VB-SAR For Remote Stand-off Subsurface Imaging: First Demonstration
Conference: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06/06/2016 - 06/09/2016 at Hamburg, Germany
Proceedings: EUSAR 2016
Pages: 4Language: englishTyp: PDF
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Authors:
Edwards-Smith, Alexander (Centre for Electronic Warfare, Cranfield University, Defence Academy of the United Kingdom, Shrivenham, Swindon, SN6 8LA, UK)
Morrison, Keith (Centre for Electronic Warfare, Cranfield University, UK)
Abstract:
The first experimental demonstration of the Virtual Bandwidth SAR (VB-SAR) scheme is provided. VB-SAR promises high-resolution imaging of subsurface features at large stand-off distances. This study collected a stack of C-band tomographic profiles of the backscattering through a soil as it dried. With 1m vertical resolution, a buried trihedral at a depth of 0.26m was inseparable from the soil returns, namely the surface return. Using the differing phase behaviours from the scene during drying, it was possible to separate soil and trihedral returns, and the 10cm resolution is much improved on the formal resolution offered by the real bandwidth.