FIR滤波器的设计及DSP实现  

FIR Filter Design and DSP Implement

作　　者：刘利群[1] 韩震宇[1] 李绍卓[2] 

机构地区：[1]四川大学机械电子工程研究所,四川成都610065 [2]第二炮兵装备研究院,北京100085

出　　处：《现代电子技术》2007年第22期38-40,共3页Modern Electronics Technique

摘　　要：为保证立体声数字调频广播发射机系统能不失真传送语音信号,系统采用具有严格线性相位的FIR滤波器。通过对比几种常见FIR滤波器设计方法,选择了适合自己系统的最佳滤波器设计方法。并使用Matlab信号处理工具箱进行快速有效的设计。详细地介绍了该设计结果在本系统所用DSP芯片(TMS3205509)上的应用。该滤波器能够满足系统实时性和不失真要求。In order to make sure the signals that come through digital FM exciter is not been distorted, the system adopts FIR filter,which has perfectly linear phase characteristics. This paper present advantages of equiripple filter design overother common FIR filters design, which is used by our system. Also, designs a high performance filter by using Matlab signal processing tools. At the same time, detailed the implement of the filter on TMS3205509. This design can meet the demands of realime and no distortion.

关 键 词：FIR滤波器 MATLAB TMS3205509 循环寻址 

分 类 号：TN713.1[电子电信—电路与系统]