Title :
Carrier frequency synchronization based on pulse-pair method for 8-VSB DTV systems
Author :
Kim, Hyunju ; Hong, Eonpyo ; Min, Seungwook ; Har, Dongsoo
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju
fDate :
March 30 2009-April 1 2009
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 plusmn250 kHz and the acquisition time averaged 3.8 ms in fading channels.
Keywords :
digital television; fading channels; filtering theory; stochastic processes; synchronisation; 8-VSB DTV systems; carrier frequency synchronization; fading channels; frequency offset estimation; pilot extraction filters; pulse-pair method; stochastic characteristics; vestigial sideband digital TV systems; Autocorrelation; Data mining; Demodulation; Digital TV; Fading; Filters; Frequency estimation; Frequency synchronization; Intersymbol interference; Transmitters;
Conference_Titel :
Sarnoff Symposium, 2009. SARNOFF '09. IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-3381-0
Electronic_ISBN :
978-1-4244-3382-7
DOI :
10.1109/SARNOF.2009.4850297
