能量无限的信号的小波分析方法

Wavelet Analysis Methods to the Signals with Infinite Energy

利用连续小波变换研究了能量为无限的信号的谱分析，引进了时－频功率谱的概念，并研究了时－频功率谱与经典的功率谱及平均功率的关系；还引进了自相关函数的小波变换，且研究了它与时－频功率谱之间的关系。

We study the spectrum analysis to the signals with infinite energy using continuous wavelet transform,the concept of time-frequency power spectrum is presented,and the relations between the time-frequency power spectrum and classical power and average power are studied,the wavelet transform of self-correlation function is also presented, and the relations between it and time-frequency power spectrum are also studied.