NDLI: Estimation of frequency domain soil parameters of horizontally multilayered earth by using Cole–Cole model based on the parallel genetic algorithm

Content Provider	IET Digital Library
Author	Li, Zhong Xin Rao, Shao Wei
Abstract	A method to estimate frequency domain soil parameters of horizontally multilayered earth is developed. Cole–Cole model of complex conductivity form is adopted to describe the frequency dependence of soil parameters. The estimation of frequency domain soil parameters includes two stages. In the first stage, soil-layered structure is determined under the DC field by the interpretation of resistivity sounding data. The obtained model parameters in this stage include the DC soil conductivity and thickness of soil layers. In the second stage, Cole–Cole model parameters are estimated based on the soil-layered model obtained in the first stage. The theoretical formula of complex apparent resistivity is derived from Green's function with considering dynamic-state field theory. Since dynamic-state field is considered in the inversion algorithm, this method can be extended into high-frequency domain. Discrete complex image method is used to calculate Sommerfeld integral quickly. In order to remove electromagnetic (EM) coupling between cables at high frequencies, a new electrode configuration method is proposed. Genetic algorithm is improved by combining with parallel computing. The parallel genetic algorithm is applied to the optimisation of model parameters.
Starting Page	1746
Ending Page	1754
Page Count	9
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 9, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.6862
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-02-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cole-Cole Model Parameter Electromagnetic Field Theory Electromagnetic Wave Propagation Frequency Domain Soil Parameter Genetic Algorithm Geoelectricity; Electromagnetic Induction And Conductivity Geophysical Technique And Equipment Green's Function High-frequency Domain Horizontally Multilayered Earth Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Magnetic And Electric Property of Rocks, Minerals And Soil Parallel Genetic Algorithm Soil Soil-layered Model Soil-layered Structure Terrestrial Electricity
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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