Automatic detection of hyperbolic signatures in ground-penetrating radar data

Waleed Al-Nuaimy; Yi Huang; Asger Eriksen; Van Thuan Nguyen

doi:10.1117/12.450177

27 November 2001 Automatic detection of hyperbolic signatures in ground-penetrating radar data

Waleed Al-Nuaimy, Yi Huang, Asger Eriksen, Van Thuan Nguyen

Proceedings Volume 4491, Subsurface and Surface Sensing Technologies and Applications III; (2001) https://doi.org/10.1117/12.450177
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

This paper addresses the task of automatic detection and characterization of the signatures of solid reflecting targets in ground-penetrating radar data. The images generated by ground-penetrating radar are of a much lower resolution than conventional images, due to the ratio of the wavelength of the radiation and the physical dimensions of the target, and hence do not correspond to the geometrical representation of the targets. For the class of target under consideration, namely localized or extended linear reflecting targets such as land-mines, pipes or cables, the reflections exhibit a broad hyperbolic anomaly in the region of the target. Detection and characterization of these distinctive signatures yields information about the location of the targets as well as the surrounding medium. Edge enhancement and edge processing techniques are developed to trace the envelope of the reflected wavefronts. By fitting hyperbolae to these detected edges, the location of the targets and the relative permittivity of the medium are estimated. This estimate enables the effective elimination of the background clutter that leads to spurious non-hyperbolic reflections. Thus automatic target detection and mapping is achieved without the heavy computational demands of techniques such as synthetic aperture radar processing, enabling on-site data interpretation.

Citation Download Citation

Waleed Al-Nuaimy, Yi Huang, Asger Eriksen, and Van Thuan Nguyen "Automatic detection of hyperbolic signatures in ground-penetrating radar data", Proc. SPIE 4491, Subsurface and Surface Sensing Technologies and Applications III, (27 November 2001); https://doi.org/10.1117/12.450177

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