| 摘要 |
A first reception circuit (SR 1 ) separates a signal from a desired terminal among signals from an adaptive array antenna (# 1 to # 4 ), based on a reception weight vector calculated in a reception weight vector calculator ( 20.1 ). A remodulation circuit ( 32.1 ) generates a first replica signal from a signal of a demodulated desired wave. A replica generating circuit ( 40.1 ) multiplies signals from a plurality of antennas by a weight vector for an interfering wave from a second reception circuit (SR 2 ), and generates a second replica signal corresponding to a signal from an interfering wave terminal. A reception response vector calculator ( 24.1 ) derives an impulse response of a propagation path of the signal from the desired terminal, based on the first and second replica signals.
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