A DOA Estimator Based on Linear Prediction and Total Least Squares

"We propose an estimator for the direction of arrival (DOA) of plane waves incident on a linear equally spaced array of sensors. The estimator uses the forward - backward linear prediction filter optimized by means of the total least squares criterion subject to constraints. The DOA angles are estimated by the zeros of the optimum filter. The proposed procedure performs better than the maximum likelihood methods present in the literature."