微机数字滤波器设计程序

A Program for Digital Filter Designing Based on Microcomputer

本文介绍了在Cromemco C—10微型机上实现的数字滤波器设计程序,可分别用冲激不变法和双线性变换法设计巴特沃思和切比雪夫型的低通、高通、带通和带阻的无限冲激响应(IIR)数字滤波器,用窗函数法设计上述类型的有限冲激响应(FIR)数字滤波器,并在打印机上绘制出高精度的特性曲线。程序具有一定的通用性,是在微机上快速、精确地进行数字滤波器设计的有效工具。

A program for digital filter designing based on CROMEMCO C-10mictocomputer is proposed. Executing the program, you can design Butterworth andChebyshev Infinite Impulse Response (IIR)filters including lowpass, highpass,bandpass and bandstop filters. Impulse Invariance and Bilinear Transformaion canbe used in the design. Also you can design Finite Impulse Response (FlR) filterswith the window function method. Not only the digital system's function but alsothe frequency characteristics are output on display or printer. This program is aneffective tool for fast and precise filter design based on microcomputer.