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Ultrawide Band Synthetic Aperture Radar (UWB SAR) is an alternative to detect landmines. The echo of a landmine has “double-hump” signature, which corresponds to the returns of front and rear edges of the top of the landmine. However, their echo traces do not fit with the corresponding integral traces of the SAR imaging model, which can lead to defocusing in the SAR image. In this paper, we construct...
Ultra wide band synthetic aperture radar(UWB SAR) is an alternative way to detect landmines because of its ground-penetrating capability. In this paper, a UWB SAR landmine feature extraction method via a scale space method is proposed, based on wihich an efficient feature vector is obtained to discriminate landmines from clutter. The real date results show the validity of the new method.
Airborne or vehicle-borne Ground Penetrating Synthetic Aperture Radar (GPSAR) can image buried landmines from a safe standoff distance. Traditional image formation, for example, Back-Projection (BP), focuses the image in the slant-plane without considering the refraction of air-soil interface and soil dispersion effects on subsurface landmines. Furthermore, geometric correction has to be performed...
In this paper, we consider landmine detection using ultrawideband synthetic aperture radar, where the two main challenges are feature extraction and discriminator design. The space-wavenumber processing is proposed to retrieve the frequency-and aspect-angle-dependent scattering features of suspected objects. In order to reduce the dimensionality of the input feature vector for a discriminator, the...
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