摘要
EMD是一种较新的信号分析方法,由于其具有能够自适应分解和优良的局部分析能力的突出优点,在机电系统振动信号分析领域有很广阔的应用前景。介绍了其理论基础,分析了其优势和缺陷,指出了其在机电系统振动信号的滤波和信号分析中应用的可能性和实现方式。为了验证应用的有效性,给出了验证实例。实例表明,EMD在机电系统振动信号的分析中具有良好的效果。
Empirical mode decomposition （EMD） is a new signal analysis method. There are many aspects. It can be used in the field of mechanical and electrical system vibration signal analysis, for its perfect advantages. such as： self-adapting, local analysis ability. The basal principle of the method was introduced shortly. Both advantages and disadvantages of the method were pointed out. Further more, the possible and method of applications in mechanical and electrical system vibration signal were explained. Two approach were discussed, filter and component analysis. To validate the validity of the method, a vibration signal is analyzed using the method. The result shows that it take effect very well.
出处
《科学技术与工程》
2009年第17期5116-5119,共4页
Science Technology and Engineering
基金
河南省科技攻关项目(0821002210111)资助
