探地雷达散射矩阵在估算地下管线方位角的应用

陈筠; 池昌峰; 徐东升; 梁风

doi:10.11932/karst20200105

探地雷达散射矩阵在估算地下管线方位角的应用

doi: 10.11932/karst20200105

1.
贵州理工学院，贵阳 550003
2.
湖南华侨城文旅投资有限公司，湖南衡阳 421000
3.
重庆市建筑科学研究院，重庆 400016
4.
贵州大学资源与环境工程学院，贵阳 550025

基金项目: 贵州省国土资源厅重大专项(992011010003)

计量
- 文章访问数: 1864
- HTML浏览量: 606
- PDF下载量: 426
- 被引次数: 0
出版历程
- 发布日期: 2020-02-25

Application of GPR scattering matrix to estimating azimuths of underground pipelines

1.
Guizhou Institute of Technology, Guiyang，Guizhou 550003, China
2.
OCT Cultural & Travel Investment Co., Ltd., Hengyang，Hunan 421000, China
3.
Chongqing Construction Science Research Institute, Chongqing 400016, China
4.
Resources and Environmental Engineering College, Guizhou University, Guiyang，Guizhou 550025, China

摘要

摘要: 文章分析了探地雷达与电磁场的入射和散射相关的散射矩阵S的性质，散射矩阵中的四个元素提供了入射波场不同极化方向对应的信息，基于此，利用散射矩阵S的Alford旋转，估算细长目标体的方位角。由于低振幅和噪声等缘故，实际上角度的估算是一个不稳定的过程，因此，选择使用范数作为筛选最佳振幅的工具，使角度的估算更加准确和稳定。利用埋在均匀半空间内的金属管的三维模型所得到的模拟数据，对该方法进行了测试，在选择合适的振幅时，确定Frobenius范数‖S‖F≥0.1·‖S‖F(max)的标准，结果表明，估算地下管线方位角的方法是有效的。
- 地质雷达 /
- 散射矩阵 /
- 极化 /
- Alford旋转
Abstract: This paper analyzes the properties of the scattering matrix S related to the incidence and scattering of ground penetrating radar and electromagnetic field. The four elements in the scattering matrix provide information corresponding to different polarization directions of the incident wave field. Based on this, the Alford rotates of scattering matrix S is used. to estimate the azimuth of the elongated target. Due to low amplitude and noise, the estimation of the angle is actually an unstable process. Therefore, the use of norm as a tool for screening the optimal amplitude is chosen to make the estimation of the angle more accurate and stable. The method is tested by using the simulation data obtained from the three-dimensional model of the metal tube buried in the uniform half space. When selecting the appropriate amplitude, the Frobenius norm ‖S‖F≥0.1?‖S‖F(max) is determined. The results show that the method of estimating the azimuth of the underground pipeline is effective.
- GPR /
- scattering matrix /
- polarizations /
- Alford rotation

HTML

参考文献(23)

[1]	Davis J L, Annan, A P. Ground-penetrating radar for high-resolution mapping of soil and rock stratigraphy［J］. Geophysical prospecting, 1989, 37(5): 531-551.
[2]	Van Gestel J P, Stoffa P L. Application of Alford rotation to ground-penetrating radar data［J］. Geophysics, 2001, 66(6): 1781-1792.
[3]	Radzevicius S J, Daniels J J. Ground penetrating radar polarization and scattering from cylinders［J］. Journal of Applied Geophysics, 2000, 45(2): 111-125.
[4]	徐建东,陈超纲.探地雷达收发天线极化方向变化对其电磁波响应的影响［J］. 公路工程, 2007(6): 137-140.
[5]	李丽丽,冯晅,鹿琪,等.极化步频探地雷达系统初步研究［J］. 吉林大学学报(地球科学版), 2008, 38(S1): 150-152.
[6]	Tsoflias G P, Perll C, Baker M, et al. Cross-polarized GPR imaging of fracture flow channeling［J］. Journal of Earth Science, 2015, 26(6): 776-784.
[7]	梁文婧,冯晅,刘财,等. 多输入多输出极化步进频率探地雷达硬件系统开发［J］. 吉林大学学报(地球科学版), 2018, 48(02): 483-490.
[8]	Sassen D S, Everett M E. 3D polarimetric GPR coherency attributes and full-waveform inversion of transmission data for characterizing fractured rock［J］. Geophysics, 2009, 74(3): J23-J34.
[9]	Daniels J J, Wielopolski L, Radzevicius S, et al. 3D GPR polarization analysis for imaging complex objects［C］//Symposium on the Application of Geophysics to Engineering and Environmental Problems 2003. Society of Exploration Geophysicists, 2003: 585-597.
[10]	冯晅, 邹立龙, 刘财, 等. 全极化探地雷达正演模拟［J］. 地球物理学报, 2011, 54(2): 349-357.
[11]	Villela A, Romo J M. Invariant properties and rotation transformations of the GPR scattering matrix［J］. Journal of Applied Geophysics, 2013, 90: 71-81.
[12]	Chen C C, Higgins M B, O'Neill K, et al. Ultrawide-bandwidth fully-polarimetric ground penetrating radar classification of subsurface unexploded ordnance［J］. IEEE Transactions on Geoscience and Remote Sensing, 2001, 39(6): 1221-1230.
[13]	Sun K, O'Neill K, Chen C C, et al. Highly contaminated UXO sites: combination of GPR and EMI for discrimination of clustered scatterers［C］//Symposium on the Application of Geophysics to Engineering and Environmental Problems 2005. Society of Exploration Geophysicists, 2005: 1156-1165.
[14]	Yu Y, Chen C C, Feng X, et al. Modified Entropy-Based Fully Polarimetric Target Classification Method for Ground Penetrating Radars (GPR)［J］. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017, 10(10): 4304-4312.
[15]	冯晅, 梁帅帅, 恩和得力海, 等. 全极化探地雷达地下管道分类识别技术［J］.吉林大学学报(地球科学版), 2018, 48(2): 364-372.
[16]	方建立, 应松, 贾进. 地质雷达在公路隧道超前地质预报中的应用［J］. 中国岩溶, 2005，24(2): 160-163.
[17]	李瑜, 朱平, 雷明堂, 等. 岩溶地面塌陷监测技术与方法［J］.中国岩溶, 2005，24(2): 103-108.
[18]	张辉旭, 王小烈, 王红才, 等.北京千灵山生态修复边坡稳定性研究［J］. 中国岩溶, 2013, 32(4): 404-410.
[19]	李俊杰, 朱红雷, 赵国军, 等. 地质雷达电磁干扰分析及在隧洞岩溶探测中的应用［J］. 中国岩溶, 2018, 37(2): 286-293.
[20]	贾龙, 蒙彦, 潘宗源,等. 钻孔雷达反射成像在岩溶发育场地探测中的应用［J］. 中国岩溶, 2019, 38(1): 124-129.
[21]	Alford R M. Shear data in the presence of azimuthal anisotropy: Dilley, Texas［M］//SEG Technical Program Expanded Abstracts 1986. Society of Exploration Geophysicists, 1986: 476-479.
[22]	Thomsen L. Reflection seismology over azimuthally anisotropic media［J］. Geophysics, 1988, 53(3): 304-313.
[23]	Warren C, Giannopoulos A, Giannakis I. gprMax: Open source software to simulate electromagnetic wave propagation for Ground Penetrating Radar［J］. Computer Physics Communications, 2016, 209: 163-170.