A STUDY OF STEADY-STATE PERFORMANCE IN ADAPTIVE BEAMFORMING

The general representation of steady state directivity of adaptive system designed under the LMS criteria is given.
As the function of generalized angle between signal and interference, the methods for calculating the width of main beam, the deepness of zero point of supressing interference, and the limit resolution ability are presented.
In general case, the maximum value of directivity have some deviations from the signal direction. The numerical examples are given in each considered situation.