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Title: Buried object detection in GPR images

Patent ·
OSTI ID:1130050

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,711,028
Application Number:
13/219,456
OSTI ID:
1130050
Resource Relation:
Patent File Date: 2011 Aug 26
Country of Publication:
United States
Language:
English

References (74)

Automatic position calculating imaging radar with low-cost synthetic aperture sensor for imaging layered media patent August 1998
Ultra wideband ground penetrating radar imaging of heterogeneous solids patent November 1998
Method and apparatus for identifying buried objects using ground penetrating radar patent April 2006
System for processing and recognizing objects in images patent April 2009
Method of envelope detection and image generation patent-application November 2002
System and method for security inspection using microwave imaging patent-application May 2006
System and Method for Inspecting Transportable Items Using Microwave Imaging patent-application September 2006
Spotlight synthetic aperture radar (SAR) system and method for generating a SAR map in real-time using a modified polar format algorithm (PFA) approach patent-application August 2007
Real-Time System for Imaging and Object Detection with a Multistatic GPR Array patent-application April 2013
Distributed Road Assessment System patent-application April 2013
Classification of Subsurface Objects Using Singular Values Derived from Signal Frames patent-application April 2013
Spatially Adaptive Migration Tomography for Multistatic GPR Imaging patent-application April 2013
Spot Restoration for GPR Image Post-Processing patent-application April 2013
Radar Signal Pre-Processing to Suppress Surface Bounce and Multipath patent-application April 2013
Spatially Assisted Down-Track Median Filter for GPR Image Post-Processing patent-application April 2013
Determining Root Correspondence Between Previously and Newly Detected Objects patent-application April 2013
Synthetic Aperture Integration (SAI) Algorithm for SAR Imaging patent-application April 2013
Attribute and Topology Based Change Detection in a Constellation of Previously Detected Objects patent-application April 2013
Comparison of the diffraction stack and time-reversal imaging algorithms applied to short-range UWB scattering data conference September 2007
MUSIC‐Type Electromagnetic Imaging of a Collection of Small Three‐Dimensional Inclusions journal January 2007
A MUSIC Algorithm for Locating Small Inclusions Buried in a Half-Space from the Scattering Amplitude at a Fixed Frequency journal January 2005
Validation of 2d iNverse Scattering Algorithms From Multi-Frequency Experimental Data journal January 2000
Time Reversal Experiments In The Microwave Range: Description Of The Radar And Results journal January 2010
Target Characterization Using Time-Reversal Symmetry Of Wave Propagation journal August 2007
Analysis of the Time-Reversal Operator for a Small Spherical Scatterer in an Electromagnetic Field journal July 2004
Target characterization using decomposition of the time-reversal operator: electromagnetic scattering from small ellipsoids journal October 2006
Time-Reversal Analysis for Scatterer Characterization journal January 2004
Fuzzy-attribute graph with application to Chinese character recognition journal January 1992
Real data microwave imaging and time reversal conference June 2007
Determination of resonance poles of radar targets in narrow frequency bands conference October 2007
A Two-Step Procedure for Characterizing Obstacles Under a Rough Surface From Bistatic Measurements journal September 2007
Multistatic Ground-Penetrating Radar Experiments journal August 2007
Time-domain processing of electromagnetic data for multiple-target detection conference January 2009
Ground Penetrating Radar for Buried Landmine and IED Detection book January 2009
A review of GPR for landmine detection journal September 2006
An assessment of the fundamental performance of GPR against buried landmines conference April 2007
Time reversal imaging of obscured targets from multistatic data journal May 2005
Localization and characterization of two-dimensional targets buried in a cluttered environment journal November 2004
Retrieval of inhomogeneous targets from experimental frequency diversity data journal November 2005
Pre-stack migration applied to GPR for landmine detection journal November 2004
Time-reversed acoustics journal November 2000
Acoustic time-reversal mirrors journal January 2001
Detecting landmines with ground-penetrating radar using feature-based rules, order statistics, and adaptive whitening journal November 2004
Detection of land-mines using ultra-wideband radar data and time–frequency signal analysis journal January 2004
Imaging of dielectric cylinders from experimental stepped-frequency data journal April 2006
Derivation and comparison of SAR and frequency-wavenumber migration within a common inverse scalar wave problem formulation journal June 2006
General convergence results for linear discriminant updates
  • Grove, Adam J.; Littlestone, Nick; Schuurmans, Dale
  • COLT '97 Proceedings of the tenth annual conference on Computational learning theory, p. 171-183 https://doi.org/10.1145/267460.267493
conference January 1997
Multistatic Response Matrix of a 3-D Inclusion in Half Space and MUSIC Imaging journal September 2007
Multistatic Response Matrix of Spherical Scatterers and the Back-Propagation of Singular Fields journal March 2008
UWB Tomographic Radar Imaging of Penetrable and Impenetrable Objects journal February 2009
The Hungarian method for the assignment problem journal March 1955
Optimizing the Area Under a Receiver Operating Characteristic Curve With Application to Landmine Detection journal February 2007
Three-dimensional ground-penetrating radar imaging using synthetic aperture time-domain focusing conference September 1994
DORT method as applied to ultrawideband signals for detection of buried objects journal August 2003
Matching Random Tree Models of Spatio-Temporal Patterns to Tables or Graphs conference April 2007
Eigenmodes of the time reversal operator: A solution to selective focusing in multiple-target media journal September 1994
Reconstruction of buried objects surrounded by small inhomogeneities journal October 2000
3D wavefront image formation for NIITEK GPR conference May 2009
The efficacy of human observation for discrimination and feature identification of targets measured by the NIITEK ground-penetrating radar conference September 2004
Constrained filter optimization for subsurface landmine detection conference May 2006
Application of the LMC algorithm to anomaly detection using the Wichmann/NIITEK ground-penetrating radar conference September 2003
Decomposition of the Time Reversal Operator for Electromagnetic Scattering journal January 1999
Error-Correcting Isomorphisms of Attributed Relational Graphs for Pattern Analysis journal January 1979
Resonances of perfectly conducting wires and bodies of revolution buried in a lossy dispersive half-space journal January 1996
Short-pulse plane-wave scattering from buried perfectly conducting bodies of revolution journal January 1996
A Large-Scale Systematic Evaluation of Algorithms Using Ground-Penetrating Radar for Landmine Detection and Discrimination journal August 2007
Full Time-Domain DORT for Ultrawideband Electromagnetic Fields in Dispersive, Random Inhomogeneous Media journal August 2006
On the Sensitivity of Time-Reversal Imaging Techniques to Model Perturbations journal March 2008
Space–Frequency Ultrawideband Time-Reversal Imaging journal April 2008
Application of feature extraction methods for landmine detection using the Wichmann/Niitek ground-penetrating radar journal January 2005
UWB array-based radar imaging using modified Kirchhoff migration conference September 2008
Three-dimensional ground-penetrating radar imaging using multifrequency diffraction tomography
  • Mast, Jeffrey E.; Johansson, Erik M.
  • SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, SPIE Proceedings https://doi.org/10.1117/12.186716
conference September 1994
D.O.R.T. method as applied to electromagnetic subsurface sensing journal May 2003
Performance of an adaptive feature-based processor for a wideband ground penetrating radar system journal April 2006

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