Three-dimensional Position Estimation of Dielectric Objects using UWB-Pulses and Cross-Correlation Methods

Konferenz: GeMIC 2008 - German Microwave Conference
10.03.2008 - 12.03.2008 in Hamburg-Harburg, Germany

Tagungsband: GeMIC 2008

Seiten: 4Sprache: EnglischTyp: PDF

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Gülck, A.; Knöchel, R. (Microwave Laboratory, Faculty of Engineering, University of Kiel, Kaiserstr.2, 24143 Kiel, Germany)

This paper presents an approach for the rapid determination and localization of dielectric anomalies like foreign bodies in material layers. Ultra-wideband pulses with a duration of approximately 400ps and a cross-correlation algorithm are applied. Accurate position determination in a plane is possible without any calibration. If a volume is to be observed, an amplitude calibration has to be carried out. An experimental measurement set up is described. An accuracy (rms) of 2mm in xdirection, 5mm in y-direction and 25mm in z-direction is experimentally achieved for dielectric obstacles with diameters between 5-12mm and relative permittivities between 2-10.