采用不同预处理方法的GPR图象去噪效果分析  

Performance analysis of GPR image de-noising based on different pre-processing methods

作　　者：邹海林[1] 宁书年[1] 邹华胜[1] 

机构地区：[1]中国矿业大学机电与信息工程学院,北京100083

出　　处：《地球物理学进展》2005年第2期469-475,共7页Progress in Geophysics

基　　金：教育部博士基金(20030290003);山东省自然科学基金(Y2002G08)资助.

摘　　要：探讨了多小波预处理方法对信号去噪性能的影响,选取不同的多小波函数和不同的预处理方法,利用改进的阈值函数,对实际的探地雷达(GPR)图像进行阈值化处理和对比分析,结果表明选取合适的预处理方法,采用DGHM多小波对GPR图象去噪可获得比其他方法更好的效果.The influence on signals de-noising with the multiwavelets pre-processing methods is discussed and investigated in this paper. The de-noising effect of ground penetrating radar (GPR) image with multiwavelets based on different pre-processing methods and an improved thresholding function is analyzed and compared. The results of simulation experiment indicate that the de-noising effect of GPR image with DGHM multiwavelet based on proper pre-processing methods is better than those traditional methods.

关 键 词：多小波 探地雷达(GPR) 预处理 性能分析 

分 类 号：P631[天文地球—地质矿产勘探]