Patent ID: 6961372
Filing Date: 2005-11-01
Classification: H04L

Abstract:
1. A non-iterative method of forming a time-domain equalizer for a receiver device associated with a channel, the method comprising the steps of: forming a discrete-time representation of channel response H(z), followed by a discrete-time representation of time-domain equalizer response A(z); choosing a signal which represents an allowed residual output B(z) of the time-domain equalizer; arranging A(z), B(z), and H(z) with a summation device to form an error signal of E(z)=H(z)A(z)−B(z)=0; inputting a unit one signal to the channel response and deriving the relationships B(z)=H(z)A(z), and H(z)=B(z)/A(z); deriving an expression for the error signal in terms of coefficients corresponding to A(z), B(z) and H(z); minimizing the error signal; deriving the coefficients corresponding to H(z) from receiver training estimates; and solving for the coefficients corresponding to A(z) and B(z), wherein B(z) has a degree less than a cyclic prefix C, and the coefficients corresponding to A(z) provide the time-domain equalizer.