基于SG FIR Filter的设计方法与分析

Design and Analysis of System Generator-based FIR Filter

基于Xilinx System Generator for DSP工具,在现场可编程逻辑门阵列(FPGA)硬件平台上为了研究FIR滤波器的设计及实现技巧,给出了一个18阶的FIR数字低通滤波器滤波的实验,从滤波器的滤波效果和资源利用率等方面进行了分析,获得了针对不同型号的FPGA芯片和在不同硬件资源环境下,如何选择最优的设计实践方法的结果,得出了使用已封装好的Ipcore来实现所设计的滤波器,不但简单方便,可以减少系统的开发时间,又能有效的利用硬件资源,为最佳选择的结论。

Based on XilinxSystem Generator for DSP tools,and for analysis of thedesign and implementation for FIR Filteron the FPGA hardware platform,this paper describes an 18-band FIR digital low-pass filter experiment, then analyzes the filtering effect and resource utilization,and tells of how to choose the best method with different FPGA chips and different hardware resources.Finally it summarizes that the packaged Ipcore is thebest choice in filter design,which is easy in reduction of proccessing time and effective in utilization of hardware resources.