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

Valagiannopoulos, CA; Uzunoglu, NK

dc.contributor.author	Valagiannopoulos, CA	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:37:04Z
dc.date.available	2014-03-01T01:37:04Z
dc.date.issued	2011	en
dc.identifier.issn	1751-8725	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21437
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Discretisation	en
dc.subject.other	Ground field	en
dc.subject.other	Incident fields	en
dc.subject.other	Inhomogeneities	en
dc.subject.other	Inhomogeneous dielectrics	en
dc.subject.other	Inverse scattering	en
dc.subject.other	Inverse scattering problems	en
dc.subject.other	Ionospheric heights	en
dc.subject.other	Mode matching technique	en
dc.subject.other	Permittivity profiles	en
dc.subject.other	Prediction errors	en
dc.subject.other	Problem parameters	en
dc.subject.other	Scattering integral	en
dc.subject.other	Simplified models	en
dc.subject.other	Green's function	en
dc.subject.other	Inverse problems	en
dc.subject.other	Scattering	en
dc.title	Simplified model for EM inverse scattering by longitudinal subterranean inhomogeneities exploiting the dawn/dusk ionospheric ridge	en
heal.type	journalArticle	en
heal.identifier.primary	10.1049/iet-map.2010.0147	en
heal.identifier.secondary	http://dx.doi.org/10.1049/iet-map.2010.0147	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	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 function of the problem parameters in various graphs and the technique's robustness against inaccurate guesses has been tested.© 2011 The Institution of Engineering and Technology.	en
heal.publisher	INST ENGINEERING TECHNOLOGY-IET	en
heal.journalName	IET Microwaves, Antennas and Propagation	en
dc.identifier.doi	10.1049/iet-map.2010.0147	en
dc.identifier.isi	ISI:000294549500008	en
dc.identifier.volume	5	en
dc.identifier.issue	11	en
dc.identifier.spage	1319	en
dc.identifier.epage	1327	en