墙体构件的IMS频段传输特性计算与测量
墙体构件的IMS频段传输特性计算与测量(任务书,开题报告,外文翻译,论文13000字)
摘要
研究墙体构件对IMS频段电磁波传输特性的影响可以为墙体建造时提供参考，以满足人们对室内外无线通信质量的要求。本题目开展室内外无线信道特测量研究，分析建筑物墙体构建的特性。选取典型的墙体，开展常用IMS的传播特性测量，得到并分析测量结果。
首先，论文应用电磁波和电磁场的理论知识分析了电磁场问题中场量、源量和媒质之间的关系，，在理论上分析了媒质是如何对电磁波造成衰减的。
在进行了理论分析后，介绍了一些常用的路径损耗模型，并利用路径损耗模型对墙体的衰减进行预测。最终，设计了一个测量系统对体育馆的两面墙体进行了测量，得出玻璃墙体的衰减约为5.27dB，混凝土墙体的衰减约为16.97dB，将获得的测量数据进行处理后绘制了电磁波衰减随距离的变化关系。完成两面墙体的测量后，补充了自由空间下的衰减测量。
关键词：墙体；电磁波；损耗；测量
Abstract
The study of the influence of wall components on the IMS band electromagnetic wave transmission characteristics can provide reference for the construction of the wall, in order to meet the requirements of the quality of indoor and outdoor wireless communication. This topic requires us to carry out the indoor and outdoor wireless channel measurement research and analysis of the characteristics of building wall construction. The typical wall is selected to carry out the measurement of propagation characteristics on the common IMS band, then the analyzed results are obtained. [资料来源：http://doc163.com]
First of all, the thesis analyzes the relationship of the electromagnetic field, source and the medium. Then interpreting the media is how to cause the attenuation of electromagnetic waves.
After the theoretical analysis, some common path loss models are introduced, and the attenuation of the wall is predicted by the path loss model. Ultimately, the design of the a measurement system of a gymnasium on both sides of the wall were measured, that of glass wall attenuation is about 5.27dB, attenuation of the concrete wall is about 16.97dB, measurement data will be processed after rendering the electromagnetic wave attenuation with distance of the change. After the measurement of both sides of the wall, the measurement of attenuation in free space is added.
Key words:Wall；electromagnetic wave；attenuation；measure
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目录
摘要 I
Abstract II
第1章绪论 1
1.1 研究背景及意义 1
1.2 研究现状 1
1.3 本文主要工作及文章结构 2
第2章墙体对微波衰减的理论分析 3
2.1 麦克斯韦方程组 3
2.2 媒质的电磁参数 3
2.2.1复介电常数 4
2.2.2复磁导率 5
2.2.3损耗角正切 5
2.3 菲涅尔定律 5
2.4 本章小结 6
第3章路径损耗模型的分析 7
3.1 路径损耗的简介 7
3.1.1大尺度衰减 7
3.1.2 小尺度衰减 8
3.2 常见的路径损耗模型 8
3.2.1室外模型 8
3.2.2 室内路径损耗模型 9
3.3 本章小结 10
第4章实地测量 11
4.1 测试方法分析 11
4.2 测试系统 11
4.2.1 测量设备 12
4.2.2测试环境 14
4.3 墙体实地测量情况 15
4.3.1实地测量一 15
4.3.2实地测量二 19
4.3.3实地测量三 21
4.4结果分析 24
4.5 本章小结 24
第5章总结与展望 25
参考文献 26
致谢 28 [资料来源：https://www.doc163.com]