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Numerical study on the relationship between amplitudes of ground penetrating radar wave and water content in soil

Journal Article


Abstract


  • Water content in soil can be derived from the relation between changes in ground penetrating radar signals and the soil's dielectric constant. Using the finite difference time domain (FDTD) method, a model of layered soil is established to simulate ground penetrating radar electromagnetic waves in the soil. The transmission characteristics of layered soil are analyzed using the model. The results indicate that a functional relation exists between the soil dielectric constant and the amplitude, i.e., the wave amplitude decreases with the increased electric constant. With an indoor soil model, the obtained relationship is verified: the computed water content agrees with the wet sensor data.

Publication Date


  • 2015

Citation


  • Li, H. J., & Hong, R. F. (2015). Numerical study on the relationship between amplitudes of ground penetrating radar wave and water content in soil. Yingyong Kexue Xuebao/Journal of Applied Sciences, 33(1), 41-49. doi:10.3969/j.issn.0255-8297.2015.01.005

Scopus Eid


  • 2-s2.0-84922616641

Web Of Science Accession Number


Start Page


  • 41

End Page


  • 49

Volume


  • 33

Issue


  • 1

Abstract


  • Water content in soil can be derived from the relation between changes in ground penetrating radar signals and the soil's dielectric constant. Using the finite difference time domain (FDTD) method, a model of layered soil is established to simulate ground penetrating radar electromagnetic waves in the soil. The transmission characteristics of layered soil are analyzed using the model. The results indicate that a functional relation exists between the soil dielectric constant and the amplitude, i.e., the wave amplitude decreases with the increased electric constant. With an indoor soil model, the obtained relationship is verified: the computed water content agrees with the wet sensor data.

Publication Date


  • 2015

Citation


  • Li, H. J., & Hong, R. F. (2015). Numerical study on the relationship between amplitudes of ground penetrating radar wave and water content in soil. Yingyong Kexue Xuebao/Journal of Applied Sciences, 33(1), 41-49. doi:10.3969/j.issn.0255-8297.2015.01.005

Scopus Eid


  • 2-s2.0-84922616641

Web Of Science Accession Number


Start Page


  • 41

End Page


  • 49

Volume


  • 33

Issue


  • 1