Invention Application
US20050041760A1 Computation of decision feedback equalizer coefficients with constrained feedback tap energy 有权
具有约束反馈抽头能量的判决反馈均衡器系数的计算

  • Patent Title: Computation of decision feedback equalizer coefficients with constrained feedback tap energy
  • Patent Title (中): 具有约束反馈抽头能量的判决反馈均衡器系数的计算
  • Application No.: US10956172
    Application Date: 2004-10-01
  • Publication No.: US20050041760A1
    Publication Date: 2005-02-24
  • Inventor: Nabil Yousef
  • Applicant: Nabil Yousef
  • Main IPC: H04L1/06
  • IPC: H04L1/06 H04L25/03 H03K5/159 H04B1/10
Computation of decision feedback equalizer coefficients with constrained feedback tap energy
Abstract:
A Decision Feedback Equalizer (DFE) system includes a DFE and a DFE coefficients processor. The DFE receives an uncompensated signal and operates upon the uncompensated input using DFE coefficients to produce an equalized output. The DFE coefficients processor formulates a channel estimate as a convolution matrix H. The DFE coefficients processor determines a Feed Back Equalizer (FBE) energy constraint based upon the channel estimate. The DFE coefficients processor relates the convolution matrix H to the DFE coefficients in a matrix format equation, the matrix format equation based upon the structure of the DFE, the convolution matrix, an expected output of the DFE, and the FBE energy constraint. The DFE coefficients processor formulates a recursive least squares solution to the matrix format equation and computes the recursive least squares solution to the matrix format equation to yield the DFE coefficients.
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