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UWB SAR Imaging of Near-Field Object for Industrial Process Applications

Seyedeh Shaghayegh Fayazi (Institutionen för signaler och system) ; Jian Yang (Institutionen för signaler och system, Antenner) ; Hoi Shun Lui
7th European Conference on Antennas and Propagation, EuCAP 2013, Gothenburg, Sweden, 8-12 April 2013 (2164-3342). p. 2245-2248. (2013)
[Konferensbidrag, refereegranskat]

Ultra wideband technology becomes more widely used for near-field object detection. We present an aperture synthetic radar (SAR) system using ultra-wideband (UWB) signals for such applications. One of the problems with UWB time-domain SAR imaging algorithm is the artefact originated from scattered field of adjacent objects. In this paper an algorithm based on the Range Point Migration (RPM) method is used to alleviate this problem. This method estimates a possibility distribution of the optimal Direction of Arrival (DOA) of the scattered field from objects. A weighting factor based on this possibility is used to suppress the effect of artifact scattered fields. The results in the paper show that the UWB SAR accompanied with RPM can produce an image of an object with a significant suppression of undesired artifact from scattered field of adjacent objects.

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Denna post skapades 2013-05-31. Senast ändrad 2014-01-09.
CPL Pubid: 177768


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Institutioner (Chalmers)

Institutionen för signaler och system (1900-2017)
Institutionen för signaler och system, Antenner (2005-2014)


Informations- och kommunikationsteknik
Elektroteknik och elektronik

Chalmers infrastruktur