Carrier frequency synchronization based on pulse-pair method for 8-VSB DTV systems

Authors:
Hyunju Kim;Eonpyo Hong;Seungwook Min;Dongsoo Har
Affiliations:
Department of Information and Communications, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea;Department of Information and Communications, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea;Division of Computer Science, Sangmyung University, Seoul, Republic of Korea;Department of Information and Communications, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
Venue:
SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
Year:
2009

Citing 4
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Abstract

Vestigial sideband (VSB) digital TV (DTV) systems do not show good performance in indoor environment or in motion, because they have difficulties in carrier recovery. In this paper, a pulse-pair method is proposed as a new carrier frequency recovery scheme for 8-VSB DTV systems. For estimating the desired frequency offset, the pulse-pair method uses the stochastic characteristics of the autocorrelation of the received 8-VSB pilot signal extracted by pilot extraction filters. Simulation results of the proposed scheme demonstrate that its acquisition range is ±250 kHz and the acquisition time averaged 3.8 ms in fading channels.