| 摘要 |
PROBLEM TO BE SOLVED: To separate a plurality of signals that collide with each other, while improving estimation accuracy of channel information.SOLUTION: Antenna elements A1, A2 and A3 receive reception signals each including a preceding signal and a following signal that collides with the preceding signal. A preceding signal channel estimation part 105 estimates channel information of the preceding signal. A pseudo signal generation part 107 generates a plurality of pseudo signals which come from a direction different from an arrival direction of the preceding signal and of which the arrival directions are different from each other, more than the number of antenna elements. A weight generation part 108 generates a plurality of weights corresponding to each of the plurality of generated pseudo signals and forming a null in the arrival direction of the preceding signal. A weight multiplication part 109 multiplies the reception signals that are received by the antenna elements A1, A2 and A3, by the plurality of generated weights, thereby obtaining weight multiplied signals. A following signal channel estimation part 111 estimates channel information of the following signal on the basis of the weight multiplied signals.SELECTED DRAWING: Figure 6 |
