Using calibration stations to improve localization obtained with GEO satellites

Document Type : Original Article

Authors

Department. Department of Electrical and Computer Engineering, Imam Hossein University

Abstract

Geolocalization has received much attention in recent decades. In the discussion of positioning, the ‎problem of finding an accurate estimate of the location of the source of the unknown received signal is ‎raised. Things that have always been of interest in positioning are the accuracy of estimation and the ‎reduction of the complexity of calculations. There are many sources of uncertainty in the estimate, the ‎effects of which should be minimized. Among these sources, we can refer to the measurement errors of the ‎parameters of the arrival time difference and the signal received frequency difference, as well as the ‎uncertainty of the position and speed of the satellites. In the usual methods where the positioning process ‎is done with only two main and secondary satellites, if the time and frequency offset occurs due to the lack ‎of synchronization between the two satellites and the internal oscillators of the satellites, it does not occur. ‎This can be done and calibration stations are needed to remove additional variables. In this study, we ‎investigate the use of calibration stations in known positions to show that the positioning performance ‎improves by about ten to twenty percent compared to the case where no calibration stations are used.‎

Keywords

Main Subjects

References

##[1] R. Zekavat and R. M. Buehrer, Handbook of position location: Theory, practice and advances, vol. 27, John Wiley \& Sons, 2011.##[2] Massoglia, PETER L and Pozesky, MARTIN T and Germana, GT, The use of satellite technology for oceanic air traffic control, vol. 77,Proceedings of the IEEE, 1989##[3] K.Radnosrati, F.Gunnarsson, F.Gustafsson, New trends in radio network positioning, 2015 18th International Conference on Information Fusion, 492—498, 2015##[4] C. Liu, L. Yang and L. Mihaylova, "Dual-satellite source geolocation with time and frequency offsets and satellite location errors," in 2017 20th International Conference on Information Fusion (Fusion), IEEE, 2017, pp. 1-8.##[5] W. W. Smith and P. G. Steffes, "Time delay techniques for satellite interference location system," IEEE Transactions on Aerospace and Electronic Systems, vol. 25, pp. 224-231, 1989.##[6] R. Bardelli, D. Haworth and N. Smith, "Interference localisation for the Eutelsat satellite system," in Proceedings of GLOBECOM'95, vol. 3, IEEE, 1995, pp. 1641-1651.##[7] R. Rideout, "DERA transmitter location service (TLS)," in June 2000 IEE Military Satellite Communications Symposium, 2000.##[8] H. Yan, J. K. Cao and L. Chen, "Study on location accuracy of dual-satellite geolocation system," in IEEE 10th International Conference on Signal Processing Proceedings, IEEE, 2010, pp. 107-110.##

Files

Share

How to cite

Statistics