摘要
利用智能天线可以有效地减少多径效应所带来的影响,同时可以对干扰信号起到删除和抑制的作用,最终达到降低接收端误码率的目的。为达到这一目的提高系统的性能,文中提出了基于LMS的自适应智能天线,首先介绍了自适应智能天线的基本原理;其次,对最小均方误差算法和自适应滤波器作了详细的分析;最后,对文中提出的LMS自适应处理算法进行了仿真。仿真结果表明:使用基于LMS的自适应智能天线后,与未使用智能天线相比,信号在接收端的误码率得到很大的降低,从而验证了采用此自适应处理方法的智能天线系统的有效性和实用性。
Intelligent antenna can reduce the impact caused by the multipath effectively,it also can eliminate and restrict the interference,and ultimately to reduce the bit error rate at the receiver.To achieve this purpose and improve the system performance,this paper proposes an adaptive intelligent antenna based on the least mean square,and firstly,introduces the basic principles of adaptive intelligent antenna;Secondly,analyses the least mean square algorithm and the adaptive filter ;Finally,the proposed adaptive algorithm in this paper is simulated.The simulation results illustrate that：the using of adaptive intelligent antenna has a lower bit error rate than that is not used at the receiver,so we make a conclusion that the adaptive alogrithm applied in the intelligent antenna system is effective and practical.
出处
《电子测试》
2011年第6期86-89,共4页
Electronic Test
关键词
智能天线
LMS
自适应
Intelligent antenna
Least Mean Square
Adaptive
