Method and circuit for updating a tap coefficient of a channel equalizer
    1.
    发明授权
    Method and circuit for updating a tap coefficient of a channel equalizer 有权
    用于更新信道均衡器的抽头系数的方法和电路

    公开(公告)号:US07336704B2

    公开(公告)日:2008-02-26

    申请号:US10758027

    申请日:2004-01-16

    IPC分类号: H03K5/159

    摘要: Provided are a method of updating a tap coefficient of a channel equalizer while reducing the number of calculations and the divergence, and a circuit arranged and configured to execute the method. The method includes evaluating whether or not an error of the channel equalizer converges within a range of a threshold of visibility and determining the status of a control signal to select whether the tap coefficient of the channel equalizer will be updated using a least mean square (LMS) algorithm or a Kalman algorithm, wherein the LMS algorithm is the default error correction means and the Kalman algorithm is utilized when the control signal indicates the presence of a training signal.

    摘要翻译: 提供了一种在减少计算次数和发散度的同时更新信道均衡器的抽头系数的方法,以及布置和配置为执行该方法的电路。 该方法包括评估信道均衡器的误差是否在可见度阈值的范围内收敛,并且确定控制信号的状态,以选择使用最小均方(LMS)来更新信道均衡器的抽头系数 )算法或卡尔曼算法,其中LMS算法是默认误差校正装置,并且当控制信号指示训练信号的存在时,利用卡尔曼算法。