脉冲探地雷达的快速BP算法  

A Fast Back-Projection Algorithm for the ImpGPR

作　　者：王磊[1] 黄春琳[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《雷达科学与技术》2009年第1期23-28,共6页Radar Science and Technology

摘　　要：基于脉冲探地雷达的后向投影(back-projection,BP)成像算法在处理大宗数据时由于运算量大而使得计算效率较低。文中在传统BP算法的基础上提出了一种快速后向投影(fast back-projection,FBP)成像算法,并以单个点目标和多个点目标的成像为例,将该算法应用于脉冲探地雷达的成像,其计算效率较传统的BP算法有显著提高,而且理论推导和仿真结果均表明,FBP算法的成像质量与传统BP算法相近,从而得出了FBP算法的优越性。GPR（Ground Penetrating Radar） is one of the highest resolution and most efficiency underground survey equipments. The application of the back-projection（BP） algorithm for ImpGPR（Impulse GPR） imaging is restricted due to its great computation load when there are a great number of data. Based on the research on the traditional back-projection algorithm, a fast back-projection algorithm for ImpGPR is presented in this paper. Taking spot target and multi-spot target for example, the computation efficiency of the algorithm is superior to that of the traditional BP algorithm. Computer simulation results show that the image quality of the FBP algorithm is similar to that of the BP algorithm.

关 键 词：探地雷达 雷达成像 快速后向投影算法 

分 类 号：TN959.71[电子电信—信号与信息处理]