Multipath-based probabilistic fingerprinting method for indoor positioning

LI Jiahui; ZHANG Yan; LUAN Fengyu; LI Xueru; ZHOU Lai; ZHOU Shidong

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (5) : 514-519,525.

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Multipath-based probabilistic fingerprinting method for indoor positioning

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Abstract

The space-alternating generalized expectation-maximization (SAGE) algorithm provides efficient, accurate indoor channel multipath estimation. This paper describes a multipath-based probabilistic fingerprinting method for indoor positioning that utilizes the channel multipath parameters obtained by the SAGE algorithm as fingerprinting data to achieve better positioning accuracy and robustness. Tests of measurements in a typical indoor environment show that this method is more accurate than traditional indoor positioning methods.

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channel multipath estimation / fingerprinting / indoor positioning / multipath parameters

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LI Jiahui, ZHANG Yan, LUAN Fengyu, LI Xueru, ZHOU Lai, ZHOU Shidong. Multipath-based probabilistic fingerprinting method for indoor positioning[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(5): 514-519,525

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