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移动通信中智能天线技术的研究 被引量:8
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作者 吴宏瑞 惠晓威 姜仑 《通信技术》 2009年第5期265-268,共4页
对现代移动通信系统中采用的智能天线技术进行了研究。介绍了智能天线技术的概念及发展历史;阐述了智能天线的工作原理,基本结构;列举了智能天线技术采用的波束优化滤波算法和用来定位及波束形成的DOA算法,并重点说明了现今智能天线技... 对现代移动通信系统中采用的智能天线技术进行了研究。介绍了智能天线技术的概念及发展历史;阐述了智能天线的工作原理,基本结构;列举了智能天线技术采用的波束优化滤波算法和用来定位及波束形成的DOA算法,并重点说明了现今智能天线技术采用较多的几种自适应算法;同时,还叙述了智能天线在TD-SCDMA中的应用,以及未来的发展前景。 展开更多
关键词 智能天线 波束优化滤波算法 DOA算法 自适应算法 TD—SCDMA
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A Dwindling Filter Line Search Algorithm for Nonlinear Equality Constrained Optimization 被引量:2
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作者 GU Chao ZHU Detong 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2015年第3期623-637,共15页
This paper proposes a dwindling filter line search algorithm for nonlinear equality constrained optimization. A dwindling filter, which is a modification of the traditional filter, is employed in the algorithm. The en... This paper proposes a dwindling filter line search algorithm for nonlinear equality constrained optimization. A dwindling filter, which is a modification of the traditional filter, is employed in the algorithm. The envelope of the dwindling filter becomes thinner and thinner as the step size approaches zero. This new algorithm has more flexibility for the acceptance of the trial step and requires less computational costs compared with traditional filter algorithm. The global and local convergence of the proposed algorithm are given under some reasonable conditions. The numerical experiments are reported to show the effectiveness of the dwindling filter algorithm. 展开更多
关键词 CONVERGENCE dwindling filter line search nonlinear optimization secant update.
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