1887

Abstract

Summary

Based on the theoretical and numerical analysis of the interaction of video pulses containing only one or a few field oscillations with material media of different composition including dielectrics and conductors the main differences in their distribution and reflection are given. It is shown that traditional methods for solving Maxwell equations using the separation of variables and Fourier transforms are convenient for describing quasimonochromatic waves with a slowly varying amplitude and phase, but ineffective for the analysis of nonstationary and non-harmonic fields. It is shown that it is necessary to take into account the features of propagation and reflection of video pulses when designing geo-radars in order to achieve the maximum probing depth altogether with the best resolution in a single product. A comparison was made of theoretical conclusions on the propagation of video pulses in the medium and numerical models with experimental data obtained in field experiments using equipment of the GROT 12 model range, which designed taking into account the interaction of powerful video pulses with various natural media.

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/content/papers/10.3997/2214-4609.201901691
2019-04-16
2024-04-28
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References

  1. A.B.Shvartsburg
    “Single-cycle waveforms and non-periodic waves in dispersive media (exactly solvable models)”Phys. Usp.4177–94 (1998)
    [Google Scholar]
  2. V.Belichenko, KoshelevV., PervakovK.
    , “Propagation of Ultrawideband Pulsed Radiation in Conducting Medium”, Ultra-Wideband Short-Pulse Electromagnetics4, eds. HeymanE., MnadelbaumB., ShilohJ., Kluwer Academic/Plenum Publ, 1999, 313–319
    [Google Scholar]
  3. L.Volkomirskaya, O.Gulevich, E.Rudenchik
    , Georadiolocation in media with dispersion. Dependence of the amplitude and shape of the georadar pulse on the dispersion of the medium, LAP (Lambert Academic Publishing)2013г. P. 81. ISBN 978-3-659-35367-3
    [Google Scholar]
  4. L.B.Volkomirskaya, O.A.Gulevich, V.V.Varenkov, V.I.Sahterov
    ., Evaluating the efectiveness of high-resolution electrical prospecting on an example of the gold deposit study // EAGE. Engineering and Mining Geophysics2018. Session: Publication date: 23 April 2018. DOI: 10.3997/2214‑4609.201800566.
    https://doi.org/10.3997/2214-4609.201800566 [Google Scholar]
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