Title :
A TDOA system using received signal decomposition on delayed replicas
Author :
Nemec, Zdenek ; Bezousek, Pavel
Author_Institution :
Fac. of Electr. Eng. & Inf., Pardubice Univ., Pardubice
Abstract :
The paper deals with a received Wi-Fi (802.11 spec, b) signal, consisting of a dominant direct-path component and of a sum of multiple reflected signals. In this paper the system based on decomposition of RF data signals to a linear combination of delayed replicas is suggested. The dominant components TDOA´s could then be evaluated with a higher accuracy. It is shown, that this method may significantly enhance position estimation accuracy in indoor TDOA systems.
Keywords :
indoor radio; time-of-arrival estimation; wireless LAN; 802.11; Wi-Fi; direct-path component; indoor TDOA system; multiple reflected signals; position estimation; signal decomposition; Delay effects; Delay estimation; Delay lines; Informatics; Optical receivers; Optical transmitters; RF signals; Radio frequency; Signal resolution; Wireless communication;
Conference_Titel :
Radar Symposium, 2008 International
Conference_Location :
Wroclaw
Print_ISBN :
978-83-7207-757-8
DOI :
10.1109/IRS.2008.4585778
