Design of teaching case for "Signals and Systems" based on major’s traits
面向专业特色的“信号与系统”教学案例设计

摘要

案例教学法有助于解决“信号与系统”课程数学理论抽象、学生理解和运用困难的问题，但如何设计具有专业特色的教学案例仍然是一个需要不断探讨的问题。为此，本文通过对本校电子科学与技术专业的特色和该专业“信号与系统”课程的定位进行分析，以信号无失真传输的相频特性为例，设计了基于集成光波导对其进行物理实现的教学案例，进而对其中所蕴含的思政元素进行了挖掘。所得成果可为学生搭建起从信号与系统分析理论到半导体集成电路特色实践的桥梁，从而有助于提升课堂教学的效果并提高学生理论联系实际的能力。

Abstract

Case-based teaching is conducive to addressing the issues of the abstract mathematical theories in the "Signals and Systems" course and the difficulties students face in understanding and applying them. However, how to design teaching cases with major’s traits remains a question that needs continuous exploration. To this end, this paper, through an analysis of the characteristics of the electronic science and technology major at our institution and the positioning of the "Signals and Systems" course in this major, takes the phase frequency characteristics of signal distortion-free transmission as an example, designs a teaching case based on integrated optical waveguide for its physical implementation, and then explores the ideological and political elements contained therein. The outcomes can build a bridge for students from the analysis theory of signals and systems to the characteristic practice of semiconductor integrated circuits, thereby helping to enhance the effectiveness of classroom teaching and improve students' ability to connect theory with practice.