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.
| Original language | English |
|---|---|
| Pages (from-to) | 1319-1327 |
| Number of pages | 9 |
| Journal | IET Microwaves, Antennas and Propagation |
| Volume | 5 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Aug 19 2011 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Simplified model for EM inverse scattering by longitudinal subterranean inhomogeneities exploiting the dawn/dusk ionospheric ridge. / Valagiannopoulos, C. A.; Uzunoglu, N. K.
In: IET Microwaves, Antennas and Propagation, Vol. 5, No. 11, 19.08.2011, p. 1319-1327.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simplified model for EM inverse scattering by longitudinal subterranean inhomogeneities exploiting the dawn/dusk ionospheric ridge
AU - Valagiannopoulos, C. A.
AU - Uzunoglu, N. K.
PY - 2011/8/19
Y1 - 2011/8/19
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=80052471172&partnerID=8YFLogxK
U2 - 10.1049/iet-map.2010.0147
DO - 10.1049/iet-map.2010.0147
M3 - Article
AN - SCOPUS:80052471172
VL - 5
SP - 1319
EP - 1327
JO - IET Microwaves, Antennas and Propagation
JF - IET Microwaves, Antennas and Propagation
SN - 1751-8725
IS - 11
ER -