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arXiv 1503.07628cs.NI
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智能手机室内定位算法

Indoor Localization Algorithm For Smartphones

Kaiqing Zhang, Hong Hu, Wenhan Dai, Yuan Shen, Moe Z. Win

摘要:

越来越多的传感器测量和先验知识的来源已经变得可用于智能手机上的室内定位。如何有效地利用这些资源来提高定位精度是一个重要而具有挑战性的问题。在本文中,我们提出了一个区域状态辅助定位算法,利用各种来源的信息。具体来说,我们引入区域状态的概念来指示用户在室内地图上的区域。然后,借助于区域状态,使用惯性测量单元(IMU)测量来估计用户的位置。进而基于位置估计更新区域状态。为了避免IMU测量的累积误差,我们的算法使用WiFi接收信号强度指示器(RSSI)来指示用户到路由器的附近。实验结果表明,在典型的室内环境中,该系统能够达到满意的定位精度。

英文摘要:

Increasing sources of sensor measurements and prior knowledge have become available for indoor localization on smartphones. How to effectively utilize these sources for enhancing localization accuracy is an important yet challenging problem. In this paper, we present an area state-aided localization algorithm that exploits various sources of information. Specifically, we introduce the concept of area state to indicate the area where the user is on an indoor map. The position of the user is then estimated using inertial measurement unit (IMU) measurements with the aid of area states. The area states are in turn updated based on the position estimates. To avoid accumulated errors of IMU measurements, our algorithm uses WiFi received signal strength indicator (RSSI) to indicate the vicinity of the user to the routers. The experiment results show that our system can achieve satisfactory localization accuracy in a typical indoor environment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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