Title :
High resolution location in ultra wideband communications systems
Author :
Medina, Emerson ; Nájar, Montse
Author_Institution :
Dept. of Signal Theory & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
Ultra wideband (UWB) communications systems provide high accuracy positioning estimation because the high multipath resolution capacity. This paper deals with the normalized minimum variance (NMV) technique for estimating time of arrival (TOA) exploiting the pulse train defined in the Impulse Radio (IR) transmission. Positioning estimation is tackled with the extended Kalman filter (EKF) with TOA bias tracking allowing high accuracy even in non line of sight (NLOS) scenarios.
Keywords :
Kalman filters; nonlinear filters; signal resolution; time-of-arrival estimation; ultra wideband communication; TOA; extended Kalman filter; high multipath resolution capacity; non line of sight scenarios; normalized minimum variance; positioning estimation; time of arrival estimation; ultra wideband communications systems; Bandwidth; Communication standards; Communication systems; FCC; Proposals; Pulse modulation; Spread spectrum communication; Tiles; Timing; Ultra wideband technology;
Conference_Titel :
Networking with Ultra Wide Band and Workshop on Ultra Wide Band for Sensor Networks, 2005. Networking with UWB 2005. 2nd International Workshop
Print_ISBN :
0-7803-9126-8
DOI :
10.1109/NETUWB.2005.1469999
