“电路、信号与系统”中的相量和频域分析教学方法研究

Phasor Analysis and Frequency Domain Analysis in Circuits, Signals and Systems

摘要: 在“电路基础理论”和“信号与系统”两门课程中，基于相量法的电路正弦稳态分析与系统频域分析都是十分重要的内容，两者之间存在着深刻的内在联系，然而初学者不易把握。本文在剖析相量法和频域法的本质、异同和教学过程所遇到问题的基础上，提出了一个全新的授课思路，希望能改进“电路、信号与系统”课程的教学时效。

Abstract: In the courses of “Circuit Basic Theory” and “Signal and System”, the sinusoidal steady-state analysisof circuit based on phasor methodand the frequency domain analysis of system both are important contents, and there is a deep internal relation between them, which few students can really understand. Based on the analysis of the essence, similarities and differences of the phasor method and the frequencydomain method，as well as the problems encountered during teaching activities, this paper puts forward a new teaching idea, hoping to improving the teaching effectiveness for the course of “Circuits, Signals and Systems”.