【摘要】 小波变换正在众多学科掀起研究和应用热潮，并已获得了许多成功的应用．本文系统地研究了小波变换在滤波方面的应用，根据不同类型的噪音，给出了基于不同小波变换的滤波算法，并研究了其滤波原理．仿真结果表明，小波滤波方法不仅能实现各种滤波功能，而且简单易行，是一种有效的滤波手段．更多还原

【Abstract】 Wavelet transform (WT) is drawing enthusiasm from many disciplines and has made a lot of achievement. In this paper we study its application to filtering. According to different type of noise, the corresponding filtering algorithm is proposed based on different WT. Furthermore its principle is investigated. The simulation results indicate that the proposed algorithm provides an effective way for filtering which is not only simple and applicable, but also can satisfy various requirements of filtering.更多还原