Detection of concealed ground targets in CARABAS SAR images using change detection

Lars M.H. Ulander; Per-Olov Froelind; Anders Gustavsson; Hans Hellsten; Bjoern Larsson

doi:10.1117/12.357641

13 August 1999 Detection of concealed ground targets in CARABAS SAR images using change detection

Lars M.H. Ulander, Per-Olov Froelind, Anders Gustavsson, Hans Hellsten, Bjoern Larsson

Proceedings Volume 3721, Algorithms for Synthetic Aperture Radar Imagery VI; (1999) https://doi.org/10.1117/12.357641
Event: AeroSense '99, 1999, Orlando, FL, United States

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.

Citation Download Citation

Lars M.H. Ulander, Per-Olov Froelind, Anders Gustavsson, Hans Hellsten, and Bjoern Larsson "Detection of concealed ground targets in CARABAS SAR images using change detection", Proc. SPIE 3721, Algorithms for Synthetic Aperture Radar Imagery VI, (13 August 1999); https://doi.org/10.1117/12.357641

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