摘要
为了让学生很好地掌握"信号的频谱分析",建立信号"频域"的概念,开好"信号的频谱分析实验"尤为重要。为此,把计算机技术、虚拟仪器技术、多媒体技术三者融为一体,研制了"基于虚拟仪器的实验教学系统",建立了虚拟实验教学平台。基于这个虚拟实验教学平台,制作"信号频谱虚拟分析"的实验教学课件。教学实践证明:该实验方法不仅很好地实现了信号的频谱分析,具有重放和再现实验过程和实验现象的特点,而且能同时观察到信号的时/频图,从而强化了实验结果,收到了很好的效果。
In order to make students mastery the contents of 'signal frequency spectrum analysis', establishing the concept of frequency field, it is important to set up the experiment of signal frequency spectrum analysis. Therefore, computer techniques, multimedia techniques and virtual instrument techniques are interfused to develop 'the experimental teaching platform based on virtual instrument'; and experimental teaching coursewares are made. The teaching practice shows that the system can not only replay and playback experimental process, but also can show the signal's waveform and frequency spectrum, which beefs up experimental results.
出处
《实验室研究与探索》
CAS
2004年第6期56-57,63,共3页
Research and Exploration In Laboratory
基金
重庆市教委教改项目(0027)
重庆大学教改项目(0321)
关键词
虚拟仪器
频谱分析
实验教学
virtual instrument
frequency spectrum analysis
experimentel teaching
