自适应滤波的ppt教程，非常经典，我们上课用的就是这个，很容易理解-Adaptive filtering ppt tutorial, very classic, we have used in this class, it is easy to understand

A Tutorial on digital filter design

本人学习数字信号处理过程编写的关于FIR滤波器的教程，很好的，用心写的，例程用matlab可以通过。-I am learning digital signal processing prepared on the FIR filter tutorial, good intentions written routines by using matlab.