The evaluation of the error characteristics of multiple GPS terminals

  • Authors:

  • Yuki Odaka;Shinya Takano;Yusuke In;Masakazu Higuchi;Hitomi Murakami

  • Affiliations:

  • Graduate School of Science and Tecnology, Seikei University, Japan;Graduate School of Science and Tecnology, Seikei University, Japan;Graduate School of Science and Tecnology, Seikei University, Japan;Depertment of Computer and Information Science, The Faculty of Science and Tecnology, Seikei University, Japan;Depertment of Computer and Information Science, The Faculty of Science and Tecnology, Seikei University, Japan

  • Venue:
  • CSCS '11 Proceedings of the 2nd international conference on Circuits, systems, control, signals
  • Year:
  • 2011

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Abstract

In recent years, LBS (Location Based Services) attracts attention due to the spread of mobile phone GPS, and it is applied to various applications. Now, when mobile phones become ubiquitous terminals, many mobile phone GPS terminals may be unevenly distributed within local locations. Our study examines the error characteristics of terminals that are located within a short distance. We used GPS loggers in this experiment because we intended to investigate the change effect of satellites. In this paper, we consider that positioning errors in GPS terminals depend on the difference in the number of satellites used for positioning calculation and the satellite numbers. In addition, we perform theoretical analysis of GPS errors and study the error characteristics of GPS loggers.