ADAPTIVE ANTENNA ARRAY Russian patent published in 1997 - IPC

FIELD: radio engineering, communication, adaptive antenna arrays, communication with mobile objects. SUBSTANCE: cyclically repeated procedure of change of weight coefficients is carried out with the help of commutator 8, unit 9 evaluating quality of reception of signals, control unit 10 and second multiplier of inverse selective correlation matrix. In the capacity of weight coefficient there are used i-th column of normal correlation matrix of input signals which stops on weight coefficient W_i(i=2,3,...N.1) ensuring maximum value of index of quality of reception of signals. Proposed adaptive antenna array is illustrated in drawing 1, where 1 are antenna elements; 2 are weight multipliers, 3 is common adder; 4 is control processor; 5 is former of selective correlation matrix; 6 is unit inverting selective correlation matrix; 7 is first unit of inverse selective correlation matrix of multiplication of inverse correlation matrix of controlling vector; 8 is commutator, 9 is unit evaluating quality of reception of signals; 10 is control unit; 11 is second multiplier of inverse selective correlation matrix by controlling vector. EFFECT: design of adaptive antenna array providing for higher noise immunity of reception of signals in absence of a priori information on direction of coming of legitimate signal. 2 dwg