基于Unity3D的微波暗室环境下天线测量虚拟实验系统设计与实现

Design and Implementation of a Virtual Experiment System for Antenna Measurement in Microwave Anechoic Chamber Based on Unity3D

利用虚拟现实技术,以Unity3D为开发引擎,C#为脚本语言,3ds Max为建模工具,以一个典型的实际天线测量系统为原型,以真实实验为依据,模拟在微波暗室环境下天线测试的操作流程和几种常见天线的测量结果,开发一个虚拟实验系统,实现微波暗室环境下天线测量的微波虚拟实验。系统采用图形化用户界面,模型逼真,能够生成Windows环境下可执行文件,在PC机上运行。通过模拟交互,使用者可利用该系统对微波暗室的组成、布局以及功能获得直观认知,了解天线测试系统及测试过程,并能对几种常用天线或自定义天线进行模拟测量。系统也可辅助教师进行理论教学与课堂演示。在全面介绍系统功能的基础上,以喇叭天线为例,介绍天线测试过程3D模拟动画的实现,以及系统各主要交互功能的技术实现。

A virtual microwave experiment system,antenna measurement in microwave anechoic chamber,was developed by applying virtual reality technology,using Unity3D development engine,C#script language and 3ds Max modeling tool.The development of the system is based on a typical actual antenna measurement system and according to the practical experiments,simulating operation process of antenna measurement in microwave anechoic chamber and the measurement results of several conventional kinds of antennas.The system has graphical interface and vivid models.It can be generated as an executable file in Windows environment and run on PC machine.Users can acquire intuitive knowledge of composition,layout and function of microwave anechoic chamber,and can understand antenna testing system and the process of antenna testing.By interacting with the system,users can virtually measure several conventional kinds of antennas and custom antennas.It can also aid teachers’theoretical teaching and classroom demonstration.Taking horn antenna as an example,implementation technologies of 3D simulation animation of the process of antenna testing and the main interactive functions of the system are emphatically introduced after fully stating the functions of the system.