| 摘要 |
PROBLEM TO BE SOLVED: To find an azimuth measuring method where the arrival direction of a plurality of interfering radio waves can be measured, using two antennas arranged to be separated. SOLUTION: The sum signal and the difference signal of signals, induced in the two antennas arranged separated, are multiplied by a processing function corresponding to an angle of incidence decided by the interval between the antennas and the wavelength used. A frequency spectrum which is obtained by subjecting the square of absolute values of their difference outputs to Fourier- transformation is found. The angle, at which an angle spectrum obtained at the setting angle of the processing function becomes minimum on the frequency spectrum, is found.
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