Simplified model for EM inverse scattering by longitudinal subterranean inhomogeneities exploiting the dawn/dusk ionospheric ridge

It is well known that the ionospheric height varies substantially during the transition from day to night and vice versa; the same happens for the field on both sides of the discontinuity. The moving ionospheric ridge is employed to develop a method treating the inverse scattering problem for a buri...

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Bibliographic Details
Published inIET microwaves, antennas & propagation Vol. 5; no. 11; pp. 1319 - 1327
Main Authors VALAGIANNOPOULOS, C. A, UZUNOGLU, N. K
Format Journal Article
LanguageEnglish
Published Stevenage Institution of Engineering and Technology 19.08.2011
The Institution of Engineering & Technology
Subjects
Applied classical electromagnetism
Applied sciences
Diffraction, scattering, reflection
Electromagnetic wave propagation, radiowave propagation
Electromagnetism; electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Grounds
Integrals
Inverse scattering
Ionospherics
Microwave antennas
Obstacles
Physics
Radiocommunications
Radiowave propagation
Ridges
Subterranean
Telecommunications
Telecommunications and information theory
Electromagnetic wave scattering
Heterogeneity
Electromagnetic wave propagation
Discretization
Inverse scattering method
Robustness
Permittivity
Green function
Implementation
Ionosphere
Mode matching method
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Summary:It is well known that the ionospheric height varies substantially during the transition from day to night and vice versa; the same happens for the field on both sides of the discontinuity. The moving ionospheric ridge is employed to develop a method treating the inverse scattering problem for a buried inhomogeneous dielectric strip, based on accurate ground field measurements. The incident field and Green's function are determined with the use of spectral integrals and the implementation of a mode-matching technique. The effect of a subterranean obstacle is evaluated via scattering integral discretisation, which leads to a guess about its permittivity profile. The prediction error of the proposed method is represented as a fimction of the problem parameters in various graphs and the technique's robustness against inaccurate guesses has been tested.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1751-8725
1751-8733
DOI:10.1049/iet-map.2010.0147