北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2000, Vol. 23 ›› Issue (2): 91-94.

• 短文 • 上一篇    

CDMA系统中智能天线阵列形式的研究

马文华,王华芝,查明勇   

  1. 北京邮电大学电信工程学院,北京100876
  • 收稿日期:1999-09-20 出版日期:2000-03-10
  • 作者简介:马文华(1975-),男,河南三门峡市人,硕士生.

The Study on Geometrical Structure of Adaptive Array Implemented in CDMA System

MA Wen-hua, WANG Hua-zhi, ZHA Ming-yong   

  1. School of Telecommunication Engineering, Beijing University of Posts and communications, Beijing 100876, China
  • Received:1999-09-20 Online:2000-03-10

摘要: 建立了适用于CDMA系统的自适应天线阵列的系统模型,采用LMS算法首先对阵列结构参数进行了研究,得出了ρ值的最佳范围.研究了由心脏型方向性阵元组成的圆阵和直线阵,发现由该阵元组成的圆阵并不能起到提高阵列增益的目的,由该阵元组成的直线阵在一定的区域内具有很高的增益,可以将这种阵列天线用于扇形小区.

关键词: 自适应算法, 方向性阵元, 自适应天线, CDMA系统

Abstract: The system model of adaptive array employed in CDMA system was established. First, this paper studied the geometrical structure of array and obtained the optimum range of ρ. Second, the circular and linear array composed of directional elements was studied. The results showed that the circular array composed of directional elements has no higher gain than that composed of omnidirectional elements; the linear array composed of directional elements has higher gain than that composed of omnidirectional elements within some angle range and so can be employed in sector cell.

Key words: adaptive algorithm, directional element, adaptive array, CDMA system

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