公开(公告)号：US20030012303A1

公开(公告)日：2003-01-16

申请号：US10159773

申请日：2002-05-31

Applicant: STMicroelectronics S.r.I.

Inventor： Angelo Dati ,  Cecilia Tonci ,  Paolo Gaducci

IPC: H04L027/22 ,  H04L027/14 ,  H04L027/06

CPC classification number: G11B20/10009

Abstract: A method is provided for optimizing a PRML (Partial Response Maximum Likelihood) receiving channel for mass memory data receiving systems comprising an input receiving channel, a receiver placed downstream of the channel, a detector connected in cascade to the receiver, and a summing node being input both the receiver output through a delay line, and the output from the detector through an impulsive filter. The method includes performing an indirect estimate of the noise strength by filtering out the error sequence, i.e. the output signal from the summing node, through a filter, and selecting either the output from the summing node or the output from the filter to obtain an optimization parameter for feedback to the receiving system.

Abstract translation: 提供一种用于优化用于大容量存储器数据接收系统的PRML（部分响应最大似然）接收通道的方法，所述接收通道包括输入接收通道，放置在通道下游的接收器，级联连接到接收器的检测器， 通过延迟线输入接收器输出，并通过脉冲滤波器输入来自检测器的输出。 该方法包括通过滤除误差序列，即来自求和节点的输出信号，通过滤波器，以及选择来自求和节点的输出或来自滤波器的输出来获得最优化来执行噪声强度的间接估计 用于反馈给接收系统的参数。