Youngyoon Lee, Seungsoo Yoo, Dahae Chong, Seokho Yoon, Sun Yong Kim
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A pilot-aided integer frequency offset estimation scheme robust to influence of timing offset for OFDM-based DVB-T systems
A pilot-aided integer frequency offset (IFO) estimation scheme robust to the timing offset is proposed for orthogonal frequency division multiplexing (OFDM)-based digital video broadcasting-terrestrial (DVB-T) systems. The proposed scheme first produces correlation values between each continual pilot (CP) and a predetermined scattered pilot (SP), and then, recorrelates the correlation values in order to reduce the influence of the timing offset. Simulation results show that the proposed IFO estimation scheme is robust to the timing offset and has better estimation performance than the conventional scheme.
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