Title :
Joint TOA/DOA measurements for spatio-temporal characteristics of 2.4 GHz indoor propagation channel
Author :
Vu, Van Yem ; Braga, A. Judson ; Huyart, Bernard ; Begaud, Xavier
Author_Institution :
GET-Telecom Paris
Abstract :
The aim of this paper is to present a new system based on five-port reflectometers, which measures direction of arrival (DOA) in azimuth plane and propagation time of arrival (TOA) of incoherent signals and coherent signals simultaneously for indoor communication applications. The receiver operating at 2.4 GHz consists of seven five-ports and a uniform linear array (ULA) of seven quasi-Yagi antennas. The spatio-temporal signal processing method is also proposed. Estimation procedure for joint DOA and TOA is based on the multiple signal classification (MUSIC) algorithm associated with spatial smoothing pre-processing (SSP) and the frequency domain sounding technique. It is clear from the simulation results and measurement results that it is possible to measure simultaneously TOA and DOA using five-port technique
Keywords :
UHF antennas; Yagi antenna arrays; direction-of-arrival estimation; indoor radio; linear antenna arrays; signal classification; smoothing methods; time-of-arrival estimation; wireless channels; 2.4 GHz; DOA; TOA; azimuth plane; direction of arrival; five-port reflectometers; frequency domain sounding technique; indoor communication applications; indoor propagation channel; multiple signal classification; quasi-Yagi antennas; spatial smoothing pre-processing; spatio-temporal characteristics; spatio-temporal signal processing method; time of arrival; uniform linear array; Antenna measurements; Antennas and propagation; Azimuth; Direction of arrival estimation; Indoor communication; Linear antenna arrays; Multiple signal classification; Receiving antennas; Signal processing algorithms; Time measurement;
Conference_Titel :
Wireless Technology, 2005. The European Conference on
Conference_Location :
Paris
Print_ISBN :
2-9600551-1-X
DOI :
10.1109/ECWT.2005.1617651
