1887

Abstract

Summary

Ground penetrating radar (GPR) is a very powerful, non-destructive testing tool with a wide range of applications mainly associated with shallow depth exploration. The complexity of the subsurface leads to complicated GPR images and also, attempting to use experimental measurements to assess and simulate complex problems is costly and time consuming and often limited by availability of suitable materials. The latest advances in GPR modelling provide an effective means for assessing GPR responses and now GPR models are becoming fully three-dimensional and sophisticated. Representative models can require large amounts of computer power and memory with very long run times. On the other hand, modern computing capacity is increasing so rapidly that problems previously considered impractical can be modelled for real application projects. One of the trade-offs in numerical modelling is the rational of using point sources and receivers versus full antenna structure simulations since the former require less computer memory and computation time. In this paper, we explore the question: when is a detailed GPR antenna model needed and when do point sources suffice?

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20142097
2014-09-08
2024-04-25
Loading full text...

Full text loading...

References

  1. Diamanti, N. and Annan, A.P.
    [2012] Characterizing the energy distribution around GPR antennas. Journal of Applied Geophysics99, 83–90.
    [Google Scholar]
  2. Giannopoulos, A.
    [2005] Modeling of ground penetrating radar using GprMax. Construction and Building Materials19, 755–762.
    [Google Scholar]
  3. Jol, H.M.
    [2008] Ground Penetrating: Radar Theory and Applications. Elsevier.
    [Google Scholar]
  4. Lampe, B., Holliger, K. and Green, A.G.
    [2003] A finite-difference time-domain simulation tool for ground-penetrating radar antennas. Geophysics68, 971–987.
    [Google Scholar]
  5. PajewskiL., Benedetto, A., Derobert, X., Giannopoulos, A., Loizos, A., Manacorda, G., Marciniak, M., Plati, C., Schettini, G., Trinks, I.
    [2013] Applications of Ground Penetrating Radar in civil engineering — COST action TU1208. 7th International Workshop on Advanced Ground Penetrating Radar (IWAGPR2013), 1–6.
    [Google Scholar]
  6. Redman, J.D., Hans, G., and Diamanti, N.
    [2014] Effect of wood log shape on moisture content measurement using GPR. 15th International Conference on Ground Penetrating Radar (GPR2014).
    [Google Scholar]
  7. Taflove, A.
    [1995] Computational Electrodynamics: The Finite-Difference Time-Domain Method. Artech House.
    [Google Scholar]
  8. Warren, C. and Giannopoulos, A.
    [2011] Creating finite-difference time-domain models of commercial ground-penetrating radar antennas using Taguchi’s optimization method. Geophysics76, G37–G47.
    [Google Scholar]
  9. Yee, K.S.
    [1966] Numerical solution of initial boundary value problems involving Maxwell’s equations in iso-tropic media. IEEE Transactions on Antennas and Propagation14, 302–307.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20142097
Loading
/content/papers/10.3997/2214-4609.20142097
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