Equatorial Amplitude Scintillation Spectrum Analysis and Fading Characteristics on GPS Signals

Yu Jiao, Dongyang Xu, Yu Morton, Charles Rino

Peer Reviewed

Abstract:	Deep signal fading during ionospheric scintillation poses a threat to GNSS signal tracking and degrades position, navigation, and timing solution accuracy, especially in the low-latitude regions. Understanding the physics of scintillation and the characteristics of the signal fading is a pre-requisite to develop robust scintillation mitigation techniques for assured navigation and for utilizing GNSS signals for ionosphere and space weather studies. In this paper, intermediate frequency GPS data collected on Ascension Island in March 2013 are processed to enable an assessment of phase screen theory predictions through spectral and spatial coherence analysis of the measured quiet and strong scintillation signals. In addition, probability distributions of detrended signal intensity measurements are also investigated to provide a comparison of the real data with past statistical models.
Published in:	Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016) September 12 - 16, 2016 Oregon Convention Center Portland, Oregon
Pages:	1680 - 1687
Cite this article:	Jiao, Yu, Xu, Dongyang, Morton, Yu, Rino, Charles, "Equatorial Amplitude Scintillation Spectrum Analysis and Fading Characteristics on GPS Signals," Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016), Portland, Oregon, September 2016, pp. 1680-1687. https://doi.org/10.33012/2016.14771
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