Advanced SearchSearch Tips
Detection algorithm of ionospheric delay anomaly based on multi-reference stations for ionospheric scintillation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Detection algorithm of ionospheric delay anomaly based on multi-reference stations for ionospheric scintillation
Yoo, Yun-Ja; Cho, Deuk-Jae; Park, Sang-Hyun; Shin, Mi-Young;
  PDF(new window)
Radio waves including GPS signals, various TV communications, and radio broadcasting can be disturbed by a strong solar storm, which may occur due to solar flares and produce an ionospheric delay anomaly in the ionosphere according to the change of total electron content. Electron density irregularities can cause deep signal fading, frequently known as ionospheric scintillation, which can result in the positioning error using GPS signal. This paper proposes a detection algorithm for the ionosphere delay anomaly during a solar storm by using multi-reference stations. Different TEC grid which has irregular electron density was applied above one reference station. Then the ionospheric delay in zenith direction applied different TEC will show comparatively large ionospheric zenith delay due to the electron irregularity. The ionospheric slant delay applied an elevation angle at reference station was analyzed to detect the ionospheric delay anomaly that can result in positioning error. A simulation test was implemented and a proposed detection algorithm using data logged by four reference stations was applied to detect the ionospheric delay anomaly compared to a criterion.
GPS anomaly;solar storm;ionospheric delay anomaly;integrity monitoring;
 Cited by
A Development of GPS SIS Anomalies Generation Software,Han, Younghoon;Ko, Jaeyoung;Shin, Mi Young;Cho, Deuk Jae;

Journal of Positioning, Navigation, and Timing, 2013. vol.2. 1, pp.33-40 crossref(new window)
A Development of GPS SIS Anomalies Generation Software, Journal of the Korean GNSS Society, 2013, 2, 1, 33  crossref(new windwow)
Dehel, T.F. (2005): Observations of Ionospheric Walls of TEC During Geomagnetic Storms, Proceedings, ION (Institute Of Navigation) 61st annual meetings, 27-29 June

IMO (International Maritime Organization) (2002): Revised maritime policy and requirements for a future global navigation satellite system (GNSS), Resolution A.915(22)

Kaplan, E.D., Hegarty, C.J. (2006): Understanding GPS -Principles and Applications-

Luo, M., Pullen, S., Akos, D., Xie, G., Datta-Barua, S., Walter, T., Enge, Per. (2002): Assessment of Ionospheric impact on LAAS using WAAS supertruth data, Proceedings, ION (Institute Of Navigation) 58th annual meetings, 24-26 June, Albuquerque

Misra, P. and Enge, P. (2006): Global Positioning System -Signal, Measurement, and Performance-

NOAA (National Oceanic and Atmospheric Administration) (2011):, Space Weather Prediction Center website of the US National Oceanic and Atmospheric Administration

Pullen, S., Luo, M., Xie, G., Lee, J., Phelts, R.E., Akos, D., Enge, P. (2002): LAAS ground facility design improvements to meet proposed requirements for category II/III operations, Proceedings, ION (Institute Of Navigation), 24-27 September, Portland

Seo, J., Walter, T., Chiou, T.Y., Enge, P. (2007): Ionospheric scintillation effects on GPS receivers during solar minimum and maximum, International Beacon Satellite Symposium, 11-15 June, Boston

Vollath, U., Landau, H., Chen, X., Doucet, K., Pagels, C. (2002): Network RTK versus single base RTK - Understanding the error characteristics, Proceedings, ION (Institute Of Navigation), 24-27 Sept., Portland

Yoo, Y., Shin, M.Y., Cho, D.J., Park, S.H. (2011): How sun spot activity affects on positioning accuracy?: Case study of solar storm, Int. J. Navigation and Port Research 35 (6), pp.477-482 crossref(new window)