Zobrazeno 1 - 10 of 30 pro vyhledávání: '"Robert E. Bracken"'
3
Reducing tensor magnetic gradiometer data for unexploded ordnance detection
Autor: Robert E. Bracken, Philip J. Brown
Publikováno v: Scientific Investigations Report.
Robert E. Bracken and Philip J. Brown of the US Geological Survey describe ongoing work on a tensor magnetic gradiometer system being designed for use in the detection of buried unexploded ordnance.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72c2c1ac4499af2d382da49391330028
https://doi.org/10.3133/sir20055046
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5
The inverse of winnowing: a FORTRAN subroutine and discussion of unwinnowing discrete data
Autor: Robert E. Bracken
Publikováno v: Open-File Report.
3 Introduction 4 A Basic Winnowing Process 5 The Basic Unwinnowing Process 7 Data Stream Preparation 9 Description of the Unwinnowing Subroutine 12 Generalizing the Unwinnowing Algorithm 12 References Cited 13 Appendix A Brief Descriptions of Subrout
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b5093bcdfa86140a32cc90307222363
https://doi.org/10.3133/ofr03229
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6
Field experiments with the tensor magnetic gradiometer system for UXO surveys: a case history
Autor: Robert E. Bracken, David V. Smith
Publikováno v: SEG Technical Program Expanded Abstracts 2004.
Summary: In March, 2003, the U.S. Geological Survey (USGS) conducted proof-of-principle tests of the tensor magnetic gradiometer system (TMGS) at the Strategic Environmental Research and Development Program’s (SERDP) Unexploded Ordnance (UXO) Stand
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8ae46ca25f318e94549c47f02ec5e7d
https://doi.org/10.1190/1.1851324
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7
FFTDC2: a one-dimensional Fourier transform with forward and inverse data conditioning for non-complex data
Autor: Robert E. Bracken
Publikováno v: Open-File Report.
3 Introduction 4 Description of FFTDC2.F 5 Conventions and Constraints 5 Arithmetic 5 Definition of the Forward and Inverse Transform 5 Scale Factor 5 Data Requirements 6 Time-Domain Restricted to a Real Array 6 Frequency Domain in a Complex Array 6
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be8b5c17c1eba2d0c79ac8e5217c5990
https://doi.org/10.3133/ofr03228
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8
A case study of magnetic gradient tensor invariants applied to the UXO problem
Autor: David V. Smith, Philip J. Brown, Robert E. Bracken
Publikováno v: SEG Technical Program Expanded Abstracts 2004.
Summary: Data were gathered at the Yuma Proving Ground (YPG) to demonstrate the effectiveness of the Tensor Magnetic Gradiometer System (TMGS) for the detection of buried unexploded ordnance (UXO). After a rigorous reduction of the TMGS data, the mag
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::927a9fa2efd4039900a1ce2434cb3669
https://doi.org/10.1190/1.1851321
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10
Laboratory Evaluation of Three Prototype Geophysical Instruments for UXO Applications
Autor: Erin L. Wallin, Craig W. Moulton, Philip J. Brown, David L. Wright, Yaoguo Li, Misac N. Nabighian, S. Raymond Hutton, Carl E. Stoddard, David V. Smith, John D. Kibler, Robert E. Bracken
Publikováno v: Symposium on the Application of Geophysics to Engineering and Environmental Problems 2003.
The Very Early Time Electromagnetic (VETEM) system, the High-Frequency Sounder (HFS), and the Tensor Magnetic Gradiometer System (TMGS) were developed by the U.S. Geological Survey (USGS) for applications other than unexploded ordnance (UXO). However
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81a787725237608f0673fc9c147fa139
https://doi.org/10.4133/1.2923151
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