ETRI Journal

  • 제35권6호
  • /
  • Pages.1084-1093
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  • 2013
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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P2P Ranging-Based Cooperative Localization Method for a Cluster of Mobile Nodes Containing IR-UWB PHY

  • Cho, Seong Yun (IT Convergence Technology Research Laboratory, ETRI, Department of Applied Robotics, Kyungil University) ;
  • Kim, Joo Young (IT Convergence Technology Research Laboratory, ETRI) ;
  • Enkhtur, Munkhzul (IT Convergence Technology Research Laboratory, ETRI, Department of Mobile Communication & Digital Broadcasting Engineering, University of Science & Technology)
  • 투고 : 2012.12.04
  • 심사 : 2013.06.03
  • 발행 : 2013.12.31
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초록

problem of pedestrian localization using mobile nodes containing impulse radio ultra wideband (IR-UWB) is considered. IEEE 802.15.4a-based IR-UWB can achieve accurate ranging. However, the coverage is as short as 30 m, owing to the restricted transmit power. This factor may cause a poor geometric relationship among the mobile nodes and anchor nodes in certain environments. To localize a group of pedestrians accurately, an enhanced cooperative localization method is proposed. We describe a sequential algorithm and define problems that may occur in the implementation of the algorithm. To solve these problems, a batch algorithm is proposed. The batch algorithm can be carried out after performing the sequential algorithm to linearize the nonlinear range equation. When a sequential algorithm cannot be performed due to a poor geometric relationship among nodes, a batch algorithm can be carried out directly. Herein, Monte Carlo simulations are presented to illustrate the proposed method and verify its performance.

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  3. New TDOA-Based Three-Dimensional Positioning Method for 3GPP LTE System vol.39, pp.2, 2017, https://doi.org/10.4218/etrij.17.0116.0554
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