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Locating And Characterizing Unexploded Ordnance Using Time Domain Electromagnetic Induction
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Book Synopsis Locating and Characterizing Unexploded Ordnance Using Time Domain Electromagnetic Induction by :
Download or read book Locating and Characterizing Unexploded Ordnance Using Time Domain Electromagnetic Induction written by and published by . This book was released on 2001 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique for interpreting Time Domain Electromagnetic (TEM) Data was proposed in "Detecting Unexploded Ordnance with Time Domain Electromagnetic Induction" (Pasion, 1999). An approximate forward modeling for the TEM response of compact metallic objects, an inversion for recovering model parameters, and relationships between model parameters and a target's physical parameters were established. These findings were combined to form an algorithm for locating and determining the approximate shape of a buried target
Book Synopsis Evaluation of Airborne Electromagnetic Systems for Detection and Characterization of Unexploded Ordnance (uXo). by :
Download or read book Evaluation of Airborne Electromagnetic Systems for Detection and Characterization of Unexploded Ordnance (uXo). written by and published by . This book was released on 2007 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of past military training and weapons-testing activities, an estimated 6 million hectares (approximately 15 million acres) of U.S. land is potentially contaminated with unexploded ordnance (UXO) and/or weapons testing- and training-related artifacts. Using current technologies, the costs associated with detection, identification, and mapping of this contamination has been estimated to be in the tens of billions of dollars. Current surface-based technologies are generally labor-intensive, slow, and expensive. The Oak Ridge Airborne Geophysical System time-domain electromagnetic (ORAGS-TEM) system is a boom-mounted EM induction system designed for mounting on rigid Kevlar and carbon fiber booms attached to the underside of a Bell 206L Long Ranger helicopter. Rigid booms allow the helicopter to fly closer to the ground, increasing system resolution and permitting precise control of receiver positions, thus allowing more accurate determination of UXO locations. The airborne system is based on a single transmitter coil and two receiver coils mounted on a rigid 12m x 3m rectangular boom structure. Ancillary equipment includes a laser altimeter and a real-time differentially corrected global positioning system (GPS) for navigation and data positioning. This configuration enables operation at a nominal flight altitude of 1 to 3 meters above ground level (AGL). The survey methodology used for this report consisted of parallel lines traversing the areas of interest so that data were collected for each flight line at nominal data spacing. The survey process concludes with data processing, analysis, interpretation, and mapping using commercial software to generate digital images depicting locations and magnitudes of anomalies that may represent UXO.
Book Synopsis Electromagnetic Induction for Improved Target Location and Segregation Using Spatial Point Pattern Analysis with Applications to Historic Battlegrounds and UXO Remediation by : Carl J. Pierce
Download or read book Electromagnetic Induction for Improved Target Location and Segregation Using Spatial Point Pattern Analysis with Applications to Historic Battlegrounds and UXO Remediation written by Carl J. Pierce and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Remediation of unexploded ordnance (UXO) and prioritization of excavation procedures for archaeological artifacts using electromagnetic (EM) induction are studied in this dissertation. Lowering of the false alarm rates that require excavation and artifact excavation prioritization can reduce the costs associated with unnecessary procedures. Data were taken over 5 areas at the San Jacinto Battleground near Houston, Texas, using an EM-63 metal detection instrument. The areas were selected using the archaeological concepts of cultural and natural formation processes applied to what is thought to be areas that were involved in the 1836 Battle of San Jacinto. Innovative use of a Statistical Point Pattern Analysis (PPA) is employed to identify clustering of EM anomalies. The K-function uses point {x, y} data to look for possible clusters in relation to other points in the data set. The clusters once identified using K-function will be further examined for classification and prioritization using the Weighted K-function. The Weighted K-function uses a third variable such as millivolt values or time decay to aid in segregation and prioritization of anomalies present. Once the anomalies of interest are identified, their locations are determined using the Gi-Statistics Technique. The Gi*-Statistic uses the individual Cartesian{x, y} points as origin locations to establish a range of distances to other cluster points in the data set. The segregation and location of anomalies supplied by this analysis will have several benefits. Prioritization of excavations will narrow down what areas should be excavated first. Anomalies of interest can be located to guide excavation procedures within the areas surveyed. Knowing what anomalies are of greater importance than others will help to lower false alarm rates for UXO remediation or for archaeological artifact selection. Knowing significant anomaly location will reduce the number of excavations which will subsequently save time and money. The procedures and analyses presented here are an interdisciplinary compilation of geophysics, archaeology and statistical analysis brought together for the first time to examine problems associated with UXO remediation as well as archaeological artifact selection at historic battlegrounds using electromagnetic data.
