Abstract:

A new joint estimative method of three-dimensional parameters for near-field sources without pairing parameters is presented. A new matrix is obtained from the transformation of the constructed four-order cumulant matrix of array output signals. The parameters are directly calculated by the eigenvalues and eigenvactors of the new matrix and just once eigen-decomposition. It does not requre searching spectral peak and can be used to arbitrary Gaussian noise environment, the result of the parameters estimation can achieved automatic pairing. The loss of array aperture is efficiently avoided because the method needs not to use the center of symmetry of the array stracture. Finally, the simulation results verify the effectiveness of the proposed method.