探地雷达近场三维距离偏移成像算法
Ground Penetrating Radar Near Field 3-D Range Migration Imaging Technique
-
摘要: 在距离偏移算法基础上提出了近场条件下的探地雷达三维成像方法，同时对后向投影钟法进行了讨论。理论分析表明：近场三维距离偏移算法与后向投影算法相比，能在较大程度上减少运算量。利用试验数据对两种算法分别做了成像研究，验证了近场三维距离偏移箅法的正确性及其实时处理能力。
-
关键词:
- 探地雷达; 距离偏移算法; 三维成像
Abstract: Based on range migration imaging technique, this paper investigates ground penetrating radar three dimension imaging algorithm under near field condition, discusses the back propagation algorithm at the same time. Theoretical analysis shows that near field 3-D range migration imaging technique can reduce computational complexity in much degree by contrast with back propagation algorithm. Finally, through processing the experimental data, 3-D images of underground objects are obtained. The results validate the correctness of the near field 3-D range migration imaging algorithm and its capability at the aspect of real time processing. -
ASTM, Standard Guide for Using the Surface Ground Penetrating Radar Method for Subsurface Investigation, Designation, D, 6432-99.[2]Leone G, Pierri R. Nonlinear models in inversion algorithms for tomographic reconstructions, 8th Intl. Conference on Ground Penetrating Radar, Queensland, Australia: SPIE, 2000, Vol. 4084:525-529.[3]张安学,蒋延生,汪文秉.探地雷达频率波数域速度估计和成像方法的实验研究[J].电子学报,2001,29(3):315-317.[4]张安学,蒋延生,汪文秉,王成.探地雷达扫频三维成像方法[J].电波科学学报,2000,15(3):313-316.[5]Juan M. Lopez-Sanchez, Joaquim Fortuny-Guasch. 3-D radar imaging using range migration techniques[J]. IEEE Trans. on Antennas and Propagation, 2000, AP-48(5): 728-737.[6]Weng Cho Chew著,聂在平,柳清伙译.非均匀介质中的场与波[M].北京:电子工业出版社,1992:65-67.[7]詹毅,梁昌洪,方广有.探地雷达回波信号处理中小波变换域滤波方法的研究[J].西安电子科技大学学报,1999,26(3):305-309. -
计量
- 文章访问数: 2262
- HTML全文浏览量: 97
- PDF下载量: 751
- 被引次数: 0
下载:
