Patent ID: 6438161
Filing Date: 2002-08-20
Classification: H04L

Abstract:
A method of designing an impulse response shortening equaliser for use in a channel of a transmission system having an impulse response, the equaliser having a target response suited to a particular subclass of communication channel to shorten the duration of the impulse response of the overall transmission system, a class of channels being divided into a number of subclasses, each subclass having a fixed set of delay (&Dgr;) and desired response (d(n)) parameters selected to achieve the target response of the equaliser for that particular subclass of channel, the method comprising the steps of:recognizing the subclass of the channel; and identifying the fixed set of parameters for the equaliser to achieve the target response by reference to a look-up table based on the subclass of the channel, the look-up table providing a delay and desired response parameter for each subclass of channel.