| 摘要 |
The present invention is provided with: reference signal normalization units (5-1 to 5-M) for normalizing frequency domain signals by designating, as a reference signal, one frequency domain signal pertaining to a receiving antenna (2) among frequency domain signals transformed using Fourier transform units (4-1 to 4-M) and by dividing frequency domain signals transformed using the Fourier transform units (4-1 to 4-M) by the reference signal; and standard frequency normalization units (6-1 to 6-M) for normalizing the frequency domain signals by using a frequency signal that becomes a standard and that is included in the frequency domain signals normalized using the reference signal normalization units (5-1 to 5-M). |
