判断系统的时不变性  

The Judgment of Time-Invariance of Systems

作　　者：高政[1] 周宗潭[1] 

机构地区：[1]国防科技大学机电工程与自动化学院自动控制系,湖南长沙410073

出　　处：《电气电子教学学报》2007年第1期30-31,共2页Journal of Electrical and Electronic Education

基　　金：国防科技大学"线性系统"精品课程建设项目

摘　　要：在“信号与系统”课程中,时不变性是系统的重要性质。根据笔者的教学体会,将系统的输入输出解析关系抽象为三类函数,并且分析了这些系统的时不变性,从而使学生能够快速有效地判别系统的时不变性。The time-invariance is a crucial property of systems in the course of Signals and Systems. In this paper, based on the author＇s experience of lecturing, the analytical relationships between output and input of the systems have been abstracted as three functions, on which the time-invariance of these systems have been analyzed based. Therefore, based on these functions, the students can judge the time-invariance of systems easily.

关 键 词：教学研究 教学方法 时不变性 信号与系统 

分 类 号：TN911.7[电子电信—通信与信息系统]