A Novel Signal Processing Scheme for Static Person Localization Using M-Sequence UWB Radars

Developments in sensing technology have shown that UWB radars are becoming increasingly valuable sensing devices that can be used for monitoring of humans in military/police and civilian areas. It is known that the applicability of particular methods of human localization depends on the character of...

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Bibliographic Details
Published in:IEEE sensors journal 2021-09, Vol.21 (18), p.20296-20310
Main Authors: Kocur, Dusan, Porteleky, Tamas, Svecova, Maria, Svingal, Michal, Fortes, Jana
Format: Article
Language:English
Subjects:
Algorithms
Backscatter
Breathing
Clutter
detection
Human motion
Localization
Location awareness
Monitoring
Police
Radar
Radar tracking
Sensors
Signal processing
static person
tracking
Ultra wideband radar
ultra-wideband (UWB) radar
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Summary:Developments in sensing technology have shown that UWB radars are becoming increasingly valuable sensing devices that can be used for monitoring of humans in military/police and civilian areas. It is known that the applicability of particular methods of human localization depends on the character of persons' motion. With respect to this finding, the researchers' attention has been aimed at two fundamental directions. While the former is focused on the localization of moving persons (MP), the latter approach is intended to localize static persons (SP). Then, a proper fusion of the methods developed for MP and SP localization allows monitoring of persons moving with an unknown time-variable character of motion (MP-SP). The analyses of the currently known methods of MP and SP localization in terms of their use for MP-SP localization have shown that while MP localization methods are in principle well developed, SP localization methods are not sufficiently adapted for their use in MP-SP monitoring. Motivated by these findings, we would like to introduce a new radar signal processing procedure for SP localization (SPL) that could be an efficient component of algorithms to be applied for MP-SP monitoring. The novel features of the proposed SPL consist especially in a new approach to SP detection and inclusion of SP tracking in SPL. Moreover, SPL is characterized by relatively low computational complexity and is, therefore, suitable for real-time implementation. Experimental results have shown that SPL introduced in this paper provides very good performance for multiple person localization for line-of-sight and through-the-wall scenarios.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2021.3093658