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CDMA-based wireless location detection system.

机译:基于CDMA的无线位置检测系统。

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摘要

The existing Time Difference of Arrival (TDoA) wireless location detection methods use a Taylor's series based iterative method for solving the hyperbolic equation. This iterative method is computationally intensive and is not suitable for practical applications. Furthermore, if the initial guess is not very close to the actual solution then the calculation may not converge. Although several algorithms have been developed for location detection systems, an effective solution for the Code Division Multiple Access (CDMA) based wireless communication system is yet to be found. In this thesis, we propose a position location estimation technique for CDMA wireless communications system. The proposed technique utilizes the Chan-Ho method for solving the hyperbolic equation, which provides faster solution to the hyperbolic equation and does not suffer from the convergence problem. The performance of the proposed position location technique has been tested via simulation considering different system parameters, such as channel noise, path loss, fading and variable position of the user. The simulation results show that the proposed position location technique can successfully determine the position of a wireless user under various challenging scenarios.
机译:现有的到达时差(TDoA)无线位置检测方法使用基于泰勒级数的迭代方法来求解双曲方程。此迭代方法计算量大,不适合实际应用。此外,如果初始猜测与实际解还不太接近,则计算可能不会收敛。尽管已经为位置检测系统开发了几种算法,但是仍未找到基于码分多址(CDMA)的无线通信系统的有效解决方案。本文提出了一种用于CDMA无线通信系统的位置估计技术。所提出的技术利用Chan-Ho方法来求解双曲方程,这为双曲方程提供了更快的解决方案,并且没有收敛问题。所提出的位置定位技术的性能已通过仿真考虑了不同的系统参数,例如信道噪声,路径损耗,衰落和用户的可变位置,进行了测试。仿真结果表明,所提出的位置定位技术可以在各种挑战性场景下成功确定无线用户的位置。

著录项

  • 作者

    Haq, Naiemul.;

  • 作者单位

    University of South Alabama.;

  • 授予单位 University of South Alabama.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.S.
  • 年度 2006
  • 页码 62 p.
  • 总页数 62
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

  • 入库时间 2022-08-17 11:40:09

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