Radar scattering from bodies of revolution using an efficient partial differential equation algorithm
Gordon, Richard Kip
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https://hdl.handle.net/2142/23147
Description
Title
Radar scattering from bodies of revolution using an efficient partial differential equation algorithm
Author(s)
Gordon, Richard Kip
Issue Date
1990
Doctoral Committee Chair(s)
Mittra, Raj
Department of Study
Electrical and Computer Engineering
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
In this thesis, partial differential equation techniques for solving the problem of electromagnetic scattering by a three-dimensional body of revolution are discussed. The unknowns used do not obey the scalar Helmholtz equation. Thus, neither the Mur nor the Bayliss-Turkel boundary condition can be used. Therefore, a boundary condition derived from Wilcox's expansion for the scattered fields is employed. This is done for both finite difference and finite element meshes having either cylindrical or spherical outer boundaries. The question of reformulating the problem in terms of unknowns with relatively slow spatial variation is also considered.
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