摘要
在自适应噪音抵消系统中 ,如自适应滤波器参数选择不当 ,就达不到应有的滤波效果 ,而且还可能得到适得其反的效果。因此针对不同的信号和噪声应选择相应的参数。文中在自适应滤波器原理的基础上 ,对自适应滤波器设计过程中的参数选择原则进行分析、总结 ,并通过仿真实验验证了所得出的结论。
In the adaptive noise cancelling system, the selection of the parameters of adaptive filters is crucial. Improper choice of the parameters can cause resluts worse than without filtration. In this article, the method of choosing the parameters of adaptive filters is analysed on the basis of the adaptive filter theory, and a conclusion is reached concerning the choice of the parameters according to different signals and noise forms. A computer emulation verifying the conclusion is also given.
关键词
自适应滤波器
步长
级数
横型结构
格型结构
仿真
self adaptive filters
step length
grade numbers
cross structure
grid structure
