一种通用数字fir滤波器设计方法

A Method for Designing a General Digital FIR Filter

该文以现代工程应用场景为背景,从数字滤波器的数学原理和应用方法出发,对基于FIR滤波器的成形滤波器、多相滤波器以及CIC滤波器的应用进行了分析。结合Matlab和Vivado软件,提出了一套通用的数字滤波器设计方法。详述了Matlab中的滤波器参数配置和coe文件输出方法,并将所给滤波器系数文件导入Vivado软件进行仿真验证。结果显示设计的滤波器有效处理信号,验证了该方法的可靠性和适用性。

This paper,set against the backdrop of modern engineering applications,analyzed the application of FIR filters,such as shaping filters,polyphase filters,and CIC filters,starting from the mathematical principles and application mcthods of digital filtcrs.By combining Matlab and Vivado software,a generic digital filter design method was proposcd.The configuration of filter parameters in Matlab and the method of exporting coe files were detailed,followed by importing the given filter coefficient files into Vivado software for simulation verification.The results demonstrated that the designed filters effectively processed signals,thus validating the reliability and applicability of this method.