FEATURES OF OBTAINING GEOELECTRIC CHARACTERISTICS OF THE ENVIRONMENT IN AN EXPERIMENTAL ELECTRICAL PROSPECTING COMPLEX WITH PSEUDONOISE SIGNALS
https://doi.org/10.5800/GT-2025-16-2-0820
EDN: NUFKJW
Abstract
The article considers the methodology of obtaining geoelectric characteristics of the medium for the experimental electrical exploration complex with pseudonoise signals intended for studying modern geodynamic processes occurring in the lithosphere of the Northern Tien Shan, taking into account the features of its hardware and software implementation. The influence of instability of the amplitude of probing current pulses on the transient curve is considered when the probing setup is powered by batteries. A technique is proposed for accounting for changes in current in the probing frame, which allows for additional improvement of the signal-to-noise ratio in the obtained probing curves. Based on the works of V.A. Sidorov and M.S. Zhdanov, variants of an approximate solution to the inverse problem of Transient Electromagnetics Method (TEM) are shown, implemented in the software of the electrical exploration complex. A technique for improving the method for solving the inverse problem of TEM within the framework of a model with a conducting S plane is considered, which allows for increasing the reliability of the results.
Keywords
electrical exploration,
pseudonoise signals,
correlation signal processing,
transient electromagnetic method,
measuring complex
Supporting agencies: The study was carried out on the state assignment of the Research Station RAS (project No. FMUG-2022-0007, "Study of geophysical fields and processes as a basis for earthquake forecasting based on monitoring and modeling of inelastic processes in seismogenic environments").
About the Authors
V. V. Bobrovsky
Research Station
Kyrgyzstan
Kyrgyzstan
Bishkek 720049
P. V. Ilyichev
Research Station
Kyrgyzstan
Kyrgyzstan
Bishkek 720049
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For citations:
Bobrovsky V.V., Ilyichev P.V. FEATURES OF OBTAINING GEOELECTRIC CHARACTERISTICS OF THE ENVIRONMENT IN AN EXPERIMENTAL ELECTRICAL PROSPECTING COMPLEX WITH PSEUDONOISE SIGNALS. Geodynamics & Tectonophysics. 2025;16(2):0820. (In Russ.) https://doi.org/10.5800/GT-2025-16-2-0820. EDN: NUFKJW
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