软硬件实现的数字滤波系统

Implementation of a Digital Filter System by Software and Hardware

本文介绍一个IIR数字滤波器的设计实例,提出用Z80汇编语言实现这个数字滤波器的方法。设计了一个实际的信号处理系统,并对该系统进行试验,用FFT分析试验得到的数据。

An actual example of IIR digital filter design is introduced. The implementing method of the digital filter by Z80 assembly language is proposed, and an actual signal processing system is designed. Experimental work has been carried out and the data obtained are analyzed using FFT algorithm.