| 摘要 |
PROBLEM TO BE SOLVED: To provide a calibrating device, capable of correcting an error resulting from interference between elements in a receiving array antenna. SOLUTION: The receiving array antenna 3 is rotated by a rotating base 5 and received signals, which are calibration signals, are obtained, when the antenna is directed in respective directions. A coupling matrix estimating device 6 estimates the coupling matrix, which is the product of an initial deviation matrix and a mutual interference matrix, expressing interference between elements from the received signals in respective directions by using the linear least square method. Both the initial deviation and the interference between elements can be suppressed, through multiplying of the signals received via the receiving array antenna 3 by this coupling matrix.
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