“信号与系统”中的复信号概念诠释

The Interpretation of Complex Signal in the Course of Signal and System

复信号是“信号与系统”等电子信息类课程中的重要概念。传统教学过程中,通常将其作为纯粹的数学对象进行讨论,缺乏概念诠释及物理意义分析,这让学生感到抽象不好理解。从通信信号的数学表达出发,通过对比其极坐标形式、平面坐标形式和复数形式,给出一种形象易懂的复信号概念诠释方法,并探讨了如何在“信号与系统”课程中将其融入教学。该成果可用于辅助相关专业课程教学设计,帮助学生更好理解涉及复信号的相关知识。

to understand.The expression of communication signal is focused here.By comparing its complex form with polar coordinate form and Cartesian coordinate form,we provide a novel demonstration for complex signal and discuss how to incorporate it into foundation course such as Signal and System.The results of the paper make it easier to demonstrate and understand the signals′complex form in foundation courses.