Patent ID: 7565172
Filing Date: 2009-07-21
Classification: H01Q,H04B

Abstract:
1. An adaptive antenna reception method, in which the directional beam of an array antenna consisting of a plurality of antenna elements is adaptively formed to receive a desired signal as well as to suppress interference signals in multiplexed signals transmitted from a plurality of senders, and the desired signal is corrected based on transmission channel estimation, the method comprising: a first step of adaptively updating antenna weight based on minimum mean squared error (MMSE) control according to signals received by the respective antenna elements and an error signal obtained from the desired signal corrected based on the transmission channel estimation; a second step of correcting the antenna weight obtained in the first step using a direction vector to maintain a correlation between the antenna weight and the direction vector constant; a third step of receiving the desired signal through the array antenna using the antenna weight which has undergone the correcting process in the second step; and a fourth step of estimating the transmission channel of the desired signal received in the third step to correct the desired signal based on the estimation result.