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基于模极大值小波域的包络去噪算法研究
Study on an Envelope Denoising Algorithm Based on Modulus Maximum Wavelet Field
【摘要】 针对包络轮廓信息提取粗糙的难题,结合小波变换和希尔伯特变换原理,提出了一种基于模极大值小波域的包络去噪算法。仿真表明该算法提高了包络提取的精度,全面获得信号所隐含的故障特征。
【Abstract】 For solving the rough outline about extracted envelope,an innovational extracted envelope denoisingalgorithm based on modulus maximum wavelet field was proposed combined with wavelet transform and Hilberttransform.Simulation results show that the research work can efficiently and accurately extract overall faultcharacters of the envelope information in signal.
【关键词】 小波变换;
包络提取;
去噪;
模极大值小波域;
【Key words】 Wavelet transform Envelope extraction Denoising Modulus maximum wavelet field;
【Key words】 Wavelet transform Envelope extraction Denoising Modulus maximum wavelet field;
- 【文献出处】 仪器仪表学报 ,Chinese Journal of Scientific Instrument , 编辑部邮箱 ,2005年S2期
- 【分类号】TN911.7
- 【被引频次】3
- 【下载频次】226