In this paper, an effective direction-of-arrival (DOA) and range estimations method for mixed
far-field and near-field non-circular sources is proposed based on a large centrosymmetric
uniform linear array (ULA). By exploiting the non-circularity of the sources, an extended
signal is generated by concatenating the received array data and its conjugate counterparts.
Then the DOAs of far-field signals are estimated based on the extended covariance matrix
with the traditional MUSIC algorithm. After eliminating the far-field components from the …