EQUALIZER OF SINGLE CARRIER RECEIVER FOR IMPROVING EQUALIZATION SPEED AND EQUALIZATION METHOD THEREOF

摘要

The present invention provides an equalizer capable of improving anequalization speed.The equalizer comprises a channel estimation unit estimating channelestimation values usinga received signal inputted thereto and a generated field synchronizing signal,a filter filtering apre-ghost and post-ghost of the received signal using the channel estimationvalues, wherein thefilter initializes coefficients of filters thereof and updates thecoefficients gradually, therebyfiltering the pre and post-ghosts and an error calculation unit calculating anequalization errorusing an output signal from the filter unit. The filter updates thecoefficients of the filtersaccording to the equalization error and filters the pre and post-ghoststhrough these updatedfilters. The filters of the equalizer are initialized by estimating a delayprofile of a received signal,thereby improving a convergence speed of equalization of an equalizer.