基于MATLAB与CCS的FIR滤波器的C语言实现  

Implementation of FIR filter by the C language based on MATLAB and CCS

作　　者：凌生强[1] 廖柏林[2] 徐澧明[1] 丁亮[1] 胡小勇[1] 

机构地区：[1]吉首大学物理与机电工程学院,吉首416000 [2]吉首大学信息科学与工程学院,吉首416000

出　　处：《信息技术》2012年第6期26-29,共4页Information Technology

基　　金：湖南省教育厅科研项目(09C792);吉首大学大学生研究性学习和创新性实验计划项目(JSU-CX-2009-22)

摘　　要：为保证所设计的FIR数字低通滤波器具有严格的线性相位,在对几种FIR基本结构的比较之后,采用了线性相位FIR滤波器的直接型结构。使用Matlab内置函数计算出滤波器的系数和检验滤波器的频率响应特性。采用C语言实现数字滤波器的设计,并在集成开发环境代码调式器(Code Composer Studio,CCS)上进行仿真,仿真结果表明,所设计的数字低通滤波器能够满足系统实时性和不失真要求。To ensure the design of FIR digital low-pass filter has strict linear phase, having compared several basic structure of FIR, the direct linear phase FIR filter structure was finally used. The calculation of filter coefficients and the verifying of filter frequency features were made by built-in functions of MATLAB. The design of digital filter was made by C language, and the simulation was carried on the Code Composer Studio（CCS）. The results of simulation show that the digital low-pass filter meets the characteristics of real-time and distortionless.

关 键 词：线性相位FIR低通滤波器 TMS320C5402 MATLAB CCS C语言编程 

分 类 号：TN713[电子电信—电路与系统]