摘要
本文提出了一种新的信号奇异性检测方法———小波变换 ,理论与仿真结果证明 ,对于突变信号或孤立奇异性信号的处理 ,基于小波变换的奇异性检测方法其分辨率要高于FFT方法。文中详细讨论了小波的奇异性检测算法 。
In this paper,a new singularity detection method with wavelet transformation is given. Its also proved by theoretical and emulation that for transient signals or irregular structures,singularity detection based on wavelet transformation has better distinguishing rate than that of FFT.It also discussed the algorithm of singularity detection,and the singularity of sine emulating result is given at last.
出处
《电子测量与仪器学报》
CSCD
2000年第1期13-16,共4页
Journal of Electronic Measurement and Instrumentation
基金
国防预研基金资助项目
关键词
小波变换
信号奇异性检测
频谱分辨率
Wavelet transformation
Singularity detection
Spectrum distinguishing rate