摘要
基于广义解调的时频分析方法是一种新的信号处理方法,本文在详细地介绍广义解调时频分析方法的基础上,采用广义解调时频分析方法对仿真信号进行了分析,同时和其它时频分析方法进行了比较,结果表明了广义解调时频分析方法的有效性。重点对广义解调时频分析方法应用范围、相位函数的选择等问题进行了讨论,得出了相应的结论。
The generalized demodulation time-frequency analysis approach is a new signal processing method.Here after the generalized demodulation time-frequency analysis method is introduced,it is applied to the simulated signal and compared with the other time-frequency analysis methods.The results demonstrate its effectiveness.Furthermore,its some problems,such as,the application range and the selection of the phase function are discussed and the corresponding conclusions are obtained.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第2期19-24,共6页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(编号:50605019)
关键词
广义解调
时频分析
应用范围
相位函数
generalized demodulation,time-frequency distribution,application domain,phase function
