CONSTELLATION LOCATION DEPENDENT STEP SIZES FOR EQUALIZER ERROR SIGNALS

摘要

An ATSC (Advanced Television Systems Committee-Digital Television) receiver comprises an equalizer (220) and a controller (230). The equalizer (220) provides a sequence of received signal points from a constellation space, the constellation space having an inner region and one, or more, outer regions. The controller (230) provides a coefficient gain value for use in adjusting tap coefficient values of the equalizer (220), wherein the coefficient gain value is as a function of which region of the constellation space the received signal points fall within.