智能天线是移动多媒体通信亟待解决的关键技术，本文研究了一种适用于时分双工蜂窝系统，基于非线性判决反馈空间均衡器和递归最小平方算法的智能天线。提出了双向链路信号对干扰加噪声功率比的算法以及阵列波束方向增益和信干比累积分布函数两种性能评估方法。仿真结果表明：该智能天线可以抵消同波道干扰，改善信干比，减小频率复用系数。

介绍了一种适用于时分双工蜂窝移动系统、基于非线性判决反馈均衡器和递归最小平方算法的环形自适应阵列天线。研究了阵列波束对期望信号的增强和对干扰信号的抵消的形成过程，并分析了方向增益的收敛属性与训练序列的关系。计算机仿真结果表明了波束形成与接收信号到达角度之间的联系，发现了波束收敛所需训练序列的最佳长度。

Interference cancellation is made available by using smart antenna at cellular base stations. Well-distributed cumulative probability of signal-to-interference plus noise power ratio appears to be vital for cellular mobile multimedia communications. A scenario of dual links dynamic power control combined to a solution of smart antenna is proposed to adjust the instant transmission power in terms of the disparity from the favorite range. Simulation results show that this method is quite effective to improve the cumulative distribution probability performance. Meanwhile, accompanying low power consumption is also obtained at both base stations and mobile stations.

In this paper, an 8-elment adaptive array,which based on non-linear decision feedback equalizer and recursive least square is introduced for the post 3rd Generation TDMA/TDD mobile communications. The forming of beam pattern is declared the performance of boosting up the desired directions and canceling down the interference directions. Then the relationship between training sequence and beam pattern convergence is analyzed. Computer simulation results show the affiliation of beam forming and the directions of arrivals. The best length of training sequence for bean convergence is found.

针对TDMA/TDD公众蜂窝移动通信系统的特征，运用了一种智能天线的解决方案，研究并提出一种动态时隙指派的算法。目的是让无线资源指派根据空时最佳特性进行量化评估并优选，然后把最优载波和时隙分配给需要的移动终端。系统级仿真表明，本算法和传统时隙分配算法相比，移动通信网络的综合性能指标得到的显著的改善。