Publication Details

Reference Category Conference contributions
DOI / URL link
Title (Primary) Dielectric spectra reconstruction of layered multi-phase soil
Title (Secondary) Proceedings; 2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA), Lublin, Poland, 4-7 June 2018
Author Schmidt, F.; Wagner, N.; Mai, J.; Lünenschloß, P.; Töpfer, H.; Bumberger, J.
Publisher Skierucha, W.
Year 2018
Department CHS; MET
Page From 106
Page To 109
Language englisch
Keywords Dielectric measurements, Soil measurements, Electromagnetic scattering inverse problems
Abstract

A broadband soil dielectric spectra retrieval approach (1 MHz to 2 GHz) has been implemented for a layered half space. The inversion kernel consists of a two port transmission line forward model in the frequency domain and a constitutive material equation based of a power law soil mixture rule (Complex Refractive Index Model - CRIM) considering (i) the volume fractions of the soil phases, (ii) dielectric relaxation of the aqueous pore solution, (iii) electrical losses and (iv) low frequency dispersion due to the interactions between the pore solution and solid particles. The spatially distributed reconstruction of broadband dielectric spectra is achieved with a global optimization approach based on a Shuffled Complex Evolution (SCE) algorithm using the full set of the scattering parameter. The possibilities and limitations of the inverse parameter estimation were numerically analyzed.

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=20770
Schmidt, F., Wagner, N., Mai, J., Lünenschloß, P., Töpfer, H., Bumberger, J. (2018):
Dielectric spectra reconstruction of layered multi-phase soil
In: Skierucha, W. (ed.)
Proceedings; 2018 12th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA), Lublin, Poland, 4-7 June 2018
Institute of Electrical and Electronics Engineers (IEEE), New York, NY, p. 106 - 109