A Modified T-ESPRIT for 2-D Direction of Arrival Estimation Performance Enhancement

Abstract

Abstract-A new algorithm for improving 2D-Direction of Arrival Estimation (2D-DOAE) accuracy and estimator performance has been carried out. Subspace concept has been employed into ESPRIT method to reduce the computational complexity and the model's non-linearity effect into 2D-DOAE problem. The algorithm accuracy is verified by closed-form Cramé r-Rao bound (CRB). The simulation results show that the proposed algorithm realizes estimation process better than those of the previous estimation techniques leading to the estimator performance enhancement.Index Terms-DOAE, Subspace, ESPRIT, angle glint.

Doppler Correction to Improve TS-ESPRIT Algorithm Used in NULA

“…In this model, the transmission medium and the signals are assumed to be the same as [1], and [12]. Assume there is a number antenna element, and it is divided into L number multiple uniform linear antenna (ULA) each with total N number antenna element in receiving system shown in Fig.…”

“…In previous work, the method involved in both the temporal and spatial resolution (TS-ESPRIT) had been introduced to realize subspace approach by combining the S-ESPRIT method with the T-ESPRIT [1] , [2], [12] which realized high estimation accuracy with low computational load due to benefit from the advantages of subspaces and multi-resolution techniques.…”