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Localization Algorithms in a Wireless Sensor Network Using Distance and Angular Data.

机译:无线传感器网络中使用距离和角度数据的定位算法。

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摘要

The applications of positioning in wireless sensor networks include patient monitoring, asset tracking, and intelligent transportation including air traffic control. Popular methods are: received-signal-strength (RSS); time-of-arrival (TOA); timedifference- of-arrival (TDOA); and angle-of-arrival (AOA). Estimation is based on nonlinear equations constructed from measurements and knowledge of the anchor node geometry. In this thesis, anchor-based line-of-sight TOA and AOA are reviewed, and new techniques, namely DAOA (differential-angle-of-arrival) and hybrid TOA/DAOA are proposed for rotating laser implementation. For the TOA approach, a nonlinear Least Square Estimator (LSE) is applied to one- and two-dimensional systems, then the equations are linearized and solved by unconstrained/constrained LSE. This LSE procedure is also used for AOA. For DAOA, all the anchors are placed on a circle in order to simplify the solution, and then LSE is used to estimate an unlocalized node. The statistical accuracy of these methods, from simulation, is presented graphically for simple read-and-use application.
机译:无线传感器网络中的定位应用包括患者监视,资产跟踪以及包括空中交通管制在内的智能交通。流行的方法是:接收信号强度(RSS);到达时间(TOA);到达时间差(TDOA);和到达角(AOA)。估计基于非线性方程,该非线性方程由锚节点几何的测量和知识构成。本文对基于锚点的视距TOA和AOA进行了综述,并提出了新技术DAOA(差分到达角)和混合TOA / DAOA用于旋转激光器的实现。对于TOA方法,将非线性最小二乘估计器(LSE)应用于一维和二维系统,然后将方程线性化并通过无约束/约束LSE进行求解。该LSE程序也用于AOA。对于DAOA,将所有锚点放置在一个圆上以简化求解,然后使用LSE估计未定位的节点。通过仿真以图形方式显示了这些方法的统计准确性,以供简单的读取和使用应用程序使用。

著录项

  • 作者

    Najibi, Mahsa.;

  • 作者单位

    Simon Fraser University (Canada).;

  • 授予单位 Simon Fraser University (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.A.Sc.
  • 年度 2013
  • 页码 96 p.
  • 总页数 96
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 能源与动力工程;
  • 关键词

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