含乘性噪声的声发射信号降噪方法研究

基金项目:

国家高技术研究发展计划（863计划）资助项目（2006AA09A104）

山东省科技发展计划项目（2011GGX10329）

详细信息

Research of multiplicative noise reduction method for acoustic emission signal

1.
School of Sciences, Qingdao Technological University, Qingdao 266520, China
2.
College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China

摘要: 针对声发射噪声信号的特点，研究了适合含乘性噪声的声发射信号的自适应滤波器和小波分解降噪方法, 并对这2种降噪方法的降噪仿真结果进行了对比，结果表明自适应滤波器降噪方法更适合含乘性噪声的声发射信号的降噪处理。
- 声发射信号 /
- 乘性噪声 /
- 降噪 /
- 自适应滤波器 /
- 小波分解
Abstract: Based on the features of acoustic emission signal, the paper researched noise reduction methods of adaptive filters and wavelet decomposition fit acoustic emission signal with multiplicative noise. It compared simulation results of noise reduction of the two methods. The simulation results show that noise reduction method of the adaptive filters is more suitable for noise reduction for the acoustic emission with multiplicative noise.
- acoustic emission signal /
- multiplicative noise /
- noise reduction /
- adaptive filter /
- wavelet decompositio