OTST-ESPRIT Algorithm and It's Performance
Yu Ge · Journal of Northeastern University · 2005
An OTST-ESPRIT algorithm is proposed after discussing the joint estimation algorithm of direction of arrival (DOA) and delay for multipath signals in wireless network communication environment. delay and DOA are estimated by the OT-ESPRIT algorithm and OS-ESPRIT algorithm in the proposed algorithm, respectively. Only the one-step eigenvalue decomposition (EVD) is needed to estimate delay or DOA, making use of the OT-ESPRIT or OS-ESPRIT algorithm. Multiple EVDs are thus avoided efficiently to lower the complexity of TST-ESPRIT algorithm. Gramer-rao bound of the joint estimation of DOA and delay is then given for the multipath signal model. Computational complexity of the proposed algorithm is analyzed. Some simulations are provided to justify the proposed algorithm.