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An Effective Phase-Based Localization Approach Under Multipath Environments

  • Yang Zhao
  • Kaihua Liu
  • Yongtao Ma
  • Liuji Zhou
  • Jinlong Wang
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 246)

Abstract

Multipath channel has always been a big challenge in accurate indoor localization based on Radio Frequency Identification (RFID) technique. To mitigate this problem, we present a simple but effective localization approach which utilizes Phase of Arrival (POA) as the measurement information and linear least squares as geometrical localization estimation algorithm. In this approach, we make an accurate phase extracting criterion and also propose a reasonable line of sight (LOS) computation method which depends on the addition of the reference tags. Experimental results show that the proposed approach can achieve a position error of about 1 m under multipath environments and is robust to the environmental dynamics.

Keywords

Phase of arrival (POA) Linear least squares Reference tags Multipath environments 

Notes

Acknowledgments

This research is supported by research forums cooperation project of ZTE Corporation.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Yang Zhao
    • 1
  • Kaihua Liu
    • 1
  • Yongtao Ma
    • 1
  • Liuji Zhou
    • 1
  • Jinlong Wang
    • 2
  1. 1.School of Electronic Information Engineering, Tianjin UniversityTianjinChina
  2. 2.ZTE CorporationTianjinChina

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