基于模型的数字滤波器设计及DSP实现  

Model-Based Digital Filter Design and DSP Realization

作　　者：陈志英[1] 刘虹[2] 陈飘萍 

机构地区：[1]厦门理工学院电气工程与自动化学院,福建厦门361024 [2]厦门理工学院光电与通信工程学院,福建厦门361024

出　　处：《厦门理工学院学报》2015年第1期39-44,共6页Journal of Xiamen University of Technology

基　　金：福建省教育厅科技项目(JK2013036;JB14078)

摘　　要：以低通音频数字滤波器设计为例,提出一种基于模型的滤波器设计及DSP硬件实现方法.硬件由TI DSP器件TMS320VC5509A与高性能多媒体数字语音编解码器TLV320AIC23构成.软件采用MATLAB Simulink对FIR滤波器进行建模,采用S-function编写VC5509A与AIC23相关接口驱动等自定义模型.通过代码自动生成技术产生C代码并下载至DSP中进行处理器在环硬件测试,结果显示音频滤波效果明显,表明基于模型设计方法是正确与高效的.This paper presents a model-based design of digital filter and DSP realization, taking a digital low pass audio filter as example. The hardware consisted of a TI DSP device TMS320VC5509A and a high performance multimedia digital voice processor TLV320AIC23. FIR filter was built in MATLAB Simulink and interface driver models between VC5509A and AIC23 was programmed using S-function. C code of system was generated and loaded in the DSP device by the automatic code generating technology. A test of the system with DSP processor in the loop was made and the results proved that the model-based design is workable and efficient.

关 键 词：数字滤波器 DSP实现 MATLAB SIMULINK TMS320VC5509A TLV320AIC23 

分 类 号：TN713.7[电子电信—电路与系统] TP368.2[自动化与计算机技术—计算机系统结构]