Impulse Radio Ultra-Wideband Communications for Localization and Tracking of Human Body and Limbs Movement for Healthcare Applications

Accurate and precise motion tracking of limbs and human subjects has technological importance in various healthcare applications. The use of impulse radio-ultra wideband technology (IR-UWB) technology due its inherent properties is of recent interest for high-accuracy localization. This paper presen...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2017-12, Vol.65 (12), p.7298-7309
Main Authors: Bharadwaj, Richa, Swaisaenyakorn, Srijittra, Parini, Clive G., Batchelor, John C., Alomainy, Akram
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Body-worn antenna
Broadband
Cost analysis
Delays
Health care
healthcare
Human body
Human motion
Kurtosis
Limbs
Line of sight
Localization
Medical services
Motion capture
Receiving antennas
time of arrival (TOA)
Tracking
Ultra wideband antennas
Ultra wideband technologies
ultra-wideband (UWB) technology
Ultrawideband
Wideband communications
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Summary:Accurate and precise motion tracking of limbs and human subjects has technological importance in various healthcare applications. The use of impulse radio-ultra wideband technology (IR-UWB) technology due its inherent properties is of recent interest for high-accuracy localization. This paper presents experimental investigations and analysis of indoor human body localization and tracking of limb movements in 3-D based on IR-UWB technology using compact and cost-effective body-worn antennas. The body-centric wireless channel characterization has been analyzed in detail using parameters such as path loss magnitude, number of multipath components, rms delay spread, signal amplitude, and Kurtosis with the main focus to differentiate between line-of-sight (LOS) and non-LOS situations. Fidelity of the received signal is also calculated for different activities and antenna positions to study the pulse preserving nature of the UWB antenna, when it is placed on the human body. The results reported in this paper have high localization accuracy with 90% in the range from 0.5 to 2.5 cm using simple and cost-effective techniques which is comparable to the results obtained by the standard optical motion capture system.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2017.2759841