毫米波多频段人体阻隔效应测量与建模

发布时间：2017-12-28 07:34

本文关键词：毫米波多频段人体阻隔效应测量与建模　出处：《山东大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着无线通信系统的发展,6 GHz以下频谱资源极度匮乏。第五代(5G,the fifth generation)无线通信系统的发展对频谱资源提出了新的需求,毫米波无线通信凭借其频谱资源丰富、传输速率高、传输质量高、传输安全性高以及器件可微小化等优势,成为了 5G通信的关键技术之一。毫米波因其传输衰减大、绕射能力差等特点更有可能应用于室内无线通信场景。在毫米波室内无线通信场景中,由于系统中发射天线放置高度相对较低、发射能量相对较小,室内人体活动的阻隔效应会引起十分严重的传输损耗,为了对毫米波室内无线通信建立准确的信道模型,需要对人体阻隔效应进行测量与建模。本文着眼于对多频段(11 GHz、16GHz、26 GHz、28 GHz、32 GHz)下毫米波室内无线通信系统中由一到两个人的移动引起的阻隔效应进行测量与建模。本文首先总结人类社会通信发展历程以及毫米波无线通信的特性。其次,总结了无线通信中通信系统、信道测量、信道参数提取、信道建模及信道特性等相关知识。再次,研究人体阻隔效应测量活动及4种常见的研究模型,分别为METIS(mobile and wireless communications enablers for the twenty-twenty information society)提出的劈尖边缘绕射(KED,knife edge diffraction)模型、基于基尔霍夫绕射公式(Kirchhoff diffraction equation)的劈尖边缘绕射模型、几何绕射理论(GTD,geometry theory of diffraction)模型以及高斯(Gaussian)拟合模型。最后,本文介绍了毫米波室内无线通信中人体阻隔效应的测量场景、测量设备、测量操作以及数据处理方法,对多频段、多种阻隔情况下的阻隔效应进行建模及结果分析,总结结论及进行展望。本文主要工作为总结已有的人体阻隔效应测量工作,并依据研究模型,制定了 4种测量方案,对11 GHz、16 GHz、26 GHz、28 GHz、32 GHz多个频段的人体阻隔效应进行测量。通过对测量结果和模型仿真结果分析对比,得出相应的结论。
[Abstract]:With the development of wireless communication systems, the spectrum resources below 6 GHz are extremely scarce. The fifth generation (5G the, fifth generation) the development of wireless communication systems has put forward new demands on the spectrum resources, millimeter wave wireless communications with its rich spectrum resources, high transmission rate, high transmission quality, high safety and transmission device can be miniaturized and other advantages, has become one of the key technology of 5G communication. Mm wave transmission attenuation and diffraction ability characteristics are more likely used in indoor wireless communication systems. In millimeter wave indoor wireless communication scenarios, due to a system of transmitting antenna placement height is relatively low, the emission energy is relatively small and the barrier effect of indoor human activities will cause the transmission loss is very serious, in order to establish the millimeter wave indoor wireless communication channel model is accurate, the need for measuring and modeling of human barrier effect. This paper focuses on the measurement and modeling of the blocking effect caused by the movement of one to two people in the multi millimeter wave indoor radio communication system with multi band (11 GHz, 16GHz, 26 GHz, 28 GHz, 32 GHz). This paper first summarizes the development process of human social communication and the characteristics of the millimeter wave radio communication. Secondly, it summarizes the related knowledge of communication system, channel measurement, channel parameter extraction, channel modeling and channel characteristics in wireless communication. Again, the study of human activity measurement of barrier effect and 4 kinds of common research model, respectively METIS (mobile and wireless communications enablers for the twenty-twenty Information Society) sharp edge diffraction splitting of (KED, knife edge, diffraction) model based on Kirchhoff diffraction formula (Kirchhoff diffraction equation) wedge edge diffraction, geometric model theory of diffraction (GTD, geometry theory of diffraction) and Gauss (Gaussian) model fitting model. Finally, this paper introduces the measurement scenarios, measuring devices, measurement operations and data processing methods of the barrier effect in millimeter wave indoor wireless communication, modeling and analyzing the blocking effects in multi band and multi barrier situations, summarizing the conclusions and looking forward to the future. The main work of this paper is to summarize the existing measurement work of human barrier effect. Based on the research model, 4 measurement schemes have been worked out, and the barrier effect of 11 GHz, 16 GHz, 26 GHz, 28 GHz, 32 GHz has been measured. Through the analysis and comparison of the results of the measurement and the simulation results of the model, the corresponding conclusions are obtained.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN928

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