A reception weight calculation section 203 calculates reception weights
W1 and W2 every antenna using an optimal directional control
method in order to improve interference cancellation effect, an arrival direction
estimation section 204 estimates a direction of arrive of a received signal
for each antenna to calculate steering vectors S1 and S2 for
each antenna, and a replica weight calculation section 211 calculates replica
weights Wr1 and Wr2 using the reception weights W1,
W2 and steering vectors S1, S2.