Ionospheric Scintillation Effects across Multiple Carrier Frequency Bands Transmitted from LEO Satellites

Andrew K. Sun, Y. Jade Morton, Jiyun Lee

Peer Reviewed

Abstract: Prior simulation studies have indicated that signals from LEO satellites exhibit higher signal dynamics and more significant scintillation effects compared to those transmitted from MEO satellites. This