Time-of-arrival based localization under NLOS conditions

@article{Chan2006TimeofarrivalBL,
  title={Time-of-arrival based localization under NLOS conditions},
  author={Yiu-Tong Chan and Wing-Yue Tsui and Hing-Cheung So and Pak-Chung Ching},
  journal={IEEE Transactions on Vehicular Technology},
  year={2006},
  volume={55},
  pages={17-24}
}
Three or more base stations (BS) making time-of-arrival measurements of a signal from a mobile station (MS) can locate the MS. However, when some of the measurements are from non-line-of-sight (NLOS) paths, the location errors can be very large. This paper proposes a residual test (RT) that can simultaneously determine the number of line-of-sight (LOS) BS and identify them. Then, localization can proceed with only those LOS BS. The RT works on the principle that when all measurements are LOS… CONTINUE READING

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Key Quantitative Results

  • The RT method of LOS dimension determination is rather reliable, achieving accuracy of over 90% even when σ = 18.05 m.

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