脉冲探地雷达后向投影成像方法的研究  

Research on back-projection imaging method of impulse ground penetrating radar

作　　者：来五星[1] 唐文静 孙少山 钟升 LAI Wuxing;TANG Wenjing;SUN Shaoshan;ZHONG Sheng(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《现代电子技术》2018年第15期61-64,共4页Modern Electronics Technique

摘　　要：对脉冲探地雷达数据进行成像处理有利于地下目标的定位和探测。详细阐述了探地雷达后向投影成像方法的实现原理与过程,并针对该方法存在计算效率低的问题,提出基于子孔径划分的改进后向投影成像方法,最后用频率-波数成像、有限差分成像、标准后向投影成像以及改进的后向投影成像方法分别对仿真和实测数据进行成像处理并比较各成像方法的性能,验证了改进算法的有效性。The imaging processing of impulse ground penetrating radar(GPR)data is helpful for the location and detection of underground targets.The implementation principle and procedure of the standard back-projection imaging method of GPR are described in detail,and an improved back-projection imaging algorithm based on sub-aperture division is proposed to improve the computational efficiency of the standard imaging method.The frequency and wave number imaging,finite difference imaging,standard back-projection imaging and improved back-projection imaging methods are used to process the simulation data and actual measured data,their performances are compared,and the effectiveness of the improved algorithm is verified.

关 键 词：探地雷达 成像方法 后向投影 子孔径划分 合成孔径 成像效率 

分 类 号：TN958-34[电子电信—信号与信息处理]