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    • 23. 发明授权
    • Channel impulse response estimating decision feedback equalizer
    • 信道脉冲响应估计判决反馈均衡器
    • US08320442B2
    • 2012-11-27
    • US10911282
    • 2004-08-04
    • Bruno AmizicMark FimoffJin KimSreenivasa M. Nerayanuru
    • Bruno AmizicMark FimoffJin KimSreenivasa M. Nerayanuru
    • H03H7/30
    • H04L25/03057H04L2025/03382H04L2025/0349
    • A decision feedback equalizer is operated by making first symbol decisions from an output of the decision feedback equalizer such that the first symbol decisions are characterized by a relatively long processing delay, by making second symbol decisions from the output of the decision feedback equalizer such that the second symbol decisions are characterized by a relatively short processing delay, and by determining tap weights for the decision feedback equalizer based on the first and second symbol decisions. The first symbol decisions may be derived from the output of a long traceback trellis decoder. The second symbol decisions may be derived either from the output of a short traceback trellis decoder or from shorter delay outputs of the long traceback trellis decoder.
    • 通过从所述判决反馈均衡器的输出进行第一符号判定来操作判定反馈均衡器,以便通过从所述判决反馈均衡器的输出进行第二符号判定,使得所述第一符号判定由相对长的处理延迟表征,使得 第二符号决定的特征在于相对短的处理延迟,并且通过基于第一和第二符号决定确定用于判决反馈均衡器的抽头权重。 第一符号决定可以从长跟踪网格解码器的输出中导出。 第二符号决定可以从短跟踪网格解码器的输出或长跟踪网格解码器的较短延迟输出中导出。