Book Synopsis Fast Algorithms for Subsurface Target Locating and Mapping in Unexploded Ordnance Detection by : Yinlin Wang
Download or read book Fast Algorithms for Subsurface Target Locating and Mapping in Unexploded Ordnance Detection written by Yinlin Wang and published by . This book was released on 2015 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unexploded ordnance (UXO) is a worldwide problem, which causes deaths and injuries to people living in post-conflict areas. It also prevents former military training sites from being returned to civilian use before they are properly cleaned. UXO cleaning is both dangerous and expensive. Metal detectors are the most common method used in UXO detection since reliable explosive detecting methods are not available at the current stage. Traditional metal detectors are unable to distinguish between targets of interest (TOI) and non-harzardous metallic clutter. As a result, UXO clean up could end up with about 95% of the digging to be clutter. To overcome this problem, new generation electromagnetic induction systems have recently been developed for subsurface target detection and classification. One of such system is the Time-Domain Electromagnetic Multisensor Towed Array Detection System (TEMTADS), which provides high fidelity EM data for target classification. UXO classification consists of three main steps: 1: Data collection; 2: Data inversion and target parameter extraction; 3: Target discrimination. In this thesis we present TEMTADS data sets inversion and processing approaches for cued (static) and dynamic (moving) measurements. Instead of using traditional matrix inversion and iterative search methods to tackle the highly non-linear problem of target locating, we employ the multiple signal classification (MUSIC) algorithm for fast and accurate estimation of target locations. The MUSIC algorithm is based on the orthogonality between the signal and noise subspaces in the multi static response (MSR) matrix of targets. In general, to identify the boundary between the two subspaces for actual data is a difficult task. To overcome this, joint-diagonalization (JD) is integrated into the processing. Namely, we use JD to estimate the number of sources presenting in a data set and to improve signal-to-noise ratio (SNR). The entire process is automated. Studies are done for test stand and blind data sets. Our results showed that the combined JD-MUSIC algorithm can be used to estimate target locations in near real time. The JD algorithm and Orthonormalized Volume Magnetic Source (ONVMS) model is extended for dynamic TEMTADS anomaly mapping and target picking. The algorithms were tested on data sets collected at live UXO sites in Camp Hale, Colorado. The study shows that JD and ONVMS provide underground target picking and preliminary classification capabilities, if clear background data can be provided. Comparison of inverted parameters between cued and dynamic data suggests that dynamic data can provide generally same value as cued data for classification purpose under good SNR conditions, thus the number of cued measurements needed can be reduced.
Book Synopsis Journal of Environmental & Engineering Geophysics by :
Download or read book Journal of Environmental & Engineering Geophysics written by and published by . This book was released on 2003 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Demonstration of Airborne Electromagnetic Systems for Detection and Characterization of Unexploded Ordnance at the Badlands Bombing Range, South Dakota. Revision 3 by :
Download or read book Demonstration of Airborne Electromagnetic Systems for Detection and Characterization of Unexploded Ordnance at the Badlands Bombing Range, South Dakota. Revision 3 written by and published by . This book was released on 2004 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a set of field tests conducted at Badlands Bombing Range (BBR) in South Dakota in September 2002. The primary goal of the field tests was to evaluate parameters critical to the design of an airborne electromagnetic system capable of detecting a variety of buried ordnance. The resulting system, called ORAGS-TEM, was patterned after the low-flying helicopter magnetic systems under development at ORNL through separate SERDP/ESTCP programs. Thus, the ORAGS-TEM has a frame mounted, multiple sensor design that permits helicopter surveys at altitudes as low as one meter over UXO-contaminated terrain. As with the magnetic systems, GPS and laser altimetry provide precise positioning to within a few tens of centimeters.
Book Synopsis Real-time Processing of Electromagnetic Induction Dynamic Data Using Kalman Filters for Unexploded Ordnance Detection by : Tomasz M. Grzegorczyk
Download or read book Real-time Processing of Electromagnetic Induction Dynamic Data Using Kalman Filters for Unexploded Ordnance Detection written by Tomasz M. Grzegorczyk and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhanced Signal Processing Algorithms for Buried Unexploded Ordnance Detection and Location Estimation with Magnetometer and Electromagnetic Induction Measurements by : Alan J. Witten
Download or read book Enhanced Signal Processing Algorithms for Buried Unexploded Ordnance Detection and Location Estimation with Magnetometer and Electromagnetic Induction Measurements written by Alan J. Witten and published by . This book was released on 1993 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transformational Science and Technology for the Current and Future Force by : John A. Parmentola
Download or read book Transformational Science and Technology for the Current and Future Force written by John A. Parmentola and published by World Scientific Publishing Company. This book was released on 2006 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with a unique opportunity to understand the basic and applied research and technology areas that support applications to enable Transformational capabilities for US Soldiers. The research papers are in line with the theme of the 24th Army Science Conference: "Transformational Science and Technology for the Current and Future Force," emphasizing the critical role of Science and Technology in addressing the significant challenges posed by Global War On Terrorism while simultaneously developing Transformational capabilities for the Future Force.
Book Synopsis A Study of Electromagnetic Induction Systems for the Detection of Unexploded Ordnance by :
Download or read book A Study of Electromagnetic Induction Systems for the Detection of Unexploded Ordnance written by and published by . This book was released on 2008 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Near-surface Geophysics by : Dwain K. Butler
Download or read book Near-surface Geophysics written by Dwain K. Butler and published by SEG Books. This book was released on 2005 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part 1, "fundamentals", includes magnetic and electrical methods, subsurface geophysics, near-surface seismology, electromagnetic induction, and ground-penetrating radar. Part 2, "applications", includes determination of physical properties, multimethod surveys and integrated interpretations, and model-based survey planning, execution, and interpretation.
Book Synopsis Characterization and Quantification of Magnetic Remanence in Unexploded Ordnance by : Whitney Elizabeth Goodrich
Download or read book Characterization and Quantification of Magnetic Remanence in Unexploded Ordnance written by Whitney Elizabeth Goodrich and published by . This book was released on 2007 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Expanded Abstracts with Biographies by :
Download or read book Expanded Abstracts with Biographies written by and published by . This book was released on 2002 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Roads written by and published by . This book was released on 2008 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subsurface Electromagnetic Induction Imaging for Unexploded Ordnance Detection by : Tomasz M. Grzegorczyk
Download or read book Subsurface Electromagnetic Induction Imaging for Unexploded Ordnance Detection written by Tomasz M. Grzegorczyk and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatise on Geophysics written by and published by Elsevier. This book was released on 2015-04-17 with total page 5604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole
Book Synopsis Design and Construction of a Pulsed Electromagnetic Induction System for Unexploded Ordnance Detection and Discrimination by : Kerry Brennan Loyd
Download or read book Design and Construction of a Pulsed Electromagnetic Induction System for Unexploded Ordnance Detection and Discrimination written by Kerry Brennan Loyd and published by . This book was released on 2004 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
