毕业论文--车载信息系统—汽车电磁环境建构与分析.doc
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论文题目:车载信息系统——汽车电磁环境建构与分析
专业: 通信工程
学生: 王涛 签名:
指导教师:刘健 签名:
摘 要
针对汽车电磁环境的复杂性,本文讨论了使用仿真软件进行汽车电磁环境建构与分析,主要面向汽车天线布局设计。主要以100M单极半波阵子车载天线为研究对象,通过以矩量法(MoM)为基础的三维电磁场仿真软件FEKO仿真分析了汽车电磁环境,并进行车载天线特性分析,给出了s11参数和辐射方向图等部分计算与分析结果,反映出了车身对天线本身特性的影响,并通过比较半波阵子天线在车体不同位置上性能的变化,指出了天线最佳安装位置。重点分析了汽车车身及天线安装位置对天线辐射性能的影响,为车载天线的设计提供了部分数据和分析方法,此研究具有十分重要的现实意义。
【关键字】电磁环境,天线,仿真
【论文类型】系统设计
Title:Telematics—Construction and analysis of automotive electromagnetic environment
Major: Communication Engineering
Name:Wang Tao Signature:____________
Supervisor:Liu Jian Signature:____________
ABSTRACT
With respect to the complexity of Electromagnetic environment on automobile, we construct and analyze Electromagnetic model on automobile based on simulation software with particularity of the antenna design and distribution analysis over an automobile out-figure. We put study focus on the car-carried monopole antenna in specific for the frequency at 100MHz. For that, Feko, a 3D Electromagnetic simulation suite in the theory of Moment of Method (MoM), is adopted to figure out antenna characteristics, revealing parameters such as S11 and radiation patterns, which verify that body construction of an automobile will do affect antenna and antenna performance. The optimal place for antenna mount on an automobile is forwarded through making comparison of monopole antenna抯 performance on different automobile places with emphasis on the variation of radiation characteristics. The study comes forward some data and analysis method which is virtually with significant meaning for the real application.
【Key words】Electromagnetic environment, Antennas, Simulation
【Type of Thesis】System design
引言
随着科技的进步,人类社会已步入信息社会。信息的流通十分重要,而信息的流通依赖于通信技术的发展。过去人们在信息流通中更关心的是发射和接收系统本身的性能,如提高发射天线的发射性能和提高接收天线的接收性能。但随着信息流通的不断加大,通信系统中所用的电子设备的种类和数量也不断增大,因而,单纯一味的考虑如何提高设备的性能已经不能满足现实需要了,还必须考虑周围环境的影响,只有兼顾这两者之间的关系才能使一个通信系统正常工作,达到信息传送顺畅的目的。
车载信息系统的广泛
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