Analysis of the SAGE DOA parameter extraction sensitivity with 1.8 GHz indoor measurements

Author

Verhaevert, Jo ; Van Lil, Emmanuel ; Semmelrod, Sven ; Kattenbach, Ralf ; Van de Capelle, Antoine

Author_Institution

ESAT-TELEMIC, Katholieke Univ., Leuven, Belgium

Volume

1

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

69

Abstract

A channel measurement campaign, done with a system from the University of Kassel, is reported. With very high bandwidth (600 MHz), a large room has been measured at 1.8 GHz with a moving antenna, forming a synthetic aperture. The transformation from the transfer function in the frequency-domain to the time-domain received signal, with the training sequence included, is explained. On these data, the space alternating generalised expectation maximisation (SAGE) algorithm is applied to extract with high resolution the direction of arrival (DOA) parameters, in this case the time delay, the azimuth angle and the complex amplitude for every significant path. The extraction results are evaluated and visually interpreted.

Keywords

UHF measurement; UHF radio propagation; delays; frequency-domain analysis; indoor radio; optimisation; time-domain analysis; transfer functions; 1.8 GHz; 600 MHz; DOA parameter extraction; SAGE algorithm; azimuth angle; complex amplitude; frequency-domain analysis; frequency-domain transfer function; indoor channel measurements; moving antenna; space alternating generalised expectation maximisation algorithm; synthetic aperture; time delay; time-domain received signal; training sequence; Antenna measurements; Aperture antennas; Azimuth; Bandwidth; Data mining; Delay effects; Parameter extraction; Signal resolution; Time domain analysis; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1284980

Filename

1284980