ADAPTIVE ARRAY ANTENNA APPARATUS AND ADAPTIVE CONTROL METHOD THEREOF

摘要

An adaptive array antenna apparatus, which has an array antenna including a plurality of antenna elements and which uses weighting factors to weight the signals received by the respective antenna elements, then combines the weighted received signals as a combined signal and outputs the combined signal, comprises a weighting factor calculating means that uses an adaptive control to calculate the weighting factors of the received signals in association with the respective antenna elements; and an adaptive control changing means that changes the adaptive control to be used by the weighting factor calculating means in accordance with the number of weighting factor calculations by the weighting factor calculating means. The adaptive control changing means reduces the weighting factor updating rate in accordance with the number of weighting factor calculations.