摘要
研究了基于小波包变换算法,使用该算法设计VI程序,并设计了变频器干扰信号检测系统,实现了变频器干扰信号实时检测。实际测量了干扰信号的波形和功率谱,通过实验和测试结果表明,基于小波包分析算法的检测系统信噪分离效果良好,测试方法有效可行。
Algorithm is studied based on wavelet transformation. VI program and detection system for transducer interference signal are designed by the algorithm. Real-time detection is realized for transducer interference signal. interference signal and power spectrum are measured by experiment and practice test. Test result shows that apart effect of signal and noise are good based on wavelet analysis algorithm and test method is feasible and effective.
出处
《自动化与仪表》
北大核心
2009年第4期55-57,60,共4页
Automation & Instrumentation
基金
湖南省教育厅青年基金项目(07B013)
湖南工学院重点项目(07J005)
关键词
小波变换
小波分解
变频器
传导干扰
功率谱
wavelet transformation
wavelet factorization
transducer
conduction interference
power spectrum
