基于matab的移动通信智能天线数字波束赋型技术及其仿真.docx

摘 要 随着科技的飞速发展、信息时代的到来，智能天线变得越来越重要。智能天线是自适应滤波和阵列信号处理技术的基础上发展起来的跨学科的高科技技术,它利用波束赋型技术可显著提高基站的接受灵敏度和发射效率,从而大大降低系统内部的干扰和相邻小区间的干扰,较好地增大系统的覆盖范围,扩大系统容量.因此智能天线波束赋型技术的研究具有重要的理论和应用价值. 本文介绍了智能天线基本理论,无线信道的基本特性,随后着重介绍智能天线的结构和工作方式,智能天线相对于传统单天线系统的优点及其智能天线技术在第三代移动通讯中的应用.并对智能天线的型号模型和最优空域滤波的基本原理进行了总结.接着系统地分析讨论了RLS、LMS波束形成算法,了解RLS算法和其他自适应波速形成算法,并完成RLS和LMS算法的Matlab仿真,可得到良好的赋型结果,分析对比RLS和LMS算法性能.智能天线技术已经成为移动通信技术中一个最活跃的研究领域,它对移动通信系统所带来的优势是目前任何技术所难以估量取代的。 【关键词】：智能天线 无线通信 波束赋型 LMS RLS 毕业论文代写 QQ840468512 /clv912 ABSTRACT With the rapid development of science and technology , the information age , smart antennas has become increasingly important. The smart antenna is based on adaptive filtering and array signal processing technology developed interdisciplinary high-tech technology , which uses beamforming technology can significantly improve the base station receive sensitivity and transmit efficiency , and thus greatly reduce interference within the system and interference between neighboring cells , the better to increase the coverage of the system , to expand system capacity . beamforming smart antenna technology, the research has important theoretical and practical values ??. This article describes the basic characteristics of the basic theory of smart antennas , wireless channel , and then focuses on the structure and working methods of the smart antenna , smart antennas compared to traditional single- antenna system , the advantages of smart antenna technology in the third generation mobile communication And model of the smart antenna model and the basic principles of optimal spatial filter . Then systematically analyzed and discussed in the SMI , LMS beamforming algorithm, the RLS algorithm and other adaptive wave velocity form algorithm , and completed the SMI and LMS algorithm Matlab simulation , can get a good vehicle results , analyzing and comparing the performance of the SMI and LMS algorithm . last access to the academic literature related to smart antennas , smart antenna