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一种新的智能天线波束形成算法
引用本文:王丽娜,王兵,周贤伟. 一种新的智能天线波束形成算法[J]. 电波科学学报, 2007, 22(2): 351-354
作者姓名:王丽娜  王兵  周贤伟
作者单位:北京科技大学,信息工程学院,北京,100083;哈尔滨工业大学,黑龙江,哈尔滨,150001
摘    要:
在DS/CDMA系统中采用智能天线技术可以增加系统的容量,提高抗干扰性能.智能天线技术的核心是波束形成算法,基于遗传算法提出了一种新的智能天线波束形成算法,算法采用了内插和外推两种交叉算子,克服了遗传算法的早熟收敛问题,提高了全局收敛能力.研究结果表明,提出的智能天线波束形成算法具有良好的收敛性和稳定性,可用于DS/CDMA系统抵抗干扰的影响.

关 键 词:智能天线  波束形成算法  CDMA
文章编号:1005-0388(2007)02-0351-04
收稿时间:2005-09-29
修稿时间:2005-09-29

A novel beamforming algorithm of smart antenna
WANG Li-na,WANG Bing,ZHOU Xian-wei. A novel beamforming algorithm of smart antenna[J]. Chinese Journal of Radio Science, 2007, 22(2): 351-354
Authors:WANG Li-na  WANG Bing  ZHOU Xian-wei
Affiliation:1. Information Engineering School, University of Science and Technology Beijing , wln_ustb@126, corn, Beijing 100083, China;2. Harbin Institute of Technology, Harbin Heilongjiang 150001, China
Abstract:
Smart antenna can expand the capacities and improve the anti-interference performance of DS/CDMA systems. Beamforming algorithm is a crucial problem. A novel beamforming algorithm of smart antenna for DS/CDMA system is proposed, which is based on genetic algorithm. The algorithm adopts interpolation and extrapolation cross operators. The premature convergence problem of conventional genetic algorithm is overcome and the performance of global convergence is enhanced. The simulation results show that the proposed beamforming algorithm exhibits good convergence and stability. DS/CDMA systems can use this algorithm to counteract interference.
Keywords:CDMA
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