发明授权
- 专利标题: Equalizer and equalization method
- 专利标题(中): 均衡器和均衡方法
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申请号: US10011273申请日: 2001-12-11
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公开(公告)号: US07042935B2公开(公告)日: 2006-05-09
- 发明人: Nobuaki Kawahara , Masashi Naito
- 申请人: Nobuaki Kawahara , Masashi Naito
- 申请人地址: JP Tokyo
- 专利权人: Hitachi Kokusai Electric, Inc.
- 当前专利权人: Hitachi Kokusai Electric, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: McGinn IP Law Group, PLLC
- 优先权: JP2001-147574 20010517
- 主分类号: H03H7/30
- IPC分类号: H03H7/30
摘要:
An equalizer and an equalization method capable of suppressing distortion specific to radio unit and reducing both the oversampling number and the amount of calculations without causing characteristic deterioration. The equalizer, which equalizes a received signal with periodically inserted known pilot symbols, includes a synchronization processing section that detects symbol synchronization points using pilot symbols included in the received signal, a plurality of equalization factor calculation sections which use the symbol synchronization points and points shifted in time before and after the symbol synchronization point as symbol synchronization point candidates, and calculate equalization factors for the respective symbol synchronization point candidates, and an optimization/equalization processing section which selects an optimal symbol synchronization point and corresponding optimal equalization factor from among a plurality of symbol synchronization point candidates and corresponding equalization factors, and equalizes the received signal using the optimal equalization factor.
公开/授权文献
- US20020172272A1 Equalizer and equalization method 公开/授权日:2002-11-21
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