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计算机工程 ›› 2011, Vol. 37 ›› Issue (14): 76-78. doi: 10.3969/j.issn.1000-3428.2011.14.024

• 网络与通信 • 上一篇    下一篇

一种改进的室内无线定位算法

邹 杰,李珊君,陈晓明   

  1. (四川大学电气信息学院通信工程系,成都 610065)
  • 收稿日期:2011-01-13 出版日期:2011-07-20 发布日期:2011-07-20
  • 作者简介:邹 杰(1987-),男,硕士研究生,主研方向:信号与信息处理;李珊君,副教授;陈晓明,硕士研究生

Improved Indoor Wireless Localization Algorithm

ZOU Jie, LI Shan-jun, CHEN Xiao-ming   

  1. (Department of Communication Engineering, School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China)
  • Received:2011-01-13 Online:2011-07-20 Published:2011-07-20

摘要: 为提高室内无线定位精度并降低算法复杂度,提出一种改进的室内无线定位算法,包含2种分支算法。以视距路径数为标准,将室内无线环境划分为非视距污染较轻和较重2种环境。对污染较轻的环境,采用改进的Fang-Taylor级联算法;对污染较重的环境,采用新的迭代定位算法。仿真实验结果表明,该算法能达到甚至超过同类算法的定位精度,且适应多种室内无线环境,提高对环境的鲁棒性。

关键词: 室内无线定位, 超宽带, Fang-Taylor级联算法, Chan-Taylor级联算法, 迭代定位

Abstract: In order to improve indoor wireless localization, and reduce complexcity, this paper presents an improved indoor wireless localization algorithm. It includes two algorithms. It divides the complex indoor wireless environment into small degree of Non-light Of Sight(NLOS) pollution and serious NLOS pollution environment, which takes the number of lines of sight as standard. An improved Fang-Taylor cascaded algorithm is proposed to achieve localization in the indoor wireless environment which contains less NLOS pollution. On the other hand, it uses a new iterative localization algorithm. Simulation results indicate that this integrated indoor wireless localization algorithm can achieve the location accuracy of the similar algorithms and even better than them. Moreover, it can adapt to the ever-changing indoor wireless environment, and improves the robustness of the algorithm.

Key words: indoor wireless localization, Ultra-wide Band(UWB), Fang-Taylor cascaded algorithm, Chan-Taylor cascaded algorithm, iterative localization

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