智能天线自适应波束形成算法的研究  

Adaptive Algorithm for Beam Forming of Smart Antenna

作　　者：李丽君[1] 

机构地区：[1]太原科技大学电子信息工程学院,山西太原030124

出　　处：《通信技术》2009年第4期13-15,共3页Communications Technology

摘　　要：智能天线的自适应算法通过迭代运算获取用于波束形成的最优权值矢量时,是否具有较快的收敛速度和较小的稳态误差成为决定波束形成性能的主要因素。据此提出在传统的LMS算法中引入变步长和变换域的思想,采用改进的自适应算法用于波束形成。MATLAB仿真结果表明,该算法具有较快的收敛速度和较小的稳态误差,波束形成的性能更优。The smart antenna adaptive algorithms achieve the best weight vector for beam forming by iterative operation. If adaptive algorithms could achieve faster convergence and lower steady-state error, the performance of beam forming would be much better. In this paper, an improved adaptive algorithm is proposed for beam forming. The proposed algorithm combines variable step size algorithm and transform-domain algorithm. The simulation with MATLAB indicates that the proposed algorithm for beam forming is better than other conventional algorithms, and could achieve faster convergence and lower steady-state error.

关 键 词：智能天线 自适应波束形成算法 变步长算法 变换域算法 

分 类 号：TN821.91[电子电信—信息与通信工程]