Experimental and theoretical comparison of some algorithms for beamforming in single receiver adaptive arrays
Abstract
Adaptive null steering in single receiver adaptive arrays is discussed. Since the single receiver structure allows only output power for a given set of weights to be measured, the problem is to adaptively adjust the weights of the antenna array, based on output power measurements only, so as to reject interference signals while maintaining a fixed response in a given look direction. The key idea of this work is to determine the optimal beamformer weights in a single step, by estimating the covariance matrix of the array sensor outputs using a weight perturbation technique. Based on this covariance matrix estimate, three different approaches for finding the beamformer weights are studied.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 January 1991
 Bibcode:
 1991ITAP...39...21M
 Keywords:

 Adaptive Control;
 Antenna Arrays;
 Collimation;
 Phased Arrays;
 Radio Receivers;
 Steerable Antennas;
 Algorithms;
 Covariance;
 Incidence;
 Least Squares Method;
 Matrices (Mathematics);
 Maximum Likelihood Estimates;
 Perturbation Theory;
 Communications and Radar