| 摘要 |
PROBLEM TO BE SOLVED: To provide a calibration system for array antenna receiver, with which the receiving sensitivity of a user signal with a mobile machine will not be deteriorated or the number of users of a cellular system is not decreased, even at operation. SOLUTION: On the basis of the detected voltage of a total received power inputted to radio reception part 1041 of antenna 1 to radio reception part 104N of antenna N, a calibration time deciding part 111 decides suitable calibration time for each radio receiving part of antenna and on the basis of the longest calibration time among these calibration times, a calibrating signal processing part 112 respectively detects the phase/amplitude information of a calibration signal from multiple signals outputted from the respective radio reception parts of antennas. On the basis of this phase/amplitude information, the output from each of radio reception parts of antennas is calibrated by signal processing part 1081 of user 1 to signal-processing part 108M of user M. |
