Title :
Inverse problem solution of radio-waves scattering on soil by minimization of regularizing functional
Author :
Shibelgut, Alexander A. ; Litvinov, Rudolph V. ; Zadorin, Anatoly S.
Author_Institution :
Radioelectron. & Inf. Protection Dept., Tomsk Univ. of Control Syst. & Radioelectron., Tomsk
Abstract :
To determine an one-dimensional continual permittivity profile of layered medium with a scale of inhomogeneity in 1 cm has been considered a data processing procedure of waves reflection from a half-infinite medium with heterogeneous permittivity that depends on a depth. This procedure is based on the regularizing algorithm minimization of the generalized discrepancy between the measured frequency dependence of the reflection coefficient and its theoretical model. The sum of theoretical dependence of the reflection coefficient from frequency into range 0.4-2 GHz and random error with the uniform law of probability distribution was used as a measured data of the reflection coefficient from a natural soil.
Keywords :
electromagnetic wave scattering; inverse problems; permittivity; radiowave propagation; statistical distributions; algorithm minimization; data processing; frequency 0.4 GHz to 2 GHz; half-infinite medium; heterogeneous permittivity; inverse problem solution; layered medium; one-dimensional continual permittivity profile; probability distribution; radiowave scattering; reflection coefficient; waves reflection; Data processing; Frequency dependence; Frequency measurement; Inverse problems; Minimization methods; Permittivity measurement; Probability distribution; Reflection; Scattering; Soil measurements;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2