基本信息:
- 专利标题： 디지털 방송 수신기의 등화 장치
- 专利标题（英）：Channel equalizer in digital broadcasting receiver
- 专利标题（中）：数字广播接收机均衡器
- 申请号：KR1020050023170 申请日：2005-03-21
- 公开(公告)号：KR1020060101644A 公开(公告)日：2006-09-26
- 发明人： 서용학 , 김병길 , 최인환
- 申请人： 엘지전자 주식회사
- 申请人地址： ***, Yeoui-daero, Yeongdeungpo-gu, Seoul, *****, Republic of Korea
- 专利权人： 엘지전자 주식회사
- 当前专利权人： 엘지전자 주식회사
- 当前专利权人地址： ***, Yeoui-daero, Yeongdeungpo-gu, Seoul, *****, Republic of Korea
- 代理人： 김용인; 심창섭
- 主分类号： H04N7/015
- IPC分类号： H04N7/015
동적 채널, 정적 채널, 파워 정규화 파라미터, 주파수 영역 등화
The present invention relates to a lighting system for improving an estimate of the impulse response of the channel in the digital transmission and reception system determines whether the static or dynamic channel and channel equalization by the equalization control parameters based on this performance. In particular, the present invention is for each pilot synchronization signal received periodically estimating the impulse response of the channel, and receives the previous impulse response and the current impulse response of the estimated channel estimation by measuring the degree of change of the channel channel dynamic channel that the static channel and it determines whether. And by updating the filter coefficients of the frequency domain equalizer to control the power normalization parameters (power normalization parameter) of the frequency domain equalizer according to the characteristics of the channel is determined, it is possible to improve the performance of channel equalization. Dynamic channel, the static channel, power normalization parameters, the frequency domain equalization
公开/授权文献:
- KR100698265B1 디지털 방송 수신기의 등화 장치 公开/授权日：2007-03-22