Electromagnetic imaging of axisymmetric scatterers.
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Authors
Wawrzyniak, Daniel J.
Subjects
Back-propagation
axisymmetric scatterers
finite elememt method
finite element method
FEM
axisymmetric scatterers
finite elememt method
finite element method
FEM
Advisors
Morgan, Michael A.
Date of Issue
1997-06
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Radar cross-section is a key element of low-observability. In order to reduce the cross-section of a particular platform, it may be necessary to determine the induced source distribution on the platform which produces the scattered electromagnetic radiation. Determining the distribution may be possible using a probe to measure fields on or near the outer surface of the object. However, the act of measuring may indeed influence the currents being measured. An alternate method is to back-propagate measurements made at distances beyond the realm of strong influence on the parameters of interest to construct visualizations of the local on-surface radiation contributions. This has been demonstrated for the case of cylindrical geometry. The theory is extended in this thesis to axisymmetric bodies for the special case of rotationally symmetric fields
Type
Thesis
Description
Series/Report No
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Organization
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NPS Report Number
Sponsors
Funder
Format
xii, 98 p.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.