学生自主实验用虚拟频谱分析仪方案设计  

Project Design of Virtual Spectrum Analyzer for Students' Independent Experiment

作　　者：李继芳[1] 王路跖[1] 王哲[1] 黄元庆[1] 

机构地区：[1]厦门大学物理与机电工程学院,福建厦门361005

出　　处：《实验室研究与探索》2009年第3期239-242,共4页Research and Exploration In Laboratory

基　　金：厦门大学科技创新项目(0620-Y07016)

摘　　要：介绍了学生自主实验用虚拟频谱分析仪的设计方案。该方案以PC机为硬件平台,以图形化编程语言LabVIEW为软件平台。整个系统由原始信号产生模块和频谱分析模块两部分组成,原始信号由虚拟信号发生器和声卡信号采集2种方式产生;频谱分析模块首先对上述信号进行加窗函数处理,然后进行频域分析,最后输出处理后的波形和数值结果。This paper introduced a virtual spectrum analyzer design, with which the students can have experiment on their own. The project is based on PC, its hardware platform, and LabVIEW which is a graphical programming language for software platform. The entire system is composed of two parts： the original signal source module and spectrum analy- sis module, the original source can be generated by two sub-ways： the virtual signal generator and signal acquisition. Spectral analysis module first processes the signal with the window function, and then carries out frequency-domain anal- ysis, the final output is the post-wave and numerical results.

关 键 词：频谱分析 虚拟仪器 LABVIEW 

分 类 号：TP206[自动化与计算机技术—检测技术与自动化装置]