Joint TOA estimation and NLOS identification based on UWB energy detection

Author

Maali, Abdelmadjid ; Mimoun, Hassane ; Baudoin, Geneviève ; Ouldali, Abdelaziz

Author_Institution

Commun. Syst. Lab., Mil. Polytech. Sch., Algiers, Algeria

fYear

2010

fDate

28-30 Sept. 2010

Firstpage

1508

Lastpage

1511

Abstract

In this paper, we propose a new joint time-of-arrival (TOA) estimation and non-line-of-sight (NLOS) identification approach for ultra-wideband (UWB) localization systems. We use an energy-based TOA estimation (EBE) algorithm. The NLOS detection is based on the ratio between the first path power (FPP) and the total signal power (TSP) of the received signal folded version (RSFV) of the EBE algorithm. The proposed approach is evaluated by Monte Carlo simulation on the CM1 and CM2 channel models of the standard IEEE802.15.4a. The simulation demonstrates that the correct identification of channel models with the proposed approach gives better results than those based on joint likelihood ratio.

Keywords

Monte Carlo methods; time-of-arrival estimation; ultra wideband communication; CM1 channel model; CM2 channel model; IEEE802.15.4a standard; Monte Carlo simulation; UWB energy detection; energy-based time-of-arrival estimation algorithm; first path power; joint likelihood ratio; joint time-of-arrival estimation; nonline-of-sight identification approach; received signal folded version; total signal power; ultra-wideband localization system;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2010 European

Conference_Location

Paris

Print_ISBN

978-1-4244-7232-1

Type

conf

Filename

5616672