Modeling of the Geodynamic Event Detection in the Near-Surface Subsoil Area Based on the Phase-Measuring Geoelectric Control Method

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Dmitry I. Surzhik, Oleg R. Kuzichkin, Gleb S. Vasilyev, Maxim D. Baknin, Bondarik Ksenya V.

Abstract

The near-surface subsoil area undergoes active changes as a result of antropogenic impact and natural factors. Effective use of geological environment necessitates control of the area, which is complicated by high noise level.  The idea of phase-measuring geoelectric control method is based on tracking the phase changes of geoelectric signals and allows to detect low-level signals indistinguishable by well-known amplitude methods. Block diagram of the two-threshold phasometric control system of the geological environment was shown, as well as its operation principles and mathematic expressions. Matlab Simulink model of the geodynamic event detector circuit was developed. Dynamic mode simulation of the model was done, and the influence of the filter’s parameters on the probability of successful geodynamic detection was estimated. The obtained results confirmed the effectiveness of the proposed approach

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