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Proceedings Paper

Detection of concealed ground targets in CARABAS SAR images using change detection
Author(s): Lars M.H. Ulander; Per-Olov Froelind; Anders Gustavsson; Hans Hellsten; Bjoern Larsson
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Paper Abstract

The paper describes a new method to detect man-made objects hidden under foliage or camouflage. The method is based on change detection and thus multiple revisits of the same area. It uses SAR image data provided by the low-frequency and ultra-wideband CARABAS SAR system which operate in the 20 - 90 MHz frequency range. Experimental results show a drastic reduction in false-alarm rate compared to methods based on single-pass SAR images. Small- to medium-sized trucks are consistently detected with a false-alarm rate of the order of 0.1 - 1 per km2. This level of false-alarm rate is quite sufficient for most military or civilian applications of interest.

Paper Details

Date Published: 13 August 1999
PDF: 10 pages
Proc. SPIE 3721, Algorithms for Synthetic Aperture Radar Imagery VI, (13 August 1999); doi: 10.1117/12.357641
Show Author Affiliations
Lars M.H. Ulander, Swedish Defence Research Establishment (Sweden)
Per-Olov Froelind, Swedish Defence Research Establishment (Sweden)
Anders Gustavsson, Swedish Defence Research Establishment (Sweden)
Hans Hellsten, Swedish Defence Research Establishment (Sweden)
Bjoern Larsson, Swedish Defence Research Establishment (Sweden)


Published in SPIE Proceedings Vol. 3721:
Algorithms for Synthetic Aperture Radar Imagery VI
Edmund G. Zelnio, Editor(s)

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