虚拟实验在"信号与系统"课程教学中的应用

信号与系统实验是辅助该课程教学的一种有效手段，传统的硬件电路实验灵活性和实时性较差，因此利用软件技术构建虚拟实验是提高该课程教学质量及实验效率、降低实验成本的一条有效途径。虚拟实验不仅可以在教学过程中演示，帮助学生理解抽象的概念和公式，还可以由学生在PC机上单独完成各种信号与系统的实验仿真，培养学生动手创新的能力。本文介绍了采用Matlab语言构建的8个虚拟实验，并给出了利用Matlab实现信号与系统分析的具体实例。

Application of Virtual Experiment in Teaching of Signal and System

The experiments are effective to the teaching of the signal and system, however the traditional hardware experiments are not flexible or timely, building virtual experiment by software techniques is an efficient way to improve the efficiency of teaching and experiment design. Virtual experiments can be demonstrated in the teaching process for helping students understand profoundly the ideas and equations in the signal and system. Furthermore students can complete these virtual experiments using their own PC independently, which can develop their innovative abilities. The eight virtual experiments designed by Matlab are introduced in this paper, and some examples to implement the analysis of the signal and system are given in this paper.