文献类型：期刊文献

中文题名：冲激(偶)函数类性质的教学策略探讨

英文题名：The Research on Teaching Strategy About the Characteristics of Impulse (Couple) Function

作者：钱琳琳[1];任俊杰[1]

第一作者：钱琳琳

机构：[1]北京联合大学自动化学院

第一机构：北京联合大学城市轨道交通与物流学院

年份：2004

卷号：18

期号：3

起止页码：80-82

中文期刊名：北京联合大学学报

语种：中文

中文关键词：冲激函数;冲激偶函数;广义函数

外文关键词：impulse function; impulse couple function; generalized function

摘要：　冲激(偶)函数类性质历来是《信号与系统》教学中的难点,也是学生不易理解的内容,为此,教学策略采用"三步走"的方法:首先与普通函数定义方法相比较引出广义函数定义和"两广义函数相等"的概念,继而用高等数学的微积分知识证明冲激(偶)函数类的"抽样"性质,最后以前两者为基础证明冲激偶函数的"筛选"性质。
The characteristics of impulse function and impulse couple function are always the difficulties in the teaching of signals and systems. For this reasons, the teaching strategy is composed of three steps. First, by comparing with the definition of ordinary function, the definition of the general function and the equality of two generalized functions are introduced. Second, the 'sampling action' of impulse function is proved with the knowledge of calculus. Finally, the 'sifting performance' of impulse function is confirmed based on the two formers.