Patent ID: 7577194

Claim:
An equalizer which receives a digitally modulated single carrier signal and calculates an equalization weight using a transmission channel response vector that is arranged with transmission channel estimations at the detection path timing and at the neighbor path timings thereof, comprising: path-timing detector for detecting the timings of L paths (L is an integer equal to or greater than 1) based on a pilot signal time-multiplexed on a received signal that has been sampled at oversampled number N OS ; pilot MPI replica generator for generating a pilot multipath interference (MPI) replica signal for each path, based on the transmission channel estimation of the detection path; pilot MPI replica remover for generating a pilot received signal with MPI removed by subtracting each of pilot MPI replica signals for other than a desired path, from the pilot received signal; transmission channel response vector generator for generating a transmission channel response vector, based on the transmission channel estimations for the detection path and neighbor paths, using the pilot received signal with MPI removed; weight calculator for calculating an equalization weight using the transmission channel response vector; and equalization filter for performing equalization of the received signal with the equalization weight.