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计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

终端异质下位置指纹的鲁棒性研究

谢代军,孔范增,胡捍英   

  1. (解放军信息工程大学信息系统工程学院,郑州 450002)
  • 收稿日期:2013-03-08 出版日期:2014-05-15 发布日期:2014-05-14
  • 作者简介:谢代军(1984-),男,硕士研究生,主研方向:无线与移动通信,无线定位;孔范增,博士研究生;胡捍英,教授、博士、博士生导师。

Research on Robustness of Location Fingerprint Under Terminal Heterogeneity

XIE Dai-jun, KONG Fan-zeng, HU Han-ying   

  1. (Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou 450002, China)
  • Received:2013-03-08 Online:2014-05-15 Published:2014-05-14

摘要: 针对终端硬件差异对接收信号强度(RSS)测量的影响,导致传统RSS指纹鲁棒性较差的问题,借鉴信号强度差(SSD)在室内定位中的应用,提出一种抗移动终端硬件异质的SSD位置指纹。从理论上对SSD、RSS及双曲位置指纹(HLF)3种指纹的鲁棒性进行分析,并在实际无线局域网环境中应用传统K最近邻法,对3种指纹在训练定位阶段使用相同终端与不同终端2种情况下进行实验。结果证明,与RSS和HLF指纹相比,SSD指纹在抗移动终端异质方面的鲁棒性更好。

关键词: 无线局域网, 室内定位, 位置指纹, 信号强度差, 终端异质, 鲁棒性

Abstract: Received Signal Strength(RSS) is different when measured by different terminal hardware, which causes poor robustness for the traditional fingerprint RSS. Using the application of Signal Strength Difference(SSD) for indoor reference, a robust SSD location fingerprint is proposed to resolve the problem in this paper. It analyzes the robustness of SSD, RSS and Hyperbolic Location Fingerprint(HLF) theoretically, and with the traditional localization K-Nearest Neighbor(KNN) in an actual Wireless Local Area Network(WLAN) environment, it carries out experiments on the 3 fingerprints, with a same terminal and different terminals, in the training phase and positioning phase. Experimental results show that, compared with RSS and HLF, SSD’s robustness is better on against mobile terminal heterogeneity.

Key words: Wireless Local Area Network(WLAN), indoor positionin, location fingerprint, Signal Strength Difference(SSD), terminal heterogeneity, robustness

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