Rooting techniques for estimation of angular spread with an antenna array

Author

Bengtsson, Mats ; Ottersten, Björn

Author_Institution

R. Inst. of Technol., Stockholm, Sweden

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

1158

Abstract

When antenna arrays are used in mobile communications systems, multipath propagation effects must be taken into account. Local scattering around each signal source causes angular spreading. One important parameter for optimal transmit and receive algorithms is the width of the angular spread of each scattered source signal. We present a new principle for consistent estimation of direction of arrival as well as angular spread using standard rooting techniques such as root MUSIC, MODE or ESPRIT. The computational complexity is much lower than for previously suggested algorithms

Keywords

antenna arrays; array signal processing; computational complexity; direction-of-arrival estimation; electromagnetic wave scattering; land mobile radio; multipath channels; radiowave propagation; DOA estimation; ESPRIT; MODE; angular spread; angular spread estimation; antenna array; array signal processing; computational complexity; direction of arrival; local scattering; mobile communications systems; multipath propagation effects; optimal receive algorithms; optimal transmit algorithms; root MUSIC; rooting techniques; scattered source signal; signal source; Antenna arrays; Antennas and propagation; Array signal processing; Direction of arrival estimation; Least squares approximation; Mobile antennas; Multidimensional signal processing; Rayleigh scattering; Receiving antennas; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600512

Filename

600512