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简述了小波理论近年来的发展概况，将小波变换与加窗富里叶变换进行系统深入比较，对小波分析在信号检测、控制系统故障诊断及非线性分析中的应用研究进行了综述，提出了此领域中的一些进一步研究发展方向
The development of wavelet theory in recent years is briefly described. The wavelet transform and windowing Fourier transform are systematically compared deeply. The application of wavelet analysis in signal detection, control system fault diagnosis and nonlinear analysis are summarized. Some in this area further study the direction of development