| 摘要 |
PROBLEM TO BE SOLVED: To reduce the influence of a delay wave, which doesn't come in a reference signal period, or an interference wave by adding reception signals of plural antennas after multiplying them by optimum values of successively operated weight coefficients respectively. SOLUTION: After received signals of plural antennas to which white noises with no correlations are added are multiplied by weight coefficients, optimum values of weight coefficients are successively operated so that the difference between a signal obtained by adding them and a reference signal may be minimum. Received signals of antennas are added after being multiplied by optimum values of successively operated weight coefficients respectively. For example, in an adaptive array device 100, a signal output part 110 is comprised of antennas 11 and 12, multipliers 21 and 22 which multiply their outputs x1 and x2 by weight coefficients w1 and w2 respectively, and an adder 30 which operates the sum of outputs of multipliers 21 and 22. Weight coefficients w1 and w2 are determined in a weight operation part 120 so that the component of a delay wave or an interference wave included in an output (y) of the adder 30 to be reduced.
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