离散控制系统采样信号数学描述方法的讨论  

Discussion on Mathematical Formulations of Sampled Signals for Discreted-time Control Systems

作　　者：张聚[1] 杨马英[1] 王万良[1] 

机构地区：[1]浙江工业大学信息工程学院自动化系,浙江杭州310032

出　　处：《电气电子教学学报》2003年第5期22-24,共3页Journal of Electrical and Electronic Education

基　　金：浙江工业大学"自动控制原理"优秀课程建设项目资助

摘　　要：计算机控制系统的广泛应用 ,使得离散系统的建模、分析以及设计在经典控制理论的教学中处于愈来愈重要的位置。本文针对学生在学习采样信号的数学表述方法时存在的疑问和困惑 ,指出现有的采样信号的数学表述方法本身 ,有其欠妥之处 ,容易造成学生的误解。论文同时给出了改进的采样信号的数学表述方法。教学实践表明 :基于改进的采样信号表述方法授课 ,理论上更为严谨 ,学生易于理解、接受。With the wide use of the computer control systems, the topics of modeling, analysis and design of the discreted-time control systems have become important parts of the classical control theories. This paper deals with some questions on the mathematical formulations for the sampled signals, which many students may put forward when learning classical control theories. At the same time, this paper points out the shortcomings of the existing mathematical formulation for the sampled signals, which usually render students misunderstanding. This paper also presents an improved mathematical formulation for the sampled signals, and teaching practice shows the improved one to be easily understood by students.

关 键 词：离散控制系统 采样信号 数学描述方法 计算机控制系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]