Solution of underdetermined Sylvester equations in sensor array signal processing
We propose efficient solution of an underdetermined matrix equation. The matrix equations studied here appear in the study of subspace-based high-resolution multiparameter direction-of-arrival estimation. The proposed gradient-based technique is at least an order-of-magnitude computational improvement over the existing approaches. Simulation results are provided to illustrated the proposed technique.
& Misra, P.
(1996). Solution of underdetermined Sylvester equations in sensor array signal processing. Linear Algebra and Its Applications, 249 (1), 1-14.