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- W1980243567 abstract "본 논문에서는 다중 경로 페이딩 채널을 고려한 환경에서 디지털 M/W전송 시스템의 동기에 관한 모의 시뮬레이터를 구성하여 주파수 동기를 수행하였고, 송신단과 수신단의 주파수 허용 편차(오실레이터 간 오차 범위)로 발생되는 주파수 옵셋에 보상 알고리즘을 적용하여 신호 성좌도(constellation)의 성능 개선 정도를 평가하였다. 성능 분석 결과, 송 수신단의 주파수 허용 편차가 큰 상태에서는 주파수 옵셋을 보상해도 주파수 허용 편차가 이미 크기 때문에 잔류 주파수의 영향을 상대적으로 많이 받게 됨을 알 수 있었다. 결과적으로 송수신단의 주파수 허용 편차에 따라 잔류 주파수 옵셋이 시스템 성능에 큰 영향을 미치게 됨을 알 수 있었다. 본 결과물은 향후 방송중계용 시스템의 대역 이전 시 필요한 주파수 동기 기준으로 활용 가능할 것이다. In this paper, we investigated frequency synchronization through computer simulation of digital M/W transmission system in multipath fading channel. we suggested frequency offset correction algorithm against frequency offset between transmitter and receiver, then evaluated the degree of constellation performance enhancement. From the performance evaluation, in case of large frequency offset, although adopting frequency offset correction scheme, residual frequency offset degraded system performance. As a result, according to frequency offset value between transmitter and receiver residual frequency offset affects system performance significantly. The results of this paper should be utilized for frequency synchronization criterion when frequency band of broadcasting system is rearranged." @default.
- W1980243567 created "2016-06-24" @default.
- W1980243567 creator A5030192804 @default.
- W1980243567 date "2013-10-31" @default.
- W1980243567 modified "2023-10-05" @default.
- W1980243567 title "Performance Analysis of Digital M/W Transmission System adopting Frequency Offset Compensation Algorithm in Multipath Fading Channel" @default.
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- W1980243567 doi "https://doi.org/10.9708/jksci.2013.18.10.063" @default.
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