1 April 2015 Sand moisture assessment using instantaneous phase information in ground penetrating radar data
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Abstract
In this paper, a method using the instantaneous phase information of the reflection ground penetrating radar (GPR) signal to detect the variation of sand moisture is developed. The moisture changes the permittivity of the medium, which results in different speed when the GPR electromagnetic (EM) wave propagates in the medium. In accordance to this principle, we develop an analytical method to extract GPR reflection signal’s instantaneous phase parameters utilizing Hilbert Transform for sand moisture characterization. For test evaluation, Finite Difference Time Domain (FDTD) numerical simulations using a 3rd party open source program GprMax V2.0, and laboratory experiments on sand samples are conducted using a commercial GPR (2.3 GHz Mala CX) as the data acquisition system.
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Yu Zhang, Dylan Burns, Dryver Huston, Tian Xia, "Sand moisture assessment using instantaneous phase information in ground penetrating radar data", Proc. SPIE 9437, Structural Health Monitoring and Inspection of Advanced Materials, Aerospace, and Civil Infrastructure 2015, 943726 (1 April 2015); doi: 10.1117/12.2083858; https://doi.org/10.1117/12.2083858
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