Patent ID: 6879624

Claim:
An adaptive antenna receiver comprising: a beam forming unit that uses a plurality of antennas to forms beams having fixed directivity; a plurality of despreading units that separately despread a beam signal corresponding to the beams having fixed directivity; a path detecting unit that detects multipath waves on a transmission line based on the signals obtained by despreding, and outputs path position information as a detection result; a transmission line estimating unit that estimates a transmission line for transmitting an adaptive beam combined signal for each path, based on the path position information; a plurality of complex multiplication units each of which separately complex multiplies the despread signals by the transmission line estimation result for each path; an adaptive beam forming unit that generates a weight for each path by operating an adaptive algorithm for each path, using a plurality of complex multiplication results and data judgment results in each path, and forms an adaptive beam combined signal for each path, using the weight and the despread signals; a phase matching unit that performs phase matching corresponding to the transmission line estimated by the transmission line estimating unit, using the adaptive beam signal for each path; a path combining unit that combines the adaptive beam signals after phase matching for all paths; and a data judging unit that judges the data included in the adaptive beam signals combined.