发明授权
US07248630B2 Adaptive equalizer operating at a sampling rate asynchronous to the data rate
失效
自适应均衡器以与数据速率异步的采样速率工作
- 专利标题： Adaptive equalizer operating at a sampling rate asynchronous to the data rate
- 专利标题（中）： 自适应均衡器以与数据速率异步的采样速率工作
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申请号： US10495941申请日： 2002-10-30
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公开(公告)号： US07248630B2公开(公告)日： 2007-07-24
- 发明人: David Modrie , Rob Otte
- 申请人： David Modrie , Rob Otte
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips Electronics N. V.
- 当前专利权人： Koninklijke Philips Electronics N. V.
- 当前专利权人地址： NL Eindhoven
- 优先权： EP01402988 20011121
- 国际申请： PCT/IB02/04607 WO 20021030
- 国际公布： WO03/045024 WO 20030530
- 主分类号： H03H7/30
- IPC分类号： H03H7/30 ; H04L27/06
摘要：
The invention relates to an LMS-based asynchronous receiver for digital transmission and recording systems. The receiver comprises a digital adaptive equalizer (EQ) for receiving a received sequence rn and for delivering an equalized sequence yn. The equalizer (EQ) operates at the sampling rate 1/Ts, asynchronous to the data rate 1/T. An equalizer adaptation method using LMS techniques is described for adapting equalizer taps asynchronously to the data rate via a control loop. A first sampling rate converter (SRC1) performs timing recovery at the data rate 1/T after equalization on the equalized sequence yn. A second sampling rate converter (SRC2) is provided for converting a delayed version of the received sequence rn into an intermediate control sequence ik at the data rate 1/T.
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