Then, this thesis concerns with the wavelet transform and its application in power system and compare the deficiency vs strongpoint between the Fourier transform ,short-time Fourier transform.

• 然后详细研究了小波分析在电力系统中的应用，对比了傅立叶变换、短时傅立叶变换、小波变换在信号处理的优缺点，指出了小波变换能用于非平稳信号的分析。