상세정보
등록 비동기 직교주파수 분할다중 시스템에서 순환확장부호를 이용한 가변적인 심벌 타이밍의 보상 방법 및 장치
- 출원번호
- 14097440 (2013.12.05)
- 공개번호
- 20140286468 (2014.09.25)
- 등록번호
- 9154293 (2015.10.06)
- 출원국
- 미국
- 협약과제
- 12PR2200, 차세대 디지털 케이블 전송기술 개발, 최동준
- 초록
- Disclosed are a method and apparatus for estimating symbol timing in a non-synchronized OFDM system. The present invention includes synchronizing a frame of a received signal, estimating the symbol timing of each symbol of the frame based on the synchronization, compensating for the symbol timing using a phase difference attributable to a Symbol Timing Offset (STO), variably changing within a Cyclic Prefix (CP) interval due to the frequency offset of a sampling clock and thermal noise, and performing channel equalization using a preamble based on output including corrected phase rotation.
- KSP 제안 키워드
- Cyclic prefix(CP), OFDM systems, Phase Difference, Sampling clock, Symbol Timing, Thermal noise, channel equalization, frame based, frequency offset, phase rotation, symbol timing offset, timing offset