| 基于裂步Fourier法的探地雷达数值模拟及偏移成像 |
| |
| 引用本文： | 张明财,熊章强,张大洲.基于裂步Fourier法的探地雷达数值模拟及偏移成像[J].物探与化探,2014(1):130-134. |
| |
| 作者姓名： | 张明财 熊章强 张大洲 |
| |
| 作者单位： | [1]中国水电顾问集团西北勘测设计研究院,陕西西安710043 [2]中南大学地球科学与信息物理学院,湖南长沙410083 |
| |
| 基金项目： | 国家自然科学基金（41004047,41274123） |
| |
| 摘 要： | 从电磁场基本理论出发,利用裂步Fourier法推导出了水平层状介质中频率—波数域电场分量的波场外推公式,通过对设计的钢筋展布模型和衬砌厚度模型的数值模拟和偏移成像结果分析可以得出:裂步Fourier法不但可以实现二维非均匀介质中探地雷达正演模拟及偏移成像,而且具有编程易于实现、计算量小的优点。通过工程实例验证,进一步说明了裂步Fourier法偏移成像的有效性和实用性。
|
| 关 键 词： | 探地雷达 裂步Fourier法 数值模拟 偏移成像 |
THE NUMERICAL SIMULATION AND MIGRATION IMAGING OF GROUND-PENETRATING RADAR BASED ON THE SPLIT-STEP FOURIER METHOD |
| |
| ZHANG Ming-cai,XIONG Zhang-qiang,ZHANG Da-zhou.THE NUMERICAL SIMULATION AND MIGRATION IMAGING OF GROUND-PENETRATING RADAR BASED ON THE SPLIT-STEP FOURIER METHOD[J].Geophysical and Geochemical Exploration,2014(1):130-134. |
| |
| Authors: | ZHANG Ming-cai XIONG Zhang-qiang ZHANG Da-zhou |
| |
| Institution: | 1. Institute of Geophysical Exploration, Hydro-China Xibei Engineering Corporation, Xi＇an 710043, China; 2. School of Geosciences and Info-Physics Central South University, Changsha 410083, China) |
| |
| Abstract: | Based on the basic theory of the electromagnetic field, the authors deduced the wave field extrapolation formula of electric field component in horizontally stratified media. By analyzing the results of numerical simulating and migration imaging using the split-step Fourier method with designed reinforced distribution model and lining thickness model, the authors have reached some conclusions. The split-step Fourier method not only can realize the numerical simulation and migration imaging of two-dimensional non-uniform media, but also has advantages of easy programming and small amounts of calculation. Project real data have tested and verified the ef-fectiveness and practicality of migration imaging using the split-step Fourier method. |
| |
| Keywords: | ground-penetrating radar split-step Fourier method numerical simulation migration imaging |
| 本文献已被 CNKI 维普 等数据库收录！ |
