Signal Copy with Array Calibration Errors

This paper studies the effect of array manifold errors on ihe performance of various signal copy algorithms. under t h e assumption that the observation time is suficiently long, the following algorithms are atudied: classical beamforming, least squares, total least squares, linearly constrained minimum variance beamforming, and structured stochastic estimation. Expressions JOT the mean-square error of the signal estimates are derived as a function of the manifold errors f o r both the case where the directions of arrival (DOAs) are known precisely and for the case where the DOAs must be estimated.