多尺度滤波器的瑞利波提取和验证  

Extraction and Validation of Rayleigh Waves Based on Multi-scale Filter

作　　者：唐银国[1] 任波[1] 张健[1] 

机构地区：[1]沈阳理工大学装备工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2015年第1期40-45,55,共7页Journal of Shenyang Ligong University

摘　　要：通过分析瑞利波的特性,提出了基于多尺度滤波器提取瑞利波的方法,主要应用于地面目标探测。在此应用背景下,通过实际的震动系统采集数据,设计出实验中需要的多尺度滤波器,分析处理并提取出瑞利波。通过其频率分布、相速度、振幅衰减规律与实际参数的对比来验证多尺度滤波器提取方法的有效性。结果与实际各项参数一致,证明此方法是可行的。Raleigh wave characteristics are analyzed and extracted based on multi-scale fil-ter, which is mainly applied to the detection of ground targets. Data is collected by actual vi-bration system and the multi-scale filter is designed, which is required in the experinent. Fi-nally, the Raleigh wave is extracted to process and analyze, which verifies the feasibility ofmethod to multiscale extraction filter by comparing the frequency distribution, the phase ve-locity and the amplitude attenuation law. Simulation results are consistent with actual param-eters, which show that the proposed method is feasible.

关 键 词：多尺度 瑞利波 提取 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]