数字电子技术综合性虚拟仿真实验教学改革

Research on Comprehensive Virtual Simulation Experiment Reform of Digital Electronic Technology

将数字电子技术综合性虚拟仿真实验案例——基于DDS的任意波形发生器应用于实验教学,该教学案例几乎涵盖了数字电子技术理论课程中所有核心知识点,具有很强的综合性,便于学生将理论课程中碎片化的知识点构建成相对完善的知识体系;正弦波、方波、三角波、任意波形以及李萨如图形等实验结果可通过示波器直观观察,具有很高的演示度,激发了学生的学习兴趣。实践表明,综合性虚拟仿真实验案例教学方法提高了学生设计复杂数字电路系统的能力,培养了学生的实践创新和工程应用能力,取得了良好的教学效果,有利于教学水平的提高。

Digital electronic technology experiment is one of the specialized courses for the student majoring in electronics or related. The arbitrary waveform generator based on DDS is used to the digital electronic technology comprehensive virtual simulation experiment. This teaching case covers almost all core knowledge in the theory of digital electronic technology course,and has characteristic of strong comprehensive. It is convenient for students to master theoretical knowledge fragmentation in the course to build into a relatively complete knowledge system. Experiment results such as sine wave,rectangular wave,triangle wave,arbitrary wave and Lissajous figures can be observed through the oscilloscope. The students ＇ interests in learning are stimulated due to high presentation of experiment results.Practice shows that,comprehensive virtual simulation case can improve the students＇ ability to design complex digital circuit system. It can also cultivate the students＇ ability of practical innovation and engineering application. It achieved good teaching effect,and was beneficial to the improvement of teaching level.