基于STM32单片机的FIR滤波器设计  

Design of Fir Filter Based on STM32 Microcontroller

作　　者：姜余祥 杨萍 刘明 余梦桓 付羽彤 JIANG Yuxiang;YANG Ping;LIU Ming;YU Menghuan;FU Yutong

机构地区：[1]北京联合大学智慧城市学院,北京100101

出　　处：《今日自动化》2024年第8期50-52,共3页Automation Today

基　　金：2023年度北京联合大学教育教学研究与改革项目(JJ2023Z004)。

摘　　要：使用STM32F103CBT6单片机,实现了一种高阶FIR滤波器算法。通过MATLAB完成FIR滤波器设计,并在单片机上完成滤波器算法移植。脑波信号采样后数据经过该FIR滤波器滤波,并将滤波后数据关联到MATLAB上进行时域和频域分析。结果表明,使用软件设计实现的FIR滤波器,有利于提高脑机设备的抗干扰性能。A high-order FIR filter algorithm was implemented using the STM32F103CBT6 microcontroller.Firstly,complete the FIR filter design using MATLAB and transplant the filter algorithm onto a microcontroller.Then,the brainwave signal was sampled and the data was filtered by the FIR filter,and the filtered data was correlated to MATLAB for time-domain and frequency-domain analysis.The results have shown that using software designed and implemented FIR filters is beneficial for improving the anti-interference performance of brain computer devices.

关 键 词：EEG FIR FFT STM32 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]