摘要
针对信号与系统教学中硬件实验存在的缺点,提出采用硬件实验和虚拟实验相结合的形式,将LabVIEW8.5用于信号的频域分析教学,以快速傅里叶变换FFT、信号的频谱分析为例,说明了虚拟实验教学的特点和作用,并给出了虚拟实验的流程图和虚拟仪器前面板的构成形式。通过实例说明采用LabVIEW8.5软件对信号的频域分析进行仿真与性能分析,可以改善实验条件和效果,为信号与系统的实验教学提供了一个新的途径。
This paper, with regard to the shortcomings in the Signal and System hardware experimental teaching, puts forward a methed combining hardware experiment with virtual experiment, in which LabVIEW8.5 signal will be used for the frequency domain analYyis teaching. Take, fast Fourier transform（FFT）, the signal spectrum analysis as an example, it illustrates the virtual experiment teaching features and functions, virtual experiments and gives the flowchart and virtual instrument front panel composition form. It proved that, illustrated by LabVIEWS. 5 software signal frequency-domain simulation and analysis of performance analysis, experimen- tal conditions and results for the signal can be improved, which provides a new way for the experimental teaching system.
出处
《实验科学与技术》
2009年第3期7-9,共3页
Experiment Science and Technology
