Ground Penetrating Radar Fast Back Projection Imaging Technique of Targets Located in Two Layered Medium
Lei Wen-tai① Zeng Sheng② Zhao Jian② Liu Jian-xin③
①(School of Information Science and Engineering, Central South University, Changsha 410083,China) ②(Institute of Traffic Science, Changsha University of Science and Technology, Changsha 410076, China) ③(School of Geosciences and Info-Physics, Central South University, Changsha 410083, China)
Abstract：In Ground Penetrating Radar (GPR) applications such as detection of targets located in layered medium, the time-domain Back Projection (BP) imaging algorithm is a commonly used imaging technique. However, the heavy computation burden and low-quality imaging results limit the practical application of this algorithm. This paper presents a new Fast Back Projection (FBP) high-resolution imaging method. Firstly, a new fast time-delay calculation method based on one-dimensional search operation or a quadratic equation solving operation is presented. Secondly, a new method to improve the quality of imaging results by using weighted factor is presented and a typical weighted factor is designed. Through processing simulation data, the FBP imaging results show that the algorithm can be applied effectively to the target imaging embedded in two layered medium.
雷文太, 曾胜, 赵健, 柳建新. 探地雷达对两层介质中目标的快速后向投影成像方法[J]. 电子与信息学报, 2012, 34(5): 1045-1050.
Lei Wen-Tai, Zeng Sheng, Zhao Jian, Liu Jian-Xin. Ground Penetrating Radar Fast Back Projection Imaging Technique of Targets Located in Two Layered Medium. , 2012, 34(5): 1045-1050.
2012, Vol. 34 
