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The Method of high speed Frequency Synchronization Using Spectrum correlation in ATSC terrestrial DTV System  

Lee Joo-Hyung (인하대학교 정보통신 대학원 무선전송 연구실)
Song Hyun-Keun (인하대학교 정보통신 대학원 무선전송 연구실)
Nam Wan-Ju (인하대학교 정보통신 대학원 무선전송 연구실)
Kim Jae-Moung (인하대학교 정보통신 대학원 무선전송 연구실)
Kim Seung-Won (한국전자통신연구원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.9A, 2005 , pp. 858-866 More about this Journal
Abstract
This paper proposes the method of frequency synchronization using the spectrum correlation in ATSC terrestrial DTV system. If the spectrum around pilot is severely distorted by multipath or mobile reception environment, the conventional algorithm using the pilot signal makes the estimation error of the frequency offset. Because the proposed algorithm acquires frequency synchronization using the correlation between the received specalm and the standard spectrum without the use of pilot, the proposed method can acquire frequency synchronization faster and more accurate than conventional algorithm. And this paper proposes new method for ATSC frequency synchronization without the use of pilot.
Keywords
ATSC; carrier recovery; FPLL; correlation; synchronization;
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