Accessibility navigation


Virtual bandwith SAR (VB-SAR) for centimeter-scale vertical profiling through a soil at C-band from space

Morrison, K. ORCID: https://orcid.org/0000-0002-8075-0316, Edwards-Smith, A., Zwieback, S. and Hajnsek, I. (2016) Virtual bandwith SAR (VB-SAR) for centimeter-scale vertical profiling through a soil at C-band from space. In: Geoscience and Remote Sensing Symposium (IGARSS), 2016 IEEE International, 10-15 July 2016, Beijing, China, pp. 7419-7422, https://doi.org/10.1109/IGARSS.2016.7730935.

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1109/IGARSS.2016.7730935

Abstract/Summary

The first experimental demonstration of the Virtual Bandwidth SAR (VB-SAR) scheme is provided. VB-SAR is a new technique that promises subsurface imaging of soils at ultra-high, centimeter-scale resolution at large stand-off distances applicable to aircraft and spacecraft. This paper reports on how a stack of C-band images were used to retrieve high resolution vertical profiles of the backscattering through a soil in the laboratory. The VB-SAR scheme captures the phase behavior of a soil across a stack of DInSAR images as the soil dries. The real frequency of the interrogating radar behaves as a higher, virtual frequency within the soil by virtue of its higher-than-air dielectric. As the dielectric changes with time, the DInSAR stack captures a virtual bandwidth. Using this scheme, it was possible to produce a vertical slice of the backscatter through a soil at 10cm resolution, much improved on the formal 1m resolution offered by the real 150MHz bandwidth.

Item Type:Conference or Workshop Item (Paper)
Refereed:No
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:73524

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation