基于LabVIEW的通信原理实验仿真软件设计

发布时间：2018-04-11 01:28

本文选题：LabVIEW + 实验平台　；参考：《北京化工大学》2015年硕士论文

【摘要】：理论和实验的相互促进,可以很好的提高学生的综合水平。传统的教学实验受制于传统实验箱,测量仪器的数量和维护状态,不能很好的完成实验教学的任务,无法达成对学生能力的培养。以“软件即仪器”作为核心理念的虚拟仪器技术的应用,可以很好的解决这些问题。同时随着通信技术的进步,可以进行远程访问和操作的虚拟实验室使得使用者能够随时随地完成实验项目,可以和传统的实验教学进行相互补充,很好的提高了理论知识的教学效果。本文以LabVIEW为开发平台,采用了模块化编程,实现了通信信号与通信电路实验平台。LabVIEW前面板中的控件对现实物件的高仿真度,使得设计的实验平台拥有良好的交互界面,获得和实际实验相仿的感受。本平台的纯软件对模拟通信和数字通信中主要的调制解调功能进行了设计仿真,并通过模块化设计,利用状态机分别集成为模拟通信和数字通信实验模块。再通过逻辑函数控制前面板界面的操作逻辑,使得各个实验模块部分的操作界面互补干扰,根据相对于的模块,显示相对应的控件。在软件和硬件相结合的部分,通过将声卡作为数据采集卡,设计了实验室中常用的双通道示波器和信号发生器,同时内置了模拟信号源,可以在音频范围实现对应的功能。最后通过动态链接的方法,通过子面板,将这些模块集合在一起,使用远程控制面板的方法,对这个系统进行了网络发布,实验人员通过浏览器就可以访问本实验平台,完成相应的实验操作。
[Abstract]:The mutual promotion of theory and experiment can improve the comprehensive level of students.The traditional teaching experiment is limited by the traditional experiment box, measuring the number of instruments and maintaining the state, can not complete the task of experimental teaching well, can not achieve the cultivation of students' ability.The application of virtual instrument technology based on "software is instrument" can solve these problems well.At the same time, with the development of communication technology, the virtual laboratory, which can conduct remote access and operation, enables users to complete the experimental projects anytime and anywhere, and can complement each other with the traditional experimental teaching.It improves the teaching effect of theoretical knowledge.This paper takes LabVIEW as the development platform, adopts the modularization programming, realizes the communication signal and the communication circuit experiment platform. LabVIEW in the front panel control to the reality object high imitation degree, causes the design experiment platform to have the good interactive interface.Get a feeling similar to that of the actual experiment.The pure software of this platform designs and simulates the main modulation and demodulation functions in analog communication and digital communication, and integrates the state machine into analog communication and digital communication experiment module by modularization design.Then the logic function is used to control the operation logic of the front panel interface, which makes the operation interface of each experimental module complementary to each other. According to the relative module, the corresponding control is displayed.In the part of the combination of software and hardware, the sound card is used as the data acquisition card to design the dual-channel oscilloscope and signal generator commonly used in the laboratory. At the same time, the analog signal source is built in, which can realize the corresponding function in the audio range.Finally, through the method of dynamic link, through the subpanel, these modules are gathered together, using the method of remote control panel, the system is published on the network, the experimenter can access the experimental platform through the browser.Complete the corresponding experimental operation.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN911-33;TP391.9

【参考文献】