基于B-样条小波的信号奇异性检测算法  

Detection Algorithm of Signal Singularity Based on B-spline Wavelet

作　　者：刘刚[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2012年第4期55-57,共3页Shipboard Electronic Countermeasure

摘　　要：介绍了小波变换的快速算法——Mallat算法和三次B-样条小波滤波器组系数,详细讨论了信号奇异性、小波函数奇偶性与模极大值的关系,最后给出了一个利用小波系数模极大值定位信号奇异点的实例。This paper introduces the fast algorithm of wavelet transform：Mallet algorithm and 3-order B-Spline wavelet filter group coefficients,discusses the relationship between the signal singularity,the parity of wavelet function and modulus maxima in detail,finally gives an example of using modulus maxima of wavelet coefficient to locate the singular points of signal.

关 键 词：MALLAT算法 模极大值 奇异性 

分 类 号：TN911.23[电子电信—通信与信息系统]