Array processing in UWB localization

This work explores the utilization of arrays to enhance ultrawideband (UWB) performance in non-line-of-sight (NLOS) environments and to provide range extension through operation in low signal-to-noise ratio (SNR) environments. Processing algorithms are described and evaluated using measured data set...

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Bibliographic Details
Published inIEEE Conference on Ultra Wideband Systems and Technologies, 2003 pp. 167 - 171
Main Authors Pratt, T.G., Wheeler, M.L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Antenna arrays
Antenna measurements
Array signal processing
Degradation
Sensor arrays
Sensor systems
Signal detection
Signal processing algorithms
Signal to noise ratio
Ultra wideband antennas
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Summary:This work explores the utilization of arrays to enhance ultrawideband (UWB) performance in non-line-of-sight (NLOS) environments and to provide range extension through operation in low signal-to-noise ratio (SNR) environments. Processing algorithms are described and evaluated using measured data sets provided by UltRaLab. Array processing is used to excise inconsistent detections and to provide estimates of measurement reliability for use in localization solvers. Angle-of-arrival (AOA)-based metrics are considered for time-of-arrival (TOA) systems, and TOA-based metrics are investigated for time difference-of-arrival (TDOA) systems. General trends suggest that the integration of array processing can significantly enhance performance in non-LOS, low SNR environments.
ISBN:0780381874
9780780381872
DOI:10.1109/UWBST.2003.1267825