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一种新的基于区域划分的距离-损耗模型室内WLAN定位系统 被引量:9

A New WLAN Indoor Localization System Based on Distance-loss Model with Area Partition
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摘要 该文基于室内RSS模型,结合定位空间的区域划分,构建了一个室内用户定位系统;在各个区域内,将在已知位置的信息收集点采集到的各无线接入点信号强度,与计算机模拟实际环境获得的信号强度值相比较,以此设定RSS模型参数;然后采用最大似然法估计用户位置。实际系统测定结果表明,该方法可以获得较为精确的室内用户位置估计。 Based on indoor RSS distance-loss model, an indoor localization system is set up with means of area partition. Parameters of the model are set by comparing the signal data recorded at several collection spots with the ideal signal value lists generated by the computer, which simulates the actual environment. Then users' location estimates can be achieved with Maximum Likelihood (ML) estimation algorithm. Experiments show the algorithm is effective and can obtain quite precise location result.
出处 《电子与信息学报》 EI CSCD 北大核心 2008年第6期1405-1408,共4页 Journal of Electronics & Information Technology
基金 国家自然科学基金(60172021)资助课题
关键词 室内定位系统 区域划分 距离-损耗模型 最大似然估计 Indoor localization Area partition Distance-loss model Maximum likelihood estimation
作者简介 徐凤燕:女,1982年生,硕士生,研究方向为WLAN的多用户定位算法等. 李樑宾:男,1982年生,硕士生,研究方向为多天线信号处理等. 王宗欣:男,1940年生,教授,博士生导师,主要研究方向为无线通信系统中的信号处理等.
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参考文献5

  • 1Wassi G I, Despins C, and Grenier D, et al.. Indoor location using received signal strength of IEEE 802.11b access point [C]. Canadian Conference Electrical and Computer Engineering, Saskatoon, Canada, 2005: 1371-1374.
  • 2Mandal A, Lopes C V, and Givargis T, et al.. Beep: 3D indoor positioning using audible sound. IEEE Consumer Communications and Networking Conference, Las Vegas, Nevadal USA, 2005: 348-353.
  • 3Yamasaki R, Ogino A, and Tamaki T, et al.. TDOA location system for IEEE 802.11b WLAN [C]. IEEE Wireless Communications and Networking Conference, New Orleans, LA, USA, 2005: 2338-2343.
  • 4Rappaport T S. Wireless Communications Principles and Practices Second Edition [M]. Beijing, Publishing House of Electronics Industry, 2004, 93. Original publisher, Prentice Hall Inc., a Simon Schuster.
  • 5Masato Aso, Takahiko Saiksawa, and Takeshi Hattori. Maximum likelihood location estimation using signal strength and the mobile station velocity in cellular systems [C]. Vehicular Technology Conference, Orlando, Florida, USA, 2003: 742-746.

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