【摘要】 论述了现有系统面临着提高系统容量和改善通信质量的双重压力，而智能天线技术引入空分多址的概念，能够有效地提高系统容量。分析了智能天线技术的原理；给出了两种时分多址系统中的智能天线系统结构和比较；介绍了智能天线技术中的自适应波束合成算法。更多还原

【Abstract】 The existing system has the double pressure of both increasing system capacity and improving communications quality． Smart antenna system introduces the concept of space division multiple access SDMA and can increase effectively system capacity． This paper analyses smart antenna technology principle gives the smart antenna system structure of two types of SDMA system and their comparison introduces adaptive beam composition algorithm of smart antenna technology．更多还原