信号与系统课程虚拟仿真教学探索与实践

摘要

Along with the development of information technology, computer simulation has been one of important approaches in CAI (computer aided instruction). The course of signal and system is a key course of specialty in electronic information science. With considering the characteristics of the signal and system course and focusing on improving the teaching effect and upgrading the practical teaching efficacy, seven typical virtual simulation teaching projects are designed based on teaching experiences. The projects can be divided into: basic ones, comprehensive ones, exploratory and innovative ones. Design and implementation of the virtual simulation projects are done in the MatLab Simulink visual environment. Simulink-based simulation and practical teaching feedbacks show that the virtual simulation projects are intuitive and easy to operate, and good response results are received from the students. Finally, two possible teaching reforms are proposed for reference and consideration.%伴随着信息技术的发展,计算机仿真方法已成为现代教育技术的重要手段之一.信号与系统课程是电子信息类本科专业的一门核心基础课程.针对信号与系统课程特点,着眼于提高教学效果和改进实践教学,并结合教学实践经验,设计了多类型的虚拟仿真教学项目,其大致可分为:入门基础型、综合型以及探索创新型等.虚拟仿真项目采用MatLab Simulink 软件,在可视化仿真设计环境中实现.MatLab Simulink仿真以及实践教学反馈结果表明:所设计的虚拟仿真教学项目过程直观明了、可操作性强,近年来在所任教的信号与系统课程教学实践中反馈良好.同时,结合学生反馈建议和意见以及教学实践经验,提出了两种教改方案,以供同行参考.