发明申请
US20050078772A1 Apparatus using a lengthened equalization target filter with a matched filter metric in a viterbi detector
失效
在维特比检测器中使用具有匹配滤波器度量的延长均衡目标滤波器的装置
- 专利标题： Apparatus using a lengthened equalization target filter with a matched filter metric in a viterbi detector
- 专利标题（中）： 在维特比检测器中使用具有匹配滤波器度量的延长均衡目标滤波器的装置
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申请号： US10683645申请日： 2003-10-10
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公开(公告)号： US20050078772A1公开(公告)日： 2005-04-14
- 发明人: Roy Cideciyan , Ajay Dholakia , Evangelos Eleftheriou , Richard Galbraith , Thomas Mittelholzer , Travis Oenning
- 申请人： Roy Cideciyan , Ajay Dholakia , Evangelos Eleftheriou , Richard Galbraith , Thomas Mittelholzer , Travis Oenning
- 专利权人： Hitachi Global Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Technologies Netherlands B.V.
- 主分类号： G11B20/10
- IPC分类号： G11B20/10 ; H04L27/06
摘要：
An apparatus that uses a lengthened equalization target filter with a matched filter metric in a Viterbi detector is disclosed. The equalization target includes a base partial response component, i.e., (1−D2), a fractional coefficient polynomial component to whiten the noise, i.e., (1+p1D+p2D2), and a time-reversed replica of the noise-whitening component. Thus, the time-reversed replica of the noise-whitening component comes from what was formerly a matched filter component.
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