상세정보
등록 디씨 오프셋 보상 기능이 있는 직교 주파수 분할 다중 시스템의 자동 이득 조절 장치 및 그 방법과, 그 방법을 포함하는 프로그램이 저장된 기록매체
- 출원번호
- 10687355 (2003.10.15)
- 공개번호
- 20040202102 (2004.10.14)
- 등록번호
- 7302022 (2007.11.27)
- 출원국
- 미국
- 협약과제
- 02MR2200, 초고속패킷 무선전송기술연구, 한기철
- 초록
- Disclosed is an AGC (automatic gain control) device and method of an OFDM system with a DC offset compensation function, and a recording medium storing a program including the method. The AGC device calculates an energy of input signals with DC offsets as the summation of the square of the input signals, and calculates an energy of the DC offsets in the input signals as the summation of the square of the DC offsets. Pure signal energy without DC offsets is produced by subtracting the energy of the DC offsets from the energy of the calculated input signal. The energy and an AGC reference value are then compared, and feedback of a comparison result is performed.
- KSP 제안 키워드
- Automatic Gain Control(AGC), Control device, DC-offset, Frequency division, Frequency division multiplexing, Gain Control, Input signal, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), Recording medium, Reference value, Signal Energy, compensation function, division multiplexing, offset compensation