公开(公告)号：US08767812B2

公开(公告)日：2014-07-01

申请号：US13081962

申请日：2011-04-07

Applicant: Lin Lin Li ,  Amitkumar Mahadevan

Inventor： Lin Lin Li ,  Amitkumar Mahadevan

IPC: H03H7/30

CPC classification number: H04L25/03044 ,  H04L25/022 ,  H04L2025/03681

Abstract: Various systems and methods are described for performing fractionally spaced time domain equalization (TEQ). One embodiment is a method implemented in a communication system for training a fractionally spaced time domain equalizer (TEQ). The method comprises performing an initialization phase, averaging a received signal in the system to reduce effects of noise in a channel, determining a channel estimate, and aligning an ideal reference signal with the received signal. The method further comprises updating a target response filter according to a non-integer multiple of a base sampling rate, determining an adaptation error based on useful information both inside and outside a Nyquist band of the TEQ, and updating the TEQ according to the adaptation error.

Abstract translation: 描述了用于执行分数间隔时域均衡（TEQ）的各种系统和方法。 一个实施例是在用于训练分数间隔的时域均衡器（TEQ）的通信系统中实现的方法。 该方法包括执行初始化阶段，对系统中的接收信号进行平均以减少信道中的噪声的影响，确定信道估计，以及使理想的参考信号与接收的信号对准。 该方法还包括根据基本采样率的非整数倍来更新目标响应滤波器，基于TEQ的奈奎斯特频带内部和外部的有用信息确定适配误差，以及根据自适应误差更新TEQ 。

公开(公告)号：US20110255586A1

公开(公告)日：2011-10-20

申请号：US13081962

申请日：2011-04-07

Applicant: Lin Lin Li ,  Amitkumar Mahadevan

Inventor： Lin Lin Li ,  Amitkumar Mahadevan

IPC: H04L27/01

CPC classification number: H04L25/03044 ,  H04L25/022 ,  H04L2025/03681

Abstract: Various systems and methods are described for performing fractionally spaced time domain equalization (TEQ). One embodiment is a method implemented in a communication system for training a fractionally spaced time domain equalizer (TEQ). The method comprises performing an initialization phase, averaging a received signal in the system to reduce effects of noise in a channel, determining a channel estimate, and aligning an ideal reference signal with the received signal. The method further comprises updating a target response filter according to a non-integer multiple of a base sampling rate, determining an adaptation error based on useful information both inside and outside a Nyquist band of the TEQ, and updating the TEQ according to the adaptation error.

Abstract translation: 描述了用于执行分数间隔时域均衡（TEQ）的各种系统和方法。 一个实施例是在用于训练分数间隔的时域均衡器（TEQ）的通信系统中实现的方法。 该方法包括执行初始化阶段，对系统中的接收信号进行平均以减少信道中的噪声的影响，确定信道估计，以及使理想的参考信号与接收的信号对准。 该方法还包括根据基本采样率的非整数倍来更新目标响应滤波器，基于TEQ的奈奎斯特频带内部和外部的有用信息确定适配误差，以及根据自适应误差更新TEQ 。