Title :
Beamspace covariance-based DoA estimation
Author :
Ferreira, Tadeu N. ; Netto, Sergio L. ; Diniz, Paulo S R
Author_Institution :
Electr. Eng. Program/COPPE/DEL-Poli, Fed. Univ. of Rio de Janeiro, Rio de Janeiro
Abstract :
This work presents a new version, with reduced computational complexity, of the covariance-based direction-of-arrival (CB-DoA) algorithm. The new algorithm incorporates the concept of beamspace projection before performing the DoA estimation. Such modification reduces the dimensions of the matrices employed by the elements pace CB-DoA, simplifying the resulting computations while preserving the detectability of the original algorithm. The Beamspace CB-DoA algorithm is compared to the traditional algorithm Beamspace ESPRIT, as well as to element space CB-DoA.
Keywords :
covariance matrices; direction-of-arrival estimation; DoA estimation; beamspace covariance method; direction-of-arrival algorithm; matrix dimension; Antenna arrays; Bandwidth; Computational complexity; Direction of arrival estimation; Geometry; Maximum likelihood estimation; Parameter estimation; Radiofrequency interference; Receiving antennas; Transmitting antennas;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2008. SPAWC 2008. IEEE 9th Workshop on
Conference_Location :
Recife
Print_ISBN :
978-1-4244-2045-2
Electronic_ISBN :
978-1-4244-2046-9
DOI :
10.1109/SPAWC.2008.4641585