| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a receiver device capable of separating and extracting transmission signals transmitted from a plurality of transmissions antennas provided to a transmitter device with high precision and high speed, relating to a mobile communication system which employs MIMO. Ž<P>SOLUTION: A receiver device 40 includes an optimum weight vector calculating part 46a which calculates optimum weight vector W(t) by sequentially updating first weight w<SB>11</SB>(t) corresponding to first reception signal x<SB>1</SB>(t) and second weight w<SB>12</SB>(t) corresponding to second reception signal x<SB>1</SB>(t) in a predetermined period, and first transmission signal separating/extracting parts 44a1, 44a2, and 45a for separating and extracting first transmission signal y<SB>1</SB>(t) using the optimum weight vector W(t). The optimum weight vector calculating part 46a calculates the optimum weight vector W(t) by sequentially updating the first weight w<SB>11</SB>(t) and second weigh w<SB>12</SB>(t) which meet a predetermined condition. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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