Skip to main content

Advertisement

Efficient GPS receiver DCB estimation for ionosphere modeling using satellite-receiver geometry changes

Article metrics

Abstract

A new and efficient algorithm using the geometry conditions between satellite and tracking receivers is proposed to determine the receiver differential code bias (DCB) using permanent reference stations. This method does not require a traditional single-layer ionosphere model and can be used for estimating DCBs of receivers in a regional network as long as one of the receiver DCBs is already known. The main underlying rationale for this algorithm is that the magnitude of the signal delay caused by the ionosphere is, under normal conditions, highly dependent on the geometric range between the satellite and the receiver. The proposed algorithm was tested with the Ohio Continuously Operating Reference Stations (CORS) sub-network data. The results show that quality comparable to the traditional DCB estimation method is obtainable by implementing this simple algorithm.

References

  1. Hugentobler, U., S. Schaer, and P. Fridez, BERNESE GPS Software Version 4.2, 537 pp., Astronomical Institute, University of Berne, 2001.

  2. Komjathy, A., Global ionospheric total electron content mapping using the global positioning system, Technical report No. 188, Department of Geodesy and Geomatics Engineering, University of New Brunswick, 1997.

  3. Otsuka, Y., T. Ogawa, A. Saito, T. Tsugawa, S. Fukao, and S. Miyazaki, A new technique for mapping of total electron content using GPS network in Japan, Earth Planets Space, 54, 63–70, 2002.

  4. Sardon, E. and N. Zarraoa, Estimation of total electron content using GPS data: How stable are the differential satellite and receiver instrumental biases?, Radio Sci., 32(5), 1899–1910, 1997.

  5. Sardon, E., A. Ruis, and N. Zarraoa, Estimation of the transmitter and receiver differential biases and the ionospheric total electron content from Global Positioning System observations, Radio Sci., 29(3), 577–586, 1994.

  6. Schaer, S., Mapping and Predicting the Earth’s Ionosphere Using the Global Positioning System, Ph.D. Thesis, Astronomical Institute, University of Berne, Switzerland, 1999.

  7. Wielgosz, P., D. Grejner-Brzezinska, I. Kashani, and Y. Yi, Instantaneous Regional Ionosphere Modeling, Proceedings of ION GPS/GNSS 2003, 1750–1757, 2003.

  8. Wilson, B. and A. Mannucci, Extracting ionospheric measurements from GPS in the presence of Anti-Spoofing, Proceedings of ION GPS-94, 1599–1608, 1994.

Download references

Author information

Correspondence to Chang-Ki Hong.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Hong, C., Grejner-Brzezinska, D.A. & Kwon, J.H. Efficient GPS receiver DCB estimation for ionosphere modeling using satellite-receiver geometry changes. Earth Planet Sp 60, e25–e28 (2008) doi:10.1186/BF03353138

Download citation

Key words

  • GPS
  • receiver DCB
  • ionosphere modeling
  • CORS