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一种基于CDMA系统的DOA估计算法

An Algorithm for Estimating Direction-of-Arrival of Signals Used in CDMA Systems
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摘要 提出一种应用在码分多址(CDMA)智能天线系统中移动用户信号到达方向(DOA)的估计算法,该算法利用用户扩频码和基带信号的恒模特征,使得同时估计出的DOA个数不受天线阵元数的限制,运算量也很小。理论分析和计算机仿真都证明该算法是可行的,适合在信噪比较低的实时场合中使用。 A new algorithm is proposed for estimating direction-of-arrival　(DOA) of mobile users' signals, which is based on smart antennas in CDMA systems. The information of user's spread codes and the constant modules property of base band signals are used in the algorithm. The number of estimating DOA is not limited by the number of antenna elements. Both theoretic analysis and computer simulation prove that the algorithm is feasible and suitable for being used in lower Signal-to-Noise Ratio(SNR) and real-time situation.
作者 覃团发 黎英云 陈琳 胡永乐
机构地区 广西大学计算机与电子信息学院
出处 《电讯技术》 北大核心 2004年第5期22-25,共4页 Telecommunication Engineering
基金 广西高校百名中青年学科带头人资助计划项目(桂教人[2002]467号) 广西"新世纪十百千人才工程"专项资金资助项目(批准号:2002222号)
关键词 DOA估计算法 CDMA系统 扩频码 到达方向 基带信号 码分多址(CDMA) 阵元 实时 计算机仿真 运算量 CDMA system Smart antenna Estimation of DOA Algorithm
分类号 TN929.533 [电子电信—通信与信息系统] TN911 [电子电信—通信与信息系统]
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参考文献5

  • 1Ohira T. Adaptive array antenna beam-forming architectures as viewed by a microwave circuit designer[A]. Asia-Pacific Microwave Conference[C].2000.
  • 2Rong Z, Rappaport T S. Simulation of multitarget adaptive algorithms for wireless CDMA system[J].Proc. IEEE VTC-96,1996.
  • 3Jion S S, et al. A novel smart antenna system implementation for broad-band wireless communications[J]. IEEE Trans , 2002 , ap-50(5) : 600-606.
  • 4Rappaport T S. Smart antennas for wireless communications IS95 and third generation applications[M]. NJ:Prentice Hall,1999.
  • 5孙胜贤,李会勇,龚耀寰.唯相相控阵自适应赋形收发波束形成[J].信号处理,2003,19(1):24-27. 被引量：4

二级参考文献18

  • 1Charles A. Baird and George G. Rassweiler, "Adaptive sidelobe nulling using digitally controlled phase- shifters,"IEEE Trans. on Antennas and Propag., VoI.AP- 24, No.5,pp.638-649, Sep. 1976.
  • 2H. Steyskal, R. A. Shore and R. L. Haupt, "Methods for null control and their effects on the radiation pattern,"IEEE Transactions on Antennas and Propagation, Vol.AP-34. No. 3, pp.404-409, Mar. 1986.
  • 3G. M. Kautz, "Phase-only shaped beam synthesis via technique of approximated beam addition," IEEE Transactions on Signal Processing, Vol.47, No.5,pp.887-894, May 1999.
  • 4Steven W. Ellingson, and Grant A. Hampson, "A Subspace-Tracking Approach to. Interference Nulling for Phased Array-Based Radio Telescopes," IEEE Transactions on Antennas and Propagation, Vol.50, No.l, pp.25-30, Jan. 2002.
  • 5M. H. Er, and B. C. Ng, "A new approach to robust beamforming in the presence of steering vector errors," IEEE Trans. on Signal and Processing, Vol.42, No.7, pp.1826-1829, July 1994.
  • 6M. Wax, and Y. Anu, "Performance analysis of the minimum variance beamforming in the presence of steering vector errors," IEEE Transactions on Signal and Processing, Vol.44, No.4, pp.938-947, Apr. 1996.
  • 7C. Y. Tseng, "Minimum variance beamforming with phase-independent derivative constraints," IEEE Transactions on Antennas and Propagation, Vol.40, No.3,pp.285-294, Mar. 1992.
  • 8S. E Applebaum, and D. J. Chapman, "Adaptive arrays with main beam constraints", IEEE Trans. Antennas and Propagation, Vol.AP-24, No.5, pp.650-662, 1976.
  • 9A. Trastoy, E Ares, and E. Moreno, "Phase-only control of antenna sum and shaped patterns through null perturbation," IEEE Antennas and Propagation Magazine,Vol. 43, No.6, pp.45-54, Dec. 2001.
  • 10Hans Steyskal, "Simple method for pattern nulling by phase perturbation," IEEE Transactions on Antennas and Propagation. Vol.AP-31, No. 1, pp 163-166, Jan. 1983.

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电讯技术
2004年 第5期

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