Estimation of Phased Array Deformation Using Two Received Noisy Signals

A method is presented to estimate the shape of a deformed uniform linear array (ULA) using two received signals. The two signals can be noiseless ir contaminated with noise, which is of practical importance when deformation must be estimated using signals from a distance away from the array. Two sources with known angle of arrival (AOA) are used to estimate the distance and the angle of the deformed element with respect to the non-deformed element. The proposed estimation technique is applied to a deformed array with eight elements, and parametric studies of estimation performance are provided.