Matlab仿真在DSP应用技术实验教学中的应用  

Application of Matlab Simulation in DSP Application Technology Experiment Teaching

作　　者：杨光[1] 

机构地区：[1]长春理工大学电子信息工程学院,长春130022

出　　处：《实验科学与技术》2015年第2期38-42,共5页Experiment Science and Technology

基　　金：2011年吉林省高等学校省级特色专业建设点(吉教高[2011]27号);2011年吉林省优秀课建设基金资助项目(吉教高字[2011]43号);2012年长春理工大学高等教育教学研究基金资助项目

摘　　要：文中介绍了一种基于DSP的FIR滤波器设计方法。首先,利用Matlab设计出符合要求的低通滤波器,给出仿真实现结果,并提取滤波器系数;然后,采用循环缓冲区和双操作数间接寻址方式在TMS320LF2407A芯片上实现两个不同频率正弦波信号的低通滤波。对比仿真和硬件验证结果表明,该滤波器基本满足预期性能指标要求。实践与研究表明,在DSP应用技术实验教学中,引入Matlab仿真,解决了实验教学中存在的问题,获得了良好教学效果。A design method of FIR filter which based on DSP is introduced. Firstly,a low- pass filter which meets the requirements is designed by Matlab,and the simulation result is given,and the filter coefficient is extracted. Then,the low- pass filter of two different frequency sine wave signals is achieved by indirect addressing mode of the circular buffer and double operation in the TMS320LF2407 A. Contrasted simulation with hardware verification results,it shows that the filter can meet basically expected performance requirements. The practices and researches show that Matlab simulation which is introduced in DSP application technology experiment teaching,obtain good teaching effect and solve the problems of DSP application technology experiment teaching.

关 键 词：DSP技术 实验教学 仿真 MATLAB软件 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] C642.0[自动化与计算机技术—计算机科学与技术]