小波变换在信号去噪中的应用  

Application of Wavelet Transform in Signal Denoise

作　　者：王书林[1] 

机构地区：[1]南京工程学院自动化系,南京210013

出　　处：《弹箭与制导学报》2006年第4期294-296,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：文中通过对信号与噪声在经过小波变换后不同特点的分析,讨论了一种对含噪信号进行噪声消除的方法,该方法与传统的低通滤波器相比在改善信噪比的同时还保持了很好的时间分辨率,最后通过仿真实验,证明了该方法的有效性。Having analyzed the differences between signal and noise after they are wavelet-transformed, the paper discusses a noise eliminating method which is good for signal in noise. Compared with the traditional low-pass filter, the method not only raises the signal-to-noise ratio bur also keeps high time resolution. Simulation has proved the effectiveness of the method.

关 键 词：小波变 时频分析 信号去噪 

分 类 号：TN911.4[电子电信—通信与信息系统]