摘要
结合探地雷达直达波的特点,提出了基于EMD的探地雷达直达波去除方法的基本思想,在去除直达波方法中引入了差异扩大和能量均衡,并给出了计算流程。通过对数值模拟信号和现场实测信号的处理表明,基于EMD的直达波去除方法可以有效去除直达波信号,使用差异扩大和能量均衡后可以较好地将有效信号显现。
Combined with the. GPR direct wave characteristics, it proposed the basic idea of the wave removing based on EMD, and introduced the expansion of difference and the energy balance, and provided the calculation process. By means of numerical simulation signal and the signal processing field measurement it showed that the direct wave removing method based on EMD can effectively remove direct wave signal, and effective signal display very well by using the expansion of difference and the energy balance.
出处
《公路工程》
北大核心
2016年第5期208-211,共4页
Highway Engineering
基金
福建省交通厅科技项目(201338)
关键词
探地雷达信号
直达波去除
EMD
差异扩大
能量均衡
the GPR signal
the direct wave removing
empirical mode decomposition
the expansion of difference
the energy balance
