DECOUPLED UNITARY ESPRIT ALGORITHM FOR 2-D DOA ESTIMATION

Decoupled Unitary Esprit Algorithm for 2-d Doa Estimation

In this paper, a new decoupled Unitary ESPRIT algorithm for two-dimensional (2-D) direction-of-arrival (DOA) estimation is presented. By exploiting the centro-symmetric array configurations of two parallel uniform linear arrays (TP-ULAs) and utilizing the via rotational invariance techniques, the proposed algorithm has advantages as listed below. First, the algorithm enables decoupling the esti...

On Improving the Recursive Unitary Esprit for Iterative Doa Estimation

2-D Unitary ESPRIT-Like Direction-of-Arrival (DOA) Estimation for Coherent Signals with a Uniform Rectangular Array

A unitary transformation-based algorithm is proposed for two-dimensional (2-D) direction-of-arrival (DOA) estimation of coherent signals. The problem is solved by reorganizing the covariance matrix into a block Hankel one for decorrelation first and then reconstructing a new matrix to facilitate the unitary transformation. By multiplying unitary matrices, eigenvalue decomposition and singular v...

3-D unitary ESPRIT for joint 2-D angle and carrier estimation

It is essential for an efficient frequency and time slot allocation procedure in future mobile communication systems using space division multiple access (SDMA) to determine the mobiles that are spatially well separated from one another. Thus, once a mobile desires to initiate a call, precise knowledge of the 2-D arrival angles of its dominant wavefronts is required. In this application, 3-D Un...

Simulation Study on DOA Estimation using ESPRIT Algorithm

An array antenna system with innovative signal processing can enhance the resolution of a signal direction of arrival (DOA) estimation. The performance of DOA using estimation signal parameter via a rotational invariant technique is investigated in this paper. The DOA angles are derived from the auto-correlation and cross-correlation matrices. Three matrix estimation methods, (1) temporal avera...