公开(公告)号：US20160234043A1

公开(公告)日：2016-08-11

申请号：US14619952

申请日：2015-02-11

Applicant: Applied Micro Circuits Corporation

Inventor： Yehuda AZENKOT ,  Guy Jacque FORTIER

IPC: H04L25/03 ,  H04L7/00

CPC classification number: H04L25/03019 ,  H04L7/0025 ,  H04L7/0062 ,  H04L2025/03592

Abstract: Systems and methods of mitigating precursor ISIs for communication channels having time-variant precursor channel responses using digital circuit designs. A phase adaptation circuit is utilized in a receiver and configured to generate a phase control signal responsive to an input signal and based on the current precursor channel response. The phase control signal controls the phase shift of a recovered clock to a position where the precursor ISI at h(−1) is minimized. The phase control signal corresponds to a “feed-forward equalization (FFE) first tap weight” obtained via a digital least-mean-square (LMS) process.

Abstract translation: 用于使用数字电路设计具有时变先驱信道响应的通信信道的前体ISI的系统和方法。 在接收机中使用相位自适应电路，并且被配置为响应于输入信号并且基于当前前置信道响应产生相位控制信号。 相位控制信号将恢复的时钟的相移控制在h（-1）处的前体ISI最小化的位置。 相位控制信号对应于通过数字最小均方（LMS）处理获得的“前馈均衡（FFE）第一抽头权重”。