Space Weather pp 129-146

Part of the Astrophysics and Space Science Library book series (ASSL, volume 344)

Space Weather Influence on Satellite-based Navigation and Precise Positioning

  • R. Warnant
  • S. Lejeune
  • M. Bavier

Abstract

Global Navigation Satellite Systems (GNSS) are widely used to measure positions with accuracies ranging from a few mm to about 20 m. The effect of the Earth ionosphere on GNSS signal propagation is one of the main error sources which limits the accuracy and the reliability of GNSS applications. In particular, disturbed Space Weather conditions can be the origin of strong variability in the ionosphere Total Electron Content (TEC) which itself degrades the accuracy of GNSS applications. Space Weather effects on GNSS depend very much on the type of application. In this paper, we discuss the effects of Space Weather conditions on differential positioning with the Differential GPS (DGPS) technique and on relative positioning with the Real Time Kinematic (RTK) technique. We show that DGPS is affected by medium to large-scale gradients in TEC mainly observed at solar maximum when RTK will be degraded by smaller-scale ionospheric variability due to scintillations, TEC noise-like behaviour and Travelling Ionospheric Disturbances

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References

  1. Bèniguel, Y., Adam, J.-P.: Effects of ionospheric scintillations on GNSS operations (this volume)Google Scholar
  2. Leick, A.: GPS Satellite surveying, 3rd Edition, John Wiley & Sons, 435 (2004)Google Scholar
  3. Seeber, G.: Satellite Geodesy, 2nd Edition, de Gruyter, 589 (2003)Google Scholar
  4. Skone, S., Shrestha, S. M.: Limitations in DGPS positioning accuracies at low latitudes during solar maximum, Geoph. Res. Letters, Vol. 29, 10, 10.1029/2001GL013854 (2002)Google Scholar
  5. Hofmann-Wellenhof, B., Lichtenegger, H., Collins, J.: GPS. Theory and practice, 5th Edition, Springer, 382 (2001)Google Scholar
  6. Wanninger, L., Effects of equatorial ionosphere on GPS, GPS World, July, pp 48–54 (1993)Google Scholar
  7. Warnant, R., Kutiev, I., Marinov, P., Bavier, M., Lejeune, S.: Ionospheric and geomagnetic conditions during periods of degraded GPS position accuracy: 1. Monitoring variability in TEC which degrades the accuracy of Real Time Kinematic GPS applications, Adv. Space Res. (in press)Google Scholar
  8. Warnant, R., Kutiev, I., Marinov, P., Bavier, M., Lejeune, S.: Ionospheric and geomagnetic conditions during periods of degraded GPS position accuracy: 2. RTK events during disturbed and quiet geomagnetic conditions, Adv. Space Res. acceptedGoogle Scholar
  9. Warnant, R., Pottiaux, E.: The increase of the ionospheric activity as measured by GPS, Earth, Planets and Space, Vol. 52, 11, pp 1055–1060 (2000)ADSGoogle Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • R. Warnant
    • 1
  • S. Lejeune
    • 1
  • M. Bavier
    • 1
  1. 1.Royal Observatory of BelgiumAvenue Circulaire3, B-1180BrusselsBelgium

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