Patent ID: 8243834

Claim:
A wireless communication apparatus comprising: a reference signal generating section that generates a reference signal corresponding to a received spatial-multiplex pilot subcarrier signal; a spatial-multiplex pilot subcarrier extracting section that extracts a spatial-multiplex pilot subcarrier signal from a received signal subjected to a multicarrier modulation; a phase compensating section that detects and compensates for a phase difference of the received signal by comparing the reference signal obtained by the reference signal generating section with the spatial-multiplex pilot subcarrier signal obtained by the spatial-multiplex pilot subcarrier extracting section; a spatial-multiplex pilot subcarrier replica generating section that generates a replica signal of the spatial-multiplex pilot subcarrier signal; and a pilot subcarrier channel estimation section that calculates a channel estimation value for a pilot subcarrier using a known pilot signal included in the received signal, wherein the reference signal generating section generates the reference signal by adding channel fluctuation according to the channel estimation value, to the replica signal.