Title :
Joint TOA/DOA measurements for UWB indoor propagation channel using MUSIC algorithm
Author :
El Arja, Hajar ; Huyart, Bernard ; Begaud, Xavier
Author_Institution :
COMELEC Dept., TELECOM Paristech, Paris, France
Abstract :
A wideband indoor propagation channel sounder with parallel RF chains based on five-port reflectometers is presented in order to measure the direction of arrival (DOA) in azimuth plane and propagation time of arrival (TOA) of coherent UWB signals. Low-cost and high-resolution are obtained using a five-port receivers and the multiple signal classification (MUSIC) algorithm. This algorithm is associated with a spatial smoothing pre-processing (SSP) and the frequency domain sounding technique. The receiver operates around 7.25 GHz and covers up to 2.5 GHz. Experimental measurements are performed in an anechoic chamber, the results show errors lower than 0.1 ns in the time domain and of few degrees in the angular domain.
Keywords :
broadband networks; direction-of-arrival estimation; frequency-domain analysis; indoor radio; reflectometers; signal classification; signal resolution; smoothing methods; time-of-arrival estimation; ultra wideband communication; wireless channels; MUSIC algorithm; UWB indoor propagation channel; anechoic chamber; azimuth plane; direction-of-arrival estimation; five-port receivers; five-port reflectometer; frequency 2.5 GHz; frequency domain sounding technique; high-resolution signal; joint TOA-DOA measurement; multiple signal classification algorithm; parallel RF chain; spatial smoothing pre-processing; time-of-arrival estimation; wideband indoor propagation channel sounder; Acoustic propagation; Azimuth; Classification algorithms; Frequency domain analysis; Multiple signal classification; RF signals; Radio frequency; Smoothing methods; Time measurement; Wideband;
Conference_Titel :
Wireless Technology Conference, 2009. EuWIT 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4721-3
