摘要
研究了基于小波包分析的冲击脉冲信号检测方法。在Coifman最佳基搜索算法的基础上,提出了以小波包分解后节点的能量代替香农熵值,做为寻找最佳分解节点的方法。对滚动轴承故障脉冲检测表明,此方法不但有效,而且计算简单。
Research on the detection method of impulse signal. A new method detecting the best bases is proposed which replaces the Shannon entropy based on the Coifman algorithm. It is applicated in the impulse signal detection of rolling bearing. The result is proved that this algorithm is effective and simple.
出处
《机电工程技术》
2009年第5期24-25,69,共3页
Mechanical & Electrical Engineering Technology
基金
国家863计划(编号:2005AA420062)
