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An electromagnetic induction method for underground target detection and characterization

Description: An improved capability for subsurface structure detection is needed to support military and nonproliferation requirements for inspection and for surveillance of activities of threatening nations. As part of the DOE/NN-20 program to apply geophysical methods to detect and characterize underground facilities, Sandia National Laboratories (SNL) initiated an electromagnetic induction (EMI) project to evaluate low frequency electromagnetic (EM) techniques for subsurface structure detection. Low freq… more
Date: January 1, 1997
Creator: Bartel, L. C. & Cress, D. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fusion of LADAR with SAR for precision strike

Description: This paper presents a concept for fusing 3-dimensional image reconnaissance data with LADAR imagery for aim point refinement. The approach is applicable to fixed or quasi-fixed targets. Quasi-fixed targets are targets that are not expected to be moved between the time of reconnaissance and the time of target engagement. The 3-dimensional image data is presumed to come from standoff reconnaissance assets tens to hundreds of kilometers from the target area or acquisitions prior to hostilities. Ex… more
Date: March 1, 1995
Creator: Cress, D.H. & Muguira, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Imaging targets embedded in a lossy half space with Synthetic Aperture Radar

Description: This paper addresses theoretical aspects of forming images from an airborne Synthetic Aperture Radar (SAR) of targets buried below the earth`s surface. Soil is generally a lossy, dispersive medium, with wide ranging variability in these attributes depending on soil type, moisture content, and a host of other physical properties. Focussing a SAR subsurface image presents new dimensions of complexity relative to its surface-image counterpart, even when the soil`s properties are known. This paper … more
Date: May 1, 1994
Creator: Doerry, A. W.; Brock, B. C.; Boverie, B. & Cress, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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