快速实现基于CPLD的多带数字FIR滤波器

A way of fast implementing multiband FIR digital filter based on CPLD

介绍一种快速实现基于复杂可编程逻辑器件CPLD的FIR数字滤波器的方法,滤波器的系统参数用Matlab信号处理工具箱中的滤波器函数确定,并以一个多带FIR滤波器的设计为例,对此方法进行了阐述与验证.在确定滤波器参数后,以ALTERA公司的可编程逻辑器件为载体,说明了此数字滤波器的CPLD实现方法与硬件结构,并对不同硬件结构对滤波器性能的影响进行了对比.

This paper presented a way of fast implementing FIR digital filter with CPLD.Filter parameter was designed by Matlab filter functions in filter design toolbox.This paper described and verified the method by a multiband FIR filter.After definiting the parameter,ALTERA Corporation's Complex Programmable Logic (CPLD) was used as an objective system.This system described the process and hardware architecture of implementing the digital filter with CPLD.Finally,the paper compared the performances between different hardware architectures.