基于System View的信号与系统课程教学研究与实现

Implementation of Signal and System Teaching Based on System View

针对信号与系统教学中存在的弊端,提出以System View软件辅助教学,该软件通过学生参与设计系统,使学生更好地掌握教学内容。以经典教学内容"抽样定理"为例,分别选取100Hz、200Hz、500Hz采样率进行System View系统仿真。实验结果表明:System View软件在500Hz采样频率完全无失真恢复信号,200Hz部分失真恢复信号,100Hz完全失真恢复信号。该软件将抽象问题形象化,弥补了硬件实验的不足,从而进一步提高了教学质量。

In view of the disadvantages in the teaching of Signals and Systems,this paper thinks that the System View software can be used to assist teaching. The software enables students to better grasp the teaching content through students＇ participation in the design system. Taking the sampling theorem as an example,and 100 Hz,200 Hz and 500 Hz sampling rates are selected to simulate through System View. The experimental results show that the System View software has completely undistorted recovery signal at the 500 Hz sampling frequency,the 200 Hz partial distortion recovery signal and the 100 Hz complete distortion recovery signal. It visualizes the abstract problem,and makes up for the lack of hardware experiment and improve the quality of teaching.