1887

Abstract

Summary

In the paper, on the basis of numerical modeling of the georadiolocation problem, the necessary requirements for the technical characteristics of a georadar for the detection of voids in a subsurface medium are considered. The algorithm used to solve the direct problem of georadiolocation is approximated to the actual experiment by taking into account the construction of the georadar, the source and receiver parameters, their position relative to the medium of research and inhomogeneity in it. Calculations of the spatiotemporal distribution of the field of the detected signal from a pulse source lying on the media interface with a hollow anomaly of a given geometry are presented. Based on these estimates, the dynamic range of the georadar needed to determine it is estimated. Results of georadar studies of low-contrast inhomogeneities in the form of cavities in mines using GROT 12 series georadars and their analysis based on the results of numerical simulation are presented. It is demonstrated that already at the planning stage of the experiment it is possible to estimate the required parameters of the georadar necessary for the detection and localization of the inhomogeneities of interest at a certain depth of sounding.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201800567
2018-04-23
2024-04-23
Loading full text...

Full text loading...

References

  1. MarchukV.N., SekistovV.N., SmirnovV.M., YushkovaO.V.
    Call. monograph "Questions of subsurface radiolocation". Publishing house «Radiotehnika», Moscow, 2005. P. 63–82.
    [Google Scholar]
  2. SommerfeldA.
    Uber die Ausbreitung der Wellen in der drahtlosen Telegraphe. Annalen der Physik. 1909, V28, pp 665–736.
    [Google Scholar]
  3. Uber die Ausbreitung der Wellen in der drahtlosen Telegraphe. Annalen der Physik. 1926, V81, pp 1135–1153.
    [Google Scholar]
  4. Brekhovskikh LM Waves in layered media. Publishing house of the USSR AS. M. 1957. P. 504
    [Google Scholar]
  5. L.B.Volkomirskaya, V.V.Varenkov, G.A.Lyakhov, D.N.Musalev, A.E.Reznikov, E.A.Rudenchik, V.I.Sakhterov
    . Numerical and Natural Experiment on Georadiolocation: Prospects of Applications for Lunar Soil Sensing. //Physics of Wave Phenomena, 2013, Vol. 21, No. 3, pp. 1–17.
    [Google Scholar]
  6. VolkomirskayaL.B., GulevichO.A., VarenkovV.V., SakhterovV.I.
    To the question of the requirements for the technical characteristics of a georadar for the search for cavities by the georadiolocation method. Geology and geophysics. № 4. 2018 (is printed).
    [Google Scholar]
  7. BalabinR.V., VolkomirskayaL.B., GulevichO.A., KrivosheevN.V., LyakhovG.A., MusalevD.N., ReznikovA.E., SafievaR.Z., SemyonovS.N.
    Georadar Sensing from Terrestrial Surface and Shafts: Approaches to Evaluation of Rock Fracturing. // Physics of Wave Phenomena, 2015, Vol. 23, No. 2, pp. 143–153
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201800567
Loading
/content/papers/10.3997/2214-4609.201800567
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error