基于FPGA的FIR低通滤波器的设计与实现

Design and Realization of FIR Low-pass Filter Based on FPGA

论文主要研究基于FPGA技术、采用分布式算法实现FIR低通滤波器的原理和方法。该设计利用Matlab工具箱设计窗函数计算FIR滤波器系数,并用QuartusⅡ进行硬件仿真,仿真结果表明设计FIR滤波器的正确性。最后以16阶的FIR低通滤波器为例,给出了仿真波形、硬件验证方法和实际测量结果。

The theory and method to realize FIR low-pass filter using Distributed Arithmtetic based on FPGA is presented. The design uses window function of Matlab toolbox to calculated FIR filter coefficient, and simulated with QuartusⅡ. The hardware simulation result shows the designed FIR filter is correct. A 16-order FIR low filter is designed as an example, showing the simulated waves, hardware verifi- cation method, and actual