Indirect Localization and Imaging of Objects in an UWB Sensor Network

Indirect Localization and Imaging of Objects in an UWB Sensor Network

A method for the localization and the rough 2-D microwave imaging of objects is described. It detects and utilizes line-of-sight (LOS) paths between a mobile node and several fixed nodes of a distributed ultrawideband (UWB) sensor network. Objects are imaged in an indirect way, i.e., by a combinatio...

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Veröffentlicht in:IEEE transactions on instrumentation and measurement 2010-11, Vol.59 (11), p.2949-2957
Hauptverfasser: Hirsch, Ole, Janson, Malgorzata, Wiesbeck, Werner, Thomä, Reiner S
Format: Artikel
Sprache:eng
Schlagworte:
Apertures
Diffraction
Image edge detection
Imaging
Instrumentation
Localization
microwave imaging
Microwaves
Mobile communication
Networks
Position (location)
Radar imaging
sensor network
Sensors
Ultrawideband
ultrawideband (UWB)
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Beschreibung
Zusammenfassung:A method for the localization and the rough 2-D microwave imaging of objects is described. It detects and utilizes line-of-sight (LOS) paths between a mobile node and several fixed nodes of a distributed ultrawideband (UWB) sensor network. Objects are imaged in an indirect way, i.e., by a combination of maps, which show the distribution of LOS paths of individual network nodes. The method is demonstrated by means of ray-tracing simulations and measurements in a realistic environment. Performance limitation by diffraction and the question of temporal network node synchronization are discussed.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2010.2046359