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UWB Localization System with TDOA Algorithm Using Experimental Measurements

Authors:
Abdelmadjid Maali
Geneviève Baudoin
Hassane Mimoun
Abdelaziz Ouldali

Keywords: Ultra wideband (UWB), time difference of arrival (TDOA), maximum energy selection with search back (MESSB), cell averaging constant false alarm rate (CA-CFAR).

Abstract:
This paper investigates a 2D experimental location system based on time difference of arrival (TDOA) of ultra wideband (UWB) signals measured in line-of-sight (LOS) and non-line-of-sight (NLOS) environments. These measurements are carried out with the UWB radios PulsON 210 from Time Domain Corporation. The measured signals are collected with four antennas which are connected through cables and a power combiner to PulsON 210 receiver. After the calculation of the electric delays cables, we applied maximum energy selection with search back (MESSB) and cell averaging constant false alarm rate (CA-CFAR) algorithms to estimate the TDOA. These algorithms use the output of non-coherent energy detection (ED) receivers. The experimental results show that the performances of TDOA estimation obtained by MESSB and CA-CFAR algorithms give almost identical performances in the LOS environment, but in NLOS case, the performances of CA-CFAR algorithm are higher than those obtained by MESSB algorithm.

Pages: 97 to 102

Copyright: Copyright (c) IARIA, 2011

Publication date: April 17, 2011

Published in: conference

ISSN: 2308-4480

ISBN: 978-1-61208-128-1

Location: Budapest, Hungary

Dates: from April 17, 2011 to April 22, 2011