Patent ID: 6347127
Filing Date: 2002-02-12
Classification: H04L

Abstract:
A method for a multi-symbol matched filter (MSMF) estimation of an evaluation symbol in a received signal having a predictable inter-symbol interference, the method comprising the steps of:selecting a portion of the received signal comprising the evaluation symbol, along with at least one preceding symbol received immediately before the evaluation symbol, and at least one following symbol received immediately after the evaluation symbol; prefixing to the portion of the received signal at least one previously estimated symbol received immediately before the portion, of the received signal thereby producing an evaluation portion; comparing the evaluation portion with a plurality of templates equal in length to the evaluation portion and comprising different combinations of trial symbols and the at least one previously estimated symbol, prefixed to the trial symbols; and estimating the evaluation symbol to be equal to a trial symbol in one of the plurality of templates having a highest correlation with the evaluation portion, the trial symbol having a position matching that of the evaluation symbol in the evaluation portion.