Indoor Positioning Technology Based on Location Fingerprint and Pedestrian Track
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    Abstract:

    On this paper, the research mainly focuses on the technology of indoor location. First, we collect coordinates of sample spots by handheld smart device in the specified range and information of wifi wireless hotspot, with which the location fingerprint technique is applied to absolute positioning; In order to improve the real-time performance and accuracy of indoor positioning, the pedestrian dead reckoning algorithm which will measure stride frequency, estimate step size and detect the direction with data collected and processed by the mobile phone sensor is used to achieve relative position estimation. The pedestrian dead reckoning algorithm can overcome the instability of the location fingerprint technique and the latter can reduce the cumulative error that the former brings. The result shows the combination of the two technologies is able to effectively improve the accuracy of indoor location and be fully used in the real world.

    Reference
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罗思奇,罗笑玲,李敏澄,李志锋,陈建城,周娴玮,潘家辉.结合位置指纹和行人航迹的室内定位技术.计算机系统应用,2017,26(5):272-278

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  • Received:September 04,2016
  • Revised:November 03,2016
  • Online: May 13,2017
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