基于LABVIEW虚拟函数信号发生器毕业设计.doc

毕业设计（论文）题目 基于LABVIEW的虚拟函数信号发生器的设计与研究 摘 要随着计算机软、硬件的发展，计算机与外设之间的数据通信越来越频繁，也越来越便利，虚拟仪器应运而生。从本质上来说，虚拟仪器是仪器技术与计算机技术深层次结合的产物，它强调“软件是仪器”的概念，使用户能够根据自己的需要定义仪器功能，更好的组建自己所需要的测试系统。它是按照信号的处理与采集，数据的分析，结果的输出及显示的结构模式来建立通用信号处理硬件平台。本文就是在这个通用信号处理硬件平台，进行了基于LABVIEW的虚拟函数信号发生器的设计，设计基于LabWIEW软件的虚拟函数信号发生器（能够产生实验室常用的正弦波、三角波、方波、锯齿波信号及白噪声和多频波，任意公式波），并在以设计好的虚拟信号发生器的基础上对所产生的信号做自相关分析，积分，微分分析及相应的频谱分析。关键词：虚拟仪器；Labview；虚拟函数信号发生器 THE DESIGN AND RESEACH OF VIRTUAL FUNCTION SIGNAL GENERATOR BASED ON LABVIEWABSTRACT With the computer hardware and software development, computer peripherals and data communication become more and more frequently and more convenient, virtual instrument came into being. the virtual instrument is a device technology and computer technology combined with the product of deep-seated, it stressed concept that software is the instrument , allowing users to define function their own needsto set up their own test system . It is in accordance with the signal processing and collection, data analysis, the results show that the structure of output and the model to the development of a common signal processing hardware platform. This article is in the common signal processing hardware platform, the design and research of virtual function signal generator based on LABVIEW (commonly used in the laboratory can produce sine wave, triangle wave, square wave, sawtooth signal and white noise and multi-frequency wave, arbitrary wave equation), and designed in a virtual signal generator based on the signal generated by autocorrelation analysis, integral, differential analysis and the corresponding spectral analysis. Keywords: virtual instrument; Labview; virtual function signal generator目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc232596329 第1章 绪 论 1 HYPERLINK \l _Toc232596330 1.1 课题背景及意义 1 HYPERLINK \l _Toc232596331 1.2 波形发生器的发展概况 2 HYPERLINK \l _Toc232596332 1.3 本文主要论文 4 HYPERLINK \l _Toc232596333 第2章 虚拟仪器技术 5 HYPERLINK \l _Toc232596334 2.1 虚拟仪器概