A hybrid full MAS and Combined MAS/TSA Algorithm for Electromagnetic Induction Sensing
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A hybrid full MAS and Combined MAS/TSA Algorithm for Electromagnetic Induction Sensing摘要
Electromagnetic induction (EMI) sensing, in both frequency and time domains, is emerging as one of the most promising remote sensing technologies for detection and discrimination of buried metallic objects, particularly unexploded ordinance (UXO). UXO sites are highly contaminated with metallic clutter so that the major problem is discrimination not detection. This requires high fidelity forward modeling for successful inversion and classification. Recently, the method of auxiliary sources (MAS) has been applied for solving a large range of ultra-wideband (1 Hz- 300 kHz) electromagnetic induction problems [1] - [6]. For a highly conducting and permeable metallic object, when the skin depth becomes small (at high frequency, i.e. induction number >100) the efficiency of the MAS is reduced significantly [6]. Other methods are stressed in this region as well. At the same time the Thin Skin Approximation (TSA) [7] - [9], which is based on the divergence free Maxwell's equation in a thin layer, infinitely close to the boundary interior, has shown very accurate results at high frequency/induction number. In this paper a hybrid algorithm, with standard MAS and also the MAS with TSA, is introduced and applied for solving the electromagnetic induction forward problem. Once the broadband frequency domain (FD) electromagnetic response is found it is translated into time domain (TD) using an inverse Fourier transform specialized for the characteristic TD input form. Numerical experiments are performed for highly conducting and permeable canonical objects, illuminated by a magnetic dipole or a loop antenna. These tests indicate that an algorithm using either the full MAS or MAS-TSA formulation, where appropriate, should provide a simulator that is applicable and efficient enough for fast 3-D solutions on a PC, under all conditions across the EMI band in both frequency and time domains.
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参考
F. Shubitidze, K. O’Neill, S. A. Haider, K. Sun, and K. D.
Paulsen, ”Application of the method of auxiliary sources to the
wideband electromagnetic induction problem ”, IEEE
Transactions on Geoscience and Remote Sensing, Vol: 40 Issue:
, Pages: 928 - 942, April 2002.
F. Shubitidze, K. O’Neill, S. A. Haider, K. Sun, and K.D.
Paulsen, “Analysis of induction responses from metal objects
using the method of auxiliary sources”, Pro ceedings of 6 th
international conference on Mathematical Methods in
Electromagnetic Theory, Pages: 468 - 470, 2000.
F. Shubitidze, K. O’Neill, and K. D. Paulsen “The method of
auxiliary sources for analysis low frequency EM field scattering
from composite objects”. 2001 IEEE Antennas and Propagation
Society International Symposium, Boston MA, Pages:
- 525, July 8-13, 2001.
F. Shubitidze, K. O’Neill, S. A. Haider, and K. D. Paulsen, “The
method of auxiliary sources for analysis of low frequency
electromagnetic induction sensor response” URSI National
Radio Science Meeting, Boulder CO, Page 289, January 8-11,
F. Shubitidze, K. O’Neill, K. Sun, and K. D. Paulsen,
“Investigation of broadband electromagnetic induction
scattering by highly conducting, permeable, arbitrarily shaped 3-
D objects” IEEE Transactions on Geoscience and Remote
Sensing, in press.
F. Shubitidze, K. O’Neill, I. Shamatava, K. Sun, and
K. D. Paulsen, “Implementation of hybrid MAS and SPA
algorithm for broadband electromagnetic induction problems”,
VII-International Workshop on Direct and Inverse Problems of
Electromagnetic and Acoustic Wave Theory (DIPED - 2002) ,
Tbilisi, Georgia, Pages: 33 - 37, October 10-13, 2002.
K. Sun, K. O’Neill, S. A. Haider, and K. D. Paulsen. “Numerical
modeling of electromagnetic induction scattering from target
with small but non-negligible skin depths”. Proceedings of
International Geoscience and Remote Sensing Symposium
Honolulu, Vol. 4 1411 - 1414, July 24-28, 2000.
K. Sun, K. O’Neill, F. Shubitidze, S. A. Haider, and
K. D. Paulsen, “Simulation of electromagnetic induction
scattering from targets with negligible to moderate by primary
fields,” IEEE Transactions on Geoscience and Remote Sensing,,
Vol: 40 Issue: 4, Pages: 910 - 927, April 2002.
K. Sun, K. O’Neill, F. Shubitidze, I. Shamatava, and
K. D. Paulsen. “ Theoretical analysis of TSA formulation and its
domain of validity,” submitted for publication in IEEE
Transactions on Geoscience and Remote Sensing.
A. Krawczyk and J. A. Tegopoulos: “ Numerical Modeling of
Eddy Currents” Oxford science publications 1993.
D. Webster, Aftermath; The Remnants of War, Pantheon,
NY, 1996.
B. Jonson, T. G. Moore, B. J. Blejer, C.F. Lee, T. P. Opar,
S. Ayasli, and C. A. Prommerman, “A Research and
development strategy for unexploded ordinance sensing”,
Lincoln Lab. Project. Rep. Lexington, MA EMP-1, 1996.
C. E Baum, “Detection and Identification of Visually Obscured
Targets," Taylor and Francis 1998.
N. Geng, K. E. Baum, L. Carin. ”On the low frequency natural
responses of conducting and permeable Target.” EEE
Transactions on Geoscience and Remote Sensing, Vol. 37,
Pages: 347 - 359, 1999.
L. Collins, P. Gao, J. Moulton, L. Makowsky, R. Weaver, D
Keiswetter, I. J. Won. “Detection of low metal mines using
frequency domain EMI.” UXO forum 1999, Alexandria,
Virginia May 24, 1999.
K. O’Neill, F. Shubitidze, I. J. Won, and D. Keiswetter, “Use of
ultra-wideband spectroscopy to enhance electromagnetic
induction discrimination”. URSI National Radio Science
Meeting, Boulder CO, Page 293 January 8 - 11, 2001.
J. T. Miller, T. H. Bell, J. Soukup, D. Keiswetter, “Simple
phenomenological models for wideband frequency-domain
electromagnetic induction” IEEE Transactions on Geoscience
and Remote Sensing, Vol: 39 Issue: 6, Pages: 1294 – 1298, June
K. O’Neill, S. Haider, F. Shubitidze, K. Sun, C.O. Ao, H.
Braunisch, and J. A. Kong, “Ultra-wideband electromagnetic
induction spectroscopy”, UXO Forum April 8-11, Florida, 2001.
A. R. Sebak, L. Shafai, and Y.Das, “Near zone fields scattered
by three dimensional highly conducting permeable objects in the
field of an arbitrary loop”, IEEE Transactions on Geoscience
Remote Sensing, Vol. 29. Issue 1, Pages: 9 – 15, January 1991.
ACES JOURNAL, VOL. 19, NO. 1b, MARCH 2004
I. J. Won, D. Keiswetter, T. H. Bell, “Electromagnetic induction
spectroscopy for clearing landmines” IEEE Transactions on
Geoscience Remote Sensing, Vol. 39. Issue 4, Pages: 703 -709,
April 2001.
D. Keiswetter, I. J. Won, B. Barrow, T. H. Bell, “ Object
identification using multi-frequency EMI data”. UXO forum
T. H. Bell, B. Barrow, and N. Khadr, “Shape-based
classification and discrimination of subsurface objects using
electromagnetic induction”, IEEE Transactions on Geoscience
and Remote Sensing, Vol: 39 Issue: 6, Pages: 509 - 513, June
P. Gao, L. Collins, P. Garber, N. Geng, L. Carin “Classification
of landmine like metal targets using wideband electromagnetic
induction ”, IEEE Transactions on Geoscience Remote Sensing,
Vol. 38. Issue 3. Pages: 1352 – 1361, May 2000.
L. Carin, Yu Haitao; Y. Dalichaouch, A. R. Perry, P. V. Czipott,
C. E. Baum “On the wideband EMI response of a rotationally
symmetric permeable and conducting target” IEEE Transactions
on Geoscience and Remote Sensing,, Vol: 39 Issue 6, Pages:
– 1213, June 2001
F. Shubitidze, K. O'Neill, K. Sun, and K. D. Paulsen,
"Classification of scatterer's major axis aspect ratio using
broadband EMI responses” International Union of Radio
Science, National Radio Science Meeting, Page 271, Builder,
Colorado, January, 9 - 12, 2002.
F. Shubitidze, K. O’Neill, K. Sun, and I. Shamatava
”Application of broadband EMI responses to infer buried
object’s aspect ratio”. 2002 IEEE Geoscience and remote
sensing international symposium and 24-th Canadian
symposium on remote sensing, Vol. 3, Pages: 1542 – 1545,
Toronto, Canada, June 24 - 28, 2002.
K. Sun, K. O’Neill, F. Shubitidze, and K. D. Paulsen;
“Treatment of broadband and multi-object electromagnetic
induction scattering using high frequency approximations” 2002
IEEE Geoscience and remote sensing international symposium
and 24-th Canadian symposium on remote sensing, Vol. 3,
Pages: 1546 – 1549, Toronto, Canada, June 24 - 28., 2002.
I. Shamatava, K. O’Neill, F. Shubitidze, K. Sun, and C. Ao,
“Evaluation of Approximate analytical solutions for EMI
scattering from finite objects of different shapes and properties”,
IEEE Geoscience and remote sensing international
symposium and 24-th Canadian symposium on remote sensing,
Vol. 3, Pages: 1549 – 1552, Toronto, Canada, June 24-28., 2002.
L. M. Collins, Y. Zhang, and L. Carin “Model-Based statistical
sensor fusion for unexploded ordnance detection”. 2002 IEEE
Geoscience and remote sensing international symposium and
-th Canadian symposium on remote sensing, Vol. 3, Pages:
–1559, Toronto, Canada, June 24-28., 2002.
F. Shubitidze, K. O’Neill, K. Sun and K.D Paulsen, “ Analysis
of UXO classification capability with the low frequency EMI
sensor responses ”. PIERS’2002 Progress In Electromagnetic
Research Symposium, Page 44, Cambridge, MA, July 1 - 5,
J. R. Wait, “A conducting sphere in a time varying magnetic
field’. Geophysics 16, Pages: 666-672, 1951a.
J. R. Wait and K. P Spies, “Quasi-static transient response of a
conducting and permeable sphere’. Geophysics 34, Pages:
-792, 1969.
S. Ward and G. Hohmann, “Electromagnetic theory for
Geophysical applications” In electromagnetic theory in Applied
Geophysics. Tulsa OK: Soc. Exploration Geophysics, 1987.
H. Braunisch, C.O. Ao, K. O’Neill, and J. A. Kong,
“Magnetoquasistatic response of conducting and permeable
prolate spheroid under axial excitation”. IEEE transactions on
Geoscience and Remote Sensing, Vol: 39 Issue: 12 , Pages:
– 2701, December 2001.
C.O. Ao H. Braunisch, K. O’Neill, J. A. Kong, “Quasi-
magnetostatic solution for a conducting and permeable spheroid
object to arbitrary excitation," Geoscience and Remote Sensing,
IEEE Transactions on, Vol: 40 Issue: 4, Pages: 887 - 897, April
B. E. Barrowes, T. M. Grzegorczyk, J. A. Kong, K. O'Neill.
“Broadband Analytical Solution of the Electromagnetic
Induction (EMI) Response by Spheroidal Objects Under
Arbitrary Excitation”. PIERS-03, Page: 246, Honolulu, Hawaii,
October 13 - 16, 2003.
C. D Moss, K. O’Neill, T. M. Grzegorczyk, and J. A. Kong, “A
hybrid time domain method to calculate electromagnetic
induction scattering from target with arbitrary skin depths”,
Proceedings of 19 th Annual Review of Progress in Applied
Computational Electromagnetics, Pages: 390 - 396, Monterey,
CA, March 24 - 28, 2003.
F. Shubitidze, H. Anastassiu and D. Kaklamani, “An improved
accuracy version of the method of auxiliary sources for
computational electromagnetics” IEEE Transactions on
Antennas and Propagations, in press.
F. Shubitidze, K O’Neill, K. Sun, and I. Shamatava, “Interaction
between highly conducting and permeable metallic objects in the
EMI frequency range,” P Proceedings of 19 th Annual Review of
Progress in Applied Computational Electromagnetics, Pages:
- 631, Monterey, CA, March 24 - 28, 2003.
L. R. Passion and D. W. Oldenburg “Locating and
Characterizing Unexploded Ordinance Using Time Domain
Electromagnetic Induction ”. ERDC/GSL TR-01-40 Technical
report, August 2001.
I. J. Won, D. A Keiswetter, D.R. Hanson, E. Novikova and
T. M. Hall, “GEM-3: a monostatic broadband electromagnetic
induction sensor,” Journal Environmental and Engineering
Geophysics, Vol. 2, Issue 1, Pages: 53 - 64, 1997.
W. C. Chew, J. M. Jin, E. Michielssen, J. Song, ’Fast and
Efficient Algorithms in Computational Electromagnetic ’ Artech
House, 2001.
F. Shubitidze, K. O’Neill, K. Sun, I. Shamatava and K. D.
Paulsen. ”Semi-analytical calculation of Jacobian in the
electromagnetic inverse scattering problem,” IEEE Antennas
and Propagation Society International Symposium,
Pages: 543 - 546 Columbus, OH, June 22-27, 2003
