IIR设计及讲解，介绍了双线性变换法，巴特沃斯变换法及滤波器设计的程序和结果。-IIR design and explain, introduced bilinear transform, transform, and Butterworth filter design procedures and results.

可以实现十进制转换成任意字长的二进制。并又可以按照这个二进制转换成十进制。这个程序对于分析不同字长对于IIR数字滤波器和FIR滤波器的影响是非常有用的。-Decimal to convert any word length of the binary. And also in accordance with this binary to decimal conversion. This program is very useful for the analysis of the impact o

利用高通、低通、带通、带阻等滤波器对信号进行处理，滤除噪声，获得想要的信号。-Using high-pass, low pass, band pass, band stop filter such as signal processing, filtering noise, obtain the desired signal.