公开(公告)号：US06963604B2

公开(公告)日：2005-11-08

申请号：US10814448

申请日：2004-03-31

申请人： Deniz Erdogmus ,  Marcelino Lazaro ,  Jose Carlos Principe ,  Ignacio Santamaria

发明人： Deniz Erdogmus ,  Marcelino Lazaro ,  Jose Carlos Principe ,  Ignacio Santamaria

IPC分类号： H04L25/03 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/0305 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/0363 ,  H04L2025/037 ,  H04L2025/03732

摘要： An iterative method of equalizing an input signal received over a digital communication channel can include (a) using a kernel density estimate where different values of a kernel size are indicative of either a blind or a decision-directed equalization mode, (b) processing a received signal using a blind equalization mode, and (c) evaluating, on a block or sample basis, an error measure based on a distance among a distribution of an equalizer output and a constellation. The method also can include (d) updating the kernel size based upon the error measure thereby facilitating automatic switching between the blind and decision-directed equalization modes, where the kernel size is initially set to a value indicative of the blind equalization mode. The method additionally can include (e) selectively applying blind equalization or decision-directed equalization to the input signal according to the updated kernel size for subsequent iterations of steps (c)-(e).

摘要翻译： 对通过数字通信信道接收的输入信号进行均衡的迭代方法可以包括：（a）使用核密度估计，其中不同的核大小值指示盲目或决策导向的均衡模式，（b）处理 使用盲均衡模式接收信号，以及（c）基于块或采样基于均衡器输出和星座分布之间的距离的误差测量。 该方法还可以包括（d）基于误差测量来更新内核大小，从而促进盲目和决策导向的均衡模式之间的自动切换，其中核心大小被初始设置为指示盲均衡模式的值。 该方法还可以包括（e）根据更新的核大小，对步骤（c） - （e）的后续迭代，对输入信号选择性地应用盲均衡或决策导向均衡。