ADAPTIVE ARRAY ANTENNA DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an adaptive array antenna device capable of setting a beam width for the arriving azimuth of a desired wave formed in restraining a plurality of points in an optimum state, even if the frequency of the desired wave becomes a high frequency. SOLUTION: In step S10, reception data Xk(t) and the arriving azimuth of the desired wave are received from Hilbert transformation sections 17-1 to 17-8 and an azimuth measuring processing section 19, and in step S20, a covariance matrix R is calculated by the reception data Xk(t). In step S30, a plurality of constraint azimuth points are determined using the above formula (1) from the arriving azimuth information. In step S40, a restraint matrix C and a restraint response vector H are calculated. In step S50, a weight vector Woptis calculated on the basis of the covariance matrix R, the restraint matrix C and the restraint response vector H. In step S60, the reception data Xk(t) is multiplied by the weight vector Woptto calculate the reception data of the desired wave and an undesired wave. COPYRIGHT: (C)2005,JPO&NCIPI