Development of a Novel Indoor Positioning System With mm-Range Precision Based on RF Sensors Network

Xiong, Renhai; van Waasen, Stefan; Rheinlander, Carl; Wehn, Norbert

doi:10.1109/LSENS.2017.2749000

Journal Article

FZJ-2017-08301

Development of a Novel Indoor Positioning System With mm-Range Precision Based on RF Sensors Network

Xiong, R.FZJ* ; van Waasen, S. (Corresponding author)FZJ* ; Rheinlander, C. ; Wehn, N.

2017
IEEE New York, NY

IEEE sensors letters 1(5), 1 - 4 (2017) [10.1109/LSENS.2017.2749000]

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Please use a persistent id in citations: doi:10.1109/LSENS.2017.2749000

Abstract: Indoor localization has become increasingly important for sports analysis, automation as well as for mass market products like entertainment systems. For such applications, an increasing accuracy of a few centimeters or even millimeters is desired. But it is a huge challenge to develop a positioning system of that high accuracy in an indoor environment with severe multipath characteristics. A high precision real-time indoor positioning system (IPS) was designed, implemented and tested which is capable to achieve a position accuracy in sub-centimeter range. The proposed system implements the positioning based on time difference of arrival (TDoA) technology with the usage of on-off keying (OOK) modulated ultra-high frequency signals (UHF) in order to deal with multipath interference and achieve the high positioning precision. This paper describes the design and evaluation of the demonstrator system. The first measurements are performed within a fully furnished laboratory environment and already proof a positioning precision of a radio frequency (RF) source with a root-mean-square error (RMSE) of 8 millimeters. Moreover, the low latency of less than 2 milliseconds and the high update rate of 100 Hz make the system suitable for real-time applications.

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