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| Research on the Numerical Simulation and Imaging of GPR Based on the FDTD |
| FENG Yan—qian1，WANG Yin1，LIU Si—xin2 |
| 1．The Third Railway Survey and Design Institute Group Corporation，Tianjin 300251，China；2．Jilin University，Changchun，Jilin 130026，China |
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Abstract Research purposes: The exploration of GPR is influenced by the conditions of weather，site，economy and SO on and using FDTD to simulate the mechanism of GPR call overcome the influences，lave cost，improve exploration efficiency and data collecting quality and provide the guidance for the positive simulation of the GPR．Migration imaging is one of the most important methods of the data processing．It can set the every reflection point to the real position and obtain the actual image that could reflect the underground medium．
Research conclusions: The abnormity of pipelines is obtained from the common offset profile by making simulation for the detection of underground pipelines．The result shows that using FDTD to simulate the mechanism of GPR is feasible． The actual positions of the underground pipelines ale known by using migration imaging．The result shows that migration imaging could make the object back to the original position and obtain underground actual image with high transverse resolution．
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Received: 03 April 2009
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[1] Antonis Giannopoulos.Modelling ground penetrating radarby GprMax[J]. Construction and Building Materials, 2005: 755 -762.
[2] James Irving, Rosemary Knigh.t Numerical modeling of ground -penetrating radar in 2 -D using MATLAB.Comput- ers and Geosciences, 2006: 1247 -1258.
[3] 薛晓春,王雪华.隐身与反隐身技术的发展研究[J].现 代防御技术, 2004, 32(2): 60 -65.
[4] 郑海山.地震偏移技术研究进展[J].世界地质, 2000, 19 (4): 392 -401.
[5] 薛桂霞,刘秀娟,邓世坤.雷达波偏移方法研究[J].地 球物理学进展, 2004, 19(4): 903 -908.
[6] 何樵登,熊维纲.应用地球物理教程)))地震勘探[M ]. 长春:吉林大学出版社, 2004.
[7] 曾昭发,刘四新,等.探地雷达方法原理及应用[M ].北 京:科学出版社, 2006.
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2009, Vol. 26 
