【摘要】 小波变换突破了传统傅里叶变换等信号处理方法的限制,在时域和频域上可同时对信号实现局部化处理,因而在检测信号奇异性等方面具有广泛的应用价值。现介绍了小波变换的基本理论以及在检测信号奇异性中的作用。并在Matlab下进行了两种奇异信号仿真试验,取得了一定的效果。实验结果表明,小波变换在奇异信号的检测中是有效的。更多还原

【Abstract】 Unlike the traditional Fourier transform,the wavelet transform has good localization property both in time and frequency domains.This paper introduces the concept of wavelet transform and the application of the wavelet transform in the detection of the singularity.The simulation validates is also made.It is proved that the technique has specific property for singular detection.更多还原