Indirect Localization and Imaging of Objects in an UWB Sensor Network

Author

Hirsch, Ole ; Janson, Malgorzata ; Wiesbeck, Werner ; Thomä, Reiner S.

Author_Institution

Inst. fur Informationstechnik, Tech. Univ. Ilmenau, Ilmenau, Germany

Volume

59

Issue

11

fYear

2010

Firstpage

2949

Lastpage

2957

Abstract

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.

Keywords

microwave imaging; ray tracing; synchronisation; ultra wideband communication; wireless sensor networks; UWB sensor network; distributed ultrawideband sensor network; indirect localization; line-of-sight paths; microwave imaging; objects imaging; ray-tracing simulations; temporal network node synchronization; Apertures; Diffraction; Image edge detection; Imaging; Mobile communication; Radar imaging; Localization; microwave imaging; sensor network; ultrawideband (UWB);

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2010.2046359

Filename

5580096