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Title: Zero source insertion technique to account for undersampling in GPR imaging

Abstract

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.

Inventors:
; ;
Issue Date:
Research Org.:
LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1125013
Patent Number(s):
8,659,467
Application Number:
13/219,504
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Aug 26
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Chambers, David H, Mast, Jeffrey E, and Paglieroni, David W. Zero source insertion technique to account for undersampling in GPR imaging. United States: N. p., 2014. Web.
Chambers, David H, Mast, Jeffrey E, & Paglieroni, David W. Zero source insertion technique to account for undersampling in GPR imaging. United States.
Chambers, David H, Mast, Jeffrey E, and Paglieroni, David W. Tue . "Zero source insertion technique to account for undersampling in GPR imaging". United States. https://www.osti.gov/servlets/purl/1125013.
@article{osti_1125013,
title = {Zero source insertion technique to account for undersampling in GPR imaging},
author = {Chambers, David H and Mast, Jeffrey E and Paglieroni, David W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {2}
}

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Works referenced in this record:

Eigenmodes of the time reversal operator: A solution to selective focusing in multiple-target media
journal, September 1994