Hyperbolic positioning with antenna arrays and multi-channel pseudolite for indoor localization

Kenjirou Fujii, Yoshihiro Sakamoto*, Wei Wang, Hiroaki Arie, Alexander Schmitz, Shigeki Sugano

*この研究の対応する著者

研究成果: Article査読

26 被引用数 (Scopus)

抄録

A hyperbolic positioning method with antenna arrays consisting of proximately-located antennas and a multi-channel pseudolite is proposed in order to overcome the problems of indoor positioning with conventional pseudolites (ground-based GPS transmitters). A two-dimensional positioning experiment using actual devices is conducted. The experimental result shows that the positioning accuracy varies centimeterto meter-level according to the geometric relation between the pseudolite antennas and the receiver. It also shows that the bias error of the carrier-phase difference observables is more serious than their random error. Based on the size of the bias error of carrier-phase difference that is inverse-calculated from the experimental result, three-dimensional positioning performance is evaluated by computer simulation. In addition, in the three-dimensional positioning scenario, an initial value convergence analysis of the non-linear least squares is conducted. Its result shows that initial values that can converge to a right position exist at least under the proposed antenna setup. The simulated values and evaluation methods introduced in this work can be applied to various antenna setups; therefore, by using them, positioning performance can be predicted in advance of installing an actual system.

本文言語English
ページ(範囲)25157-25175
ページ数19
ジャーナルSensors (Switzerland)
15
10
DOI
出版ステータスPublished - 2015 9月 30

ASJC Scopus subject areas

  • 分析化学
  • 生化学
  • 原子分子物理学および光学
  • 器械工学
  • 電子工学および電気工学

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