无线系统中的智能天线 下载

无线系统中的智能天线:　本文介绍了智能天线在未来移动通信系统中的重要作用. 分别介绍了多波束天线和自适应天线阵,阐明了智能天线的定义、组成. 着重介绍了在自适应天线阵通信系统中的时空信号模型、空间信道模型和时空通信理论,比较了智能天线中的智能算法. 最后,结合智能天线技术的应用进展,探讨了实现智能天线的难点和发展前景.
关键词: 　智能天线; 移动通信系统; 数字波束形成

Abstract : 　In this paper ,the role of smart antenna in future mobile communication system is introduced. We introduced multibeam and adaptive array antenna ,giving the definition and structure. The spatial and temporal communication theory ,spatial and temporal channel model and space - time signal model are emphasized ,the algorithms in smart antennas are compared. Finally application prospect and difficulties are discussed.
Key words : 　smart antenna ;mobile communication system;digital beam forming