Nonlinear spectral correction of the pulse GPR signals
Abstract
Background: The problems of non-destructive testing of industrial structures and transport structures are relevant from the point of view of increasing the efficiency of their control systems and saving financial resources and materials. The relevance of scientific research in the field of remote sensing and methods for solving inverse problems is also associated with the prospects for the formulation and solution of biomedicine problems associated with computer technology.
Objectives of the work is to study the possibilities of virtual adjustment of the properties of probing and reflected signals to increase the reliability of processing results and increase the accuracy of restoration of the properties of objects when solving thickness measurement problems.
Materials and methods: The basis of the proposed approach is the correction of the amplitudes of pulse signals in order to increase the accuracy of the values obtained as a result of processing by introducing a normalizing factor into the processing algorithm, the value of which would be a function obtained as a result of GPR calibration procedures. Another way to increase the reliability of the data processing procedure may be by computer correction of the waveform to approximate its shape to the shape of an idealized model pulse.
Results: As a result of theoretical analysis, methods and algorithms for implementing the procedure for improving the processing of sets of primary sensing data obtained using pulsed georadars were proposed.
Conclusion: The analysis of the methods for processing and adjusting the characteristics of pulsed ground-penetrating radar signals made it possible on the one hand to better understand the physical basis for the interaction of electromagnetic pulses with plane-layered media. On the other hand, practical methods of improving the quality control of various engineering and transport structures, as well as building structures, are proposed.
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References
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Citations
Application of georadars for detecting subsurface defects in layers of non-rigid road pavements
(2020) Visnyk of V.N. Karazin Kharkiv National University, series “Radio Physics and Electronics”
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