Gyroscopy and Navigation

, Volume 6, Issue 3, pp 166–171 | Cite as

Improving the accuracy of GPS compass for small-sized objects

  • G. I. Emel’yantsev
  • A. P. Stepanov
  • B. A. Blazhnov
  • I. V. Semenov
Article

Abstract

The paper considers determination of attitude parameters, including true heading, by an integrated orientation and navigation system (IONS) comprising MEMS-based inertial measurement unit (IMU) and multiantenna GNSS receiving equipment. IONS generates orientation solution using phase data from two-antenna GNSS module with antenna base about the wavelength of the satellite signal at carrier frequency. The system algorithms and errors are studied. IMU and GNSS antenna base are subjected to modulating rotation. Effectiveness of using GNSS phase determinations for estimating heading errors with a short rotating antenna base is investigated. The system experimental sample uses IMU based on STIM300 Sensonor MEMS sensors (Norway), navigation and phase measurements by GNSS receivers 1K-181 by Russian Institute of Radionavigation and Time (Russia). The results obtained in bench tests are presented.

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • G. I. Emel’yantsev
    • 1
    • 2
  • A. P. Stepanov
    • 1
    • 2
  • B. A. Blazhnov
    • 1
  • I. V. Semenov
    • 1
  1. 1.Concern CSRI Elektropribor, JSCSt. PetersburgRussia
  2. 2.ITMO UniversitySt. PetersburgRussia

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