Modelagem Tensorial Para Estimação de Parâmetros em Arranjos L-shape de Antenas Vetoriais

Abstract

This paper presents a tensorial approach for the modeling and estimation of parameters in L-shape vector antenna arrays. Making use of the PARAFAC decomposition, we propose a method for estimating the directions of arrival and polarizations of the sources. The proposed method is based on the combination of two PARAFAC models that globally characterize the received signal in an L-shape vector antenna array, allowing to efficiently exploit the polarization of the impinging electromagnetic waves. The estimation of the parameters (directions of arrival and polarization) is obtained by means of an alternating least squares algorithm. Simulation results are presented to corroborate the satisfactory performance of the proposed method.