智能天线发展及在TD-SCDMA中应用.docVIP

目 录 摘要 1 Abstract 2 第一章 智能天线简介 3 1.1引言 3 1.2智能天线的提出及基本概念 4 1.3智能天线的分类及特点 5 1.4智能天线的组成 5 第二章 智能天线的基本机构和工作原理 6 2.1基本结构 6 2.2工作原理 6 2.3智能天线的发展阶段 7 第三章 智能天线的关键技术 8 3.1智能化接收技术 8 3.2智能化发射技术 8 3.3动态信道分配 9 3.4下一代移动通信中的时空多用户检测技术 9 第四章 智能天线的用途及应用前景 10 4.1智能天线用途 10 4.2智能天线在3G中的应用前景 11 4.3第三代移动通信系统之TD-SCDMA 11 4.3.1技术概述 12 4.3.2系统结构 12 4.3.3关键技术 12 4.4 智能天线在TD-SCDMA系统中的应用 14 第五章 结束语 15 参考文献 16 附录： 17 谢 词 21 摘要 随着全球通信业务的迅速发展，作为未来个人通信主要手段的无线移动通信技术引起人们极大关注。如何消除同信道干扰(CCI)、多址干扰(MAI)与多径衰落的影响成为人们在提高无线移动通信系统性能时考虑的主要因素。智能天线利用数字信号处理技术，产生空间定向波束，使天线主波束对准用户信号到达方向，旁瓣或零陷对准干扰信号到达方向，达到充分高效利用移动用户信号并删除或抑制干扰信号的目的。与其它日渐深入和成熟的干扰削除技术相比，智能天线技术在移动通信中的应用研究更显得方兴未艾并显示出巨大潜力。ABSTRACT With the global communications business, the rapid development of personal communications as a major means of future wireless mobile communication technology and cause for great concern. How to eliminate interference with the channel (CCI), multi-access interference (MAI) and multipath fading effects of the people in improving the performance of wireless mobile communication system of the main factors to consider. Smart antennas using digital signal processing technology, resulting in beam spatial orientation, so that the main beam antenna at the user direction of arrival signal, or zero subsidence side lobe interference signals arrive at the purpose of the direction of full efficient use of mobile users and to delete or suppress the signal interference. With other growing depth and maturity deletion interference technology, smart antenna technology in mobile communication has become more apparent after the application of the ascendant and shows great potential. China submitted the third generation mobile communication standard TD-SCDMA system is one of the key technologies of smart antenna technology; paper details the history of smart antennas and their development, in-depth analysis of smart antenna in TD-SCDMA application, the last of the smart antenna outlook application. Key words: TD-SCDMA、 smart antennas 第一章 智