Multipath detection in TDOA localization scenarios

Author

Steffes, Christian ; Rau, Sven

Author_Institution

Dept. Sensor Data & Inf. Fusion, Fraunhofer Inst. for Commun., Wachtberg, Germany

fYear

2012

Firstpage

88

Lastpage

92

Abstract

In this paper, we investigate the detection of multi-path signal propagation in a Time Difference of Arrival (TDOA) localization scenario. Usually, TDOA measurements are obtained by determining the absolute maximum of the cross correlation function of signals recorded at different sensor nodes in a sensor network. Multipath signal propagation causes multiple peaks in the cross correlation function which lead to erroneous emitter localization. We use hypotheses of possible multipath signal propagation calculated from the autocorrelation functions to identify the line of sight (LOS) peak in the cross correlation function of a sensor pair.

Keywords

correlation methods; multipath channels; signal detection; time-of-arrival estimation; wireless sensor networks; LOS peak; TDOA localization scenarios; absolute maximum; autocorrelation functions; cross correlation function; line of sight peak; multipath emitter localization; multipath signal propagation detection; sensor network; sensor nodes; time difference of arrival measurements; Accuracy; Correlation; Delay; Geometry; Position measurement; Time difference of arrival; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Data Fusion: Trends, Solutions, Applications (SDF), 2012 Workshop on

Conference_Location

Bonn

Print_ISBN

978-1-4673-3010-7

Type

conf

DOI

10.1109/SDF.2012.6327914

Filename

6327914