Title :
Delay-Dependent Threshold Selection for UWB TOA Estimation
Author :
Xu, Chi ; Law, Choi L.
Author_Institution :
Positioning & Wireless Technol. Center, Nanyang Technol. Univ., Singapore
fDate :
5/1/2008 12:00:00 AM
Abstract :
Precision ultra-wideband ranging requires accurate estimation of time of arrival (TOA). The threshold-based TOA estimation has attracted considerable interest due to its simplicity. In this paper, we propose a technique to set the threshold as a function of delay instead of a single value as in conventional methods. Simulation results show that the proposed method is superior to conventional methods.
Keywords :
delays; time-of-arrival estimation; ultra wideband communication; UWB TOA estimation; delay-dependent threshold selection; threshold-based TOA estimation; time of arrival estimation; ultra-wideband ranging; Clocks; Delay estimation; Filtering theory; Hardware; Propagation delay; Pulse modulation; Time of arrival estimation; Timing; Transmitters; Ultra wideband technology;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080015