A new algorithm for joint range-DOA-frequency estimation of near-field sources (Q1773721)

Summary: This paper studies the joint estimation problem of ranges, DOAs, and frequencies of near-field narrowband sources and proposes a new computationally efficient algorithm, which employs a symmetric uniform linear array, uses eigenvalues together with the corresponding eigenvectors of two properly designed matrices to estimate signal parameters, and does not require searching for spectral peak or pairing among parameters. In addition, the proposed algorithm can be applied in arbitrary Gaussian noise environments since it is based on the fourth-order cumulants, which is verified by extensive computer simulations.