Adaptive array antenna receiving apparatus and antenna array calibration method

摘要

An amplitude-phase information acquiring section 105 acquires information indicating variation in amplitude and phase, using a probe signal that suffers the same variation in amplitude and phase as a communication traffic signal received by antennas suffers, between each antenna and the amplitude-phase information acquiring section 105. A received power measuring section 106 measures the received power of the communication traffic signal and the probe signal. A correction value control section 107 adaptively determines, based on the amplitude-phase information and the received power, a correction value for correcting for the variation of the amplitude and phase of the communication traffic signal. A correcting section 108, for each antenna, corrects for the variation of the amplitude and phase of the communication traffic signal by using the correction value determined based on the received power. By this means, it is possible to correct for the amplitude-phase characteristic difference due to variations of input power levels for the electronic elements and thus provide an adaptive array antenna receiving apparatus that performs accurate directivity control.