG  Hyoung-Kyu SONG  

IEICE TRANSACTIONS on Communications   Vol.E92-B    No.1    pp.354-356
Publication Date: 2009/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.354
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Broadcast Systems
OFDM,  DVB,  frequency synchronization,  

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This letter proposes a computationally efficient way of jointly estimating the residual frequency offset (RFO) and sampling frequency offset (SFO) by using a continual pilot (CP) defined in OFDM-based DVB-T system. In order to devise an unbiased joint frequency estimator in the current DVB-T system, a CP subset is selected to offset the effects of RFO and SFO simultaneously.