Time-frequency analysis of synthetic aperture radar images of selected ordnance pieces

David C. Wong; Lam H. Nguyen; Guillermo C. Gaunaurd; Anders J. Sullivan

doi:10.1117/1.3134134

1 April 2009 Time-frequency analysis of synthetic aperture radar images of selected ordnance pieces

David C. Wong, Lam H. Nguyen, Guillermo C. Gaunaurd, Anders J. Sullivan

Author Affiliations +

Journal of Electronic Imaging, Vol. 18, Issue 2, 023011 (April 2009). https://doi.org/10.1117/1.3134134

Abstract

We present a modification of the standard time-frequency (t-f) analysis for landmine detection. The modification is adapted to synthetic aperture radar (SAR) images that may or may not exhibit near-circular symmetry. Each prospective SAR image is here sliced along several directions to generate t-f plots along those chosen cuts, and the resulting 2-D plots are correlated in pairs to obtain a relevant metric, which is defined as their ratio. This metric has served to distinguish targets from clutter objects in the various cases examined here. The procedure was validated using a dataset obtained in a recent field test, and the results are shown.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

David C. Wong, Lam H. Nguyen, Guillermo C. Gaunaurd, and Anders J. Sullivan "Time-frequency analysis of synthetic aperture radar images of selected ordnance pieces," Journal of Electronic Imaging 18(2), 023011 (1 April 2009). https://doi.org/10.1117/1.3134134

Published: 1 April 2009

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