Improving GPR Signal Modelling for Efficient Characterization of Multi-layered Media

被引:0
|
作者
Maiti, S. [1 ]
Patra, S. K. [1 ]
Bhattacharya, A. [2 ]
机构
[1] NIT, Dept ECE, Rourkela 769008, Odisha, India
[2] IIT Kharagpur, Dept E&ECE, Kharagpur 721302, W Bengal, India
来源
PROCEEDINGS OF 2016 16TH INTERNATIONAL CONFERENCE ON GROUND PENETRATING RADAR (GPR) | 2016年
关键词
Ground penetrating radar (GPR); Green's function; inverse modelling; SFCW radar; layered media;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We propose a plane wave model (PWM) which is derived based on analytical solution of a full wave model (FWM) applied to ground penetrating radar (GPR) signal propagation in layered media. The computation efficiency of PWM is enormous, and accuracy is comparable to FWMs. In this model, reflections from different interfaces and their higher order terms are expressed separately resulting in infinite number of terms for the forward model computation. The mathematical expression of PWM becomes complicated as the number of layers increases, and higher order reflections are considered fir better accuracy of the model It is observed that by applying suitable time window and limiting order of reflections based on GPR system dynamic range, the PWM expression can be simplified to a great extent. The effectiveness of the proposed method is verified by inverting synthetic data of a three layered (3L) media.
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页数:6
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