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Journal of Applied Sciences >

2015 , Vol. 33 >Issue 1: 41 - 49

DOI: https://doi.org/10.3969/j.issn.0255-8297.2015.01.005

Signal and Information Processing

Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil

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Received date: 2014-12-02

  Revised date: 2014-12-28

  Online published: 2015-01-04

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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.
 

Key words： water content in soil; ground penetrating radar; numerical simulation

Cite this article

LI Hui-jun1,2,3, ZHONG Ruo-fei1,2,3 . Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil[J]. Journal of Applied Sciences, 2015 , 33(1) : 41 -49 . DOI: 10.3969/j.issn.0255-8297.2015.01.005

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