数字振荡器的实现原理与仿真编程  

The Principle for Realizing a Digital Oscillator and Its Simulation Program

作　　者：姚宇新[1] 钱炜坤[1] 

机构地区：[1]江南大学通信与控制工程学院,江苏无锡214036

出　　处：《电气电子教学学报》2003年第1期43-48,共6页Journal of Electrical and Electronic Education

摘　　要：鉴于数字信号处理中的实时应用问题。探讨了数字滤波器的实时实现原理 ,包括离散时间网络结构的作用和离散时间信号处理的特点。重点分析了实时应用中实现数字滤波器的基本思想 ,运用 MATL AB和所导出的通用数字振荡器的系统函数对一个非正弦数字振荡器进行了仿真编程。还讨论了有关实时处理的几个重要的系统性质 ,表达了作者对于当前学习和应用数字信号处理方法的观点。In view of the problems on real time application of digital signal processing, this paper investigates the principle of digital filters realization in real time, including the discussion on the function of discrete time network structures and the properties of discrete time signal processing. It puts great emphasis on analysing the basic ideas of digital filtes realization in real time application. According to the system function deducced for a general purpose digital oscillator, we simulate a non sinusoidal digital oscillator with MATLAB. This paper also discusses some important system properties about real time processing and expresses our views on studying and applying the technique of digital signal processing at present.

关 键 词：数字滤波器 数字振荡器 离散时间网络结构 数字信号处理 

分 类 号：TN713.7[电子电信—电路与系统] TN752