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In this paper a comparative performance analysis of the time and frequency domain techniques in element or beam space adaptive array processing is presented. Only the steady-state performance in representative background conditions is considered. Signal-to-background improvement, interference cancellation and bearing response patterns are used as the primary performance measures. The problem of signal preservation with various types and orders of constraints for signals of various strength is analyzed. Examples of partially adaptive modes of operation are presented to determine the number of adaptive elements or beams that should be employed for satisfactory operation under given conditions.
Ayhan Vural (Thu,) studied this question.