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Human being detection in post-disaster scenarios using UWB radars relies on detection of slight variations in time-of-arrival of the backscattered response due to human breathing motion. In this study we investigate experimentally the human breathing cross-section (BCS) in the UWB frequency band as function of aspect angle for three positions of the body and three combinations of antenna-pair polarization...
In this paper, integration of an UWB array-based time-domain radar sensor in a vehicle-mounted multi-sensor system for landmine detection is described. Dedicated real-time signal processing algorithms are developed to compute the radar sensor confidence map which is used for sensor fusion. Performance of developed algorithms for stand-alone GPR sensor and multi-sensor suit is verified experimentally.
The present work reports the results of laboratory measurements of the real part of dielectric permittivity epsiv' and dielectric loss tangent tg(delta) of sandy and clayey soils as a function of soil moisture (X) uniformly distributed throughout the volume and of electromagnetic field frequency. Also, the theoretical research of the dependence the reflected signal shape on the humidity profile was...
The automated detection of plastic-cased antipersonnel landmines in 3-D high-resolution UWB radar images is considered. The 3-D images are projected in different ways onto 2-D confidence maps, in which the automated APM detection is made by marking local maxima in the maps followed by thresholding. Specifically, we consider the confidence maps of the following types: energy projection (EP), windowed...
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