发明授权
- 专利标题: Sample clock frequency offset estimation in DRM
- 专利标题(中): DRM中采样时钟频率偏移估计
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申请号: US12079937申请日: 2008-03-28
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公开(公告)号: US08194761B2公开(公告)日: 2012-06-05
- 发明人: Yan Liu
- 申请人: Yan Liu
- 申请人地址: CN Shenzhen
- 专利权人: Shenzhen STS Microelectronics Co.
- 当前专利权人: Shenzhen STS Microelectronics Co.
- 当前专利权人地址: CN Shenzhen
- 优先权: CN200710089038 20070329
- 主分类号: H04L27/28
- IPC分类号: H04L27/28
摘要:
A system and method for estimating sample clock frequency offset (εs) in a digital radio mondiale (DRM) system such as, for example, DRM receivers. The system and method includes using a relationship given by the following equation: ɛ s = linearfit ( angle ( P G m P G _ tr m P G m - cycle P G _ tr m - cycle ) , l ) × N 2 π × cycle × ( N + L ) wherein the PGm is the gain pilot received in the mth symbol and PG—trm is the gain pilot transmitted in the mth symbol, the PGm-cycle is the gain pilot received in (m-cycle)th symbol, the PG—trm-cycle is the second gain pilot transmitted in (m-cycle)th symbol, the l is the index of the sub-carrier associated with the gain pilot, the N is a factor of a sample point number of a useful symbol, the L is a sample point number of a guard interval, and the cycle is the interval of two symbols which are inserted gain pilots at the same sub-carriers (l).
公开/授权文献
- US20080279313A1 Sample clock frequency offset estimation in DRM 公开/授权日:2008-11-13
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