动态信号分析的一种新方法——通频全息谱的研究

A New Way of Analyzing Dynamic Signal——Research of Pass Holospectrum

本文提出了一种相互垂直的动态信号分析的新方法——通频全息谱。通频全息谱凝聚了两垂直动态信号在频域中的幅值、相位、频率信息,综合反映了研究对象所在平面内的运动全貌,使得它既直观又准确地描述了不同频率成份下的运动特征。本文详细地介绍了通频全息谱的算法,并对其误差进行了分析。在此基础上,利用国家级火炬计划项目《CMDS信号处理故障诊断及振动分析系统》的有关成果,研制了通频全息谱分析程序。

This paper puts forward a new way of analyzing mutual vertical dynamic signal - pass holospectrum. Pass holospectrum includes amplitude value and frequency information of two vertical dynamic signals, reflects the whole move in the plat surface of the research object and describes characteristics of the move under different frequent components directly and precisely. This paper introduces the algorithm of pass holospectrum and analyzes its errors. Based on this and by making use of the achievements of CMDS Fault Diagnosis of Signal Process and Vibration Analysis System in the program of national torch projection, the analysis program of pass holospectrum is developed.