毕业论文--基于LabVIEW的虚拟频谱仪的设计与实现

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1、 I 本科毕业论文（设计） 题 目 基于 LabVIEW 的虚拟频谱仪的设计与实现 指导老师 职称 学生姓名 学号 专 业 班 级 院 (系) 完成时间 II 基于基于 LabVIEWLabVIEW 的的虚拟虚拟频谱仪的设计与实现频谱仪的设计与实现 摘摘 要要 LabVIEW是一种有效的运用虚拟仪器设计技术来进行虚拟仪器开发的计算机 应用软件，本设计是在计算机的平台上，把虚拟仪器技术、信号与系统分析和 LabVIEW软件等相结合而设计出的虚拟频谱仪，其主要目的是对信号进行频谱分 析。用LabVIEW软件自身产生的仿真信号模块发出信号，并通过LabVIEW软件内的 其他模块来实现信号的采集、滤波

2、、傅里叶变换和频谱分析。利用LabVIEW软件 来设计虚拟仪器，可以利用其图形化的编程语言，灵活的编程思维，设计出不同 功能的虚拟仪器。在工业生产中，虚拟仪器的应用为信号和数据的测量及控制提 供了方便，它可以代替一些传统的测量仪器来实现对信号的分析与处理功能，在 这种情况下，对节约成本、提高资源效率要求极高的社会来说，虚拟仪器的发展 为人们带来了很大社会效益。 关键关键词词：LabVIEW；虚拟仪器；信号生成；信号采集；信号分析 III The design and implementation of Virtual Spectrum Instrument Based on LABVIEW A

3、BSTRACT LabVIEW is a kind of effective using virtual instrument design technology for virtual instrument developed of computer application software, this design is in the platform of computer, combining with virtual instrument technology, signal and system analysis and the LabVIEW software to design

4、 a virtual frequency spectrum instrument, its main purpose is the spectrum analysis for the signal . Using the LabVIEW application software module sends a signal to the other modules, and through the LabVIEW software achieve the signal acquisition, filtering, Fourier transform and spectrum analysis.

5、 Using LabVIEW software to design the virtual instrument, you can also use the graphical programming language, the flexible program thinking, to design the different function of virtual instrument. In industrial production, the application of virtual instrument for the signal and the data of measure

6、ment and control provide a convenient, it can replace some traditional measuring instruments to achieve the function of signal analysis and processing, in this case, saving the costs and improving the efficiency of resource requirement to the society, the development of the virtual instrument for the people are all bring great social benefit to people. KEYWORDS LabVIEW ;Virtual Instrument;signal gen