A method of choosing element patterns in an adaptive array

A procedure for choosing element patterns in an adaptive array is described. The method is useful when the adaptive array must provide sector coverage, i.e., when the desired signal may arrive from anywhere within some sector of space. The procedure is to start with an initial set of elements and then add extra elements one at a time until suitable performance is obtained. The condition that must be satisfied by each new element to obtain maximum performance improvement is derived.