Joint angle and frequency estimation for linear array: an extended DOA-matrix method

An approach for joint direction of arrival (DOA) angle and frequency estimation for a linear array is investigated in this paper. Specifically, we make the utmost of the autocorrelation and cross-correlation information to propose an extended DOA -matrix (EDOAM) method. Subsequently, we obtain the auto -paired angle and frequency estimates by the eigenvalues and the corresponding eigenvectors of the novel DOA matrix. Fur-thermore, the proposed method surpasses the DOA-matrix method which partly ignores the autocorrelation and cross -cor-relation information. Finally, the proposed method works well for both uniform and non-uniform linear arrays. The simulation con-sequences indicate the superiority of our proposed approach.