摘要
论文主要是针对对经验模态分解在分离信号功能方面提出两种改进方法:先去噪后分解以及先设定所研究对象的频率范围再从众多内模函数中提取相应数据。
This paper proposes two advanced methods of empirical mode decomposition in separating signal.The first improve⁃ment is a denoising preprocess before signal speration.The second is setting a frequency range constrain in favor of selection of corre⁃sponding data in the intrisic mode function.
作者
卢珍
LU Zhen(Guangzhou College of South China University of Technology,Guangzhou 510800)
出处
《计算机与数字工程》
2021年第4期776-780,共5页
Computer & Digital Engineering
关键词
经验模态分解
去噪
内模函数
信号分离
empirical mode decomposition
denoising
intrinsic mode function
signal separation
