Title :
Robust direction estimation of UWB sources in Laguerre-Gauss beamspaces
Author :
Di Claudio, Elio D. ; Jacovitti, Giovanni ; Laurenti, Alberto
Author_Institution :
DIET, Dept. of Information Engineering, Electronics and Telecommunications, University of Rome “La Sapienza”, Via Eudossiana, 18, I-00184, Italy
Abstract :
A novel method for estimating the direction of arrival of ultra-wideband wavefronts impinging on a linear uniform sensor array is proposed. It is based on expanding the space time signals onto a basis of Laguerre-Gauss Circular Harmonic functions, whose peculiar properties lead to a new signal subspace parametric model. This approach allows robust angle of arrival estimation in low signal to noise ratio environments.
Keywords :
Arrays; Direction of arrival estimation; Estimation; Robustness; Signal to noise ratio; Tomography; Laguerre-Gauss Circular Harmonic expansion; UWB DOA; UWB communications; space-time array processing;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague, Czech Republic
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5947051
