【作者】 张厉；

【导师】 韩一石；

【作者基本信息】 广东工业大学 ， 通信与信息系统， 2011， 硕士

【摘要】 随着人类社会信息化进程的提高,一方面人们对多媒体宽带业务的需求日益增强,另一方面目前无线通信拥塞的微波频段满足不了如此丰富的业务。因此,无线通信急需通过扩展频段解决两者之间的矛盾,毫米波频段能满足无线通信的高速数据传输,而光纤拥有丰富的频段资源和抗干扰能力,毫米波与光纤传输技术相融合就成为了研究的热点。光纤无线通信(Radio Over Fiber,ROF)系统充分结合光纤和无线通信系统的优点,可以提高容量,覆盖范围和可移动性,而且可以为固定和移动终端用户提供更多的业务。毫米波产生、传输和基站简化技术是毫米波ROF系统的关键技术,本文的主要工作就围绕这两方面来展开：首先简要介绍了毫米波通信与ROF通信的特点以及应用；然后详细介绍了毫米波生成和传输技术,阐明了这些技术的原理,比较了这些技术各自的优缺点以及讨论了这些技术的适用范围；其次着重研究了几种毫米波生成技术方案的设计及分析包括相位调制毫米波生成技术、并行调制结构毫米波生成技术和综合光学调制技术,理论和仿真相结合验证这些方案的可行性,并构建ROF下行链路系统,通过数值分析色散对综合光学调制技术产生毫米波的影响；论文最后研究基站简化技术,提出两种新的基于并行调制结构和基于综合光学调制技术的60GHz-ROF全双工通信系统,通过模拟仿真、性能测试,并比较既有的成熟技术方案,结果表明论文系统在传输距离、传输功率、抗色散性能以及系统成本等方面具有明显优势。更多还原

【Abstract】 With the improvement of information process for human society, on the one hand the multimedia broadband services needed for people are in demand increasingly; on the other hand the currently congested microwave band of wireless communications can’t meet the needs to such various businesses. Therefore, extending the frequency band is in great demand for wireless communications to solve the contradiction between them, among which millimeter-wave frequencies can satisfy the needs of high-speed data transmission for wireless communications and optical fiber is of a variety of frequency resources and great anti-interference ability, and the integration of millimeter-wave and optical fiber transmission technologies is becoming the research focus. The Radio Over Fiber (ROF) system fully combining the advantages of optical fiber with wireless communications system can not only improve capacity, coverage and mobility, but also can provide more business for fixed and mobile terminal users.The generation and transmission technology of millimeter-wave and base station simplified technology are the key technologies for millimeter-wave ROF system, and this paper mainly focus on these two aspects to spread around:Firstly, the features and applications of millimeter-wave and ROF communications are briefly introduced. Secondly, millimeter-wave generation and transmission technologies are depicted in detail with the illustrated principles of these technologies, the advantages and disadvantages of these technologies are compared and the applicable scope of these technologies respectively. Further, we focus on the design and analysis of several millimeter-wave generation schemes including phase modulation millimeter wave generation technique, parallel modulation structure millimeter wave generation technology and integrated optical modulation technology. The feasibility of these solutions is verifed through combining theory and simulation, ROF downlink system is constructed, numerical analysis on effect of dispersion on integrated optical modulation technology is fulfilled. Lastly, the base station simplified technology is innovatively studied to propose a 60GHz-ROF full-duplex communication system based on the parallel modulation structure millimeter-wave generation technique and the integrated optical modulation technology. Comparing with the existing technology scheme on transmission performance through simulation and performance testing, the result has shown that the system gets an obvius advantage in transmission power, transmission distance, dispersion tolerance and system cost.更多还原