摘要
针对经验模态分解(EMD)分量中存在的虚假模态分量,提出一种新的消除方法——在频域中消除虚假模态。通过模态分量频域能量守恒原理,对虚假模态分量进行分析,研究其能量关系,给出真假模态及模态混叠判别规则。编制MATLAB程序,对仿真数据进行虚假模态消除仿真。
For the pseudo mode function in empirical model decomposition（EMD）,this paper introduces an effective method-mode function cancellation in the frequency domain.Basing on the energy conservation of mode function in the frequency domain,this paper studies the pseudo mode function and its energy relation with other modes and provides the rules that how to tell the mixing mode.At last,this paper verifies its effectiveness with the MATLAB simulation software.
出处
《工业控制计算机》
2015年第6期97-99,共3页
Industrial Control Computer
关键词
经验模态分解
虚假模态
频域
消除
EMD
pseudo mode function
frequency domain
cancellation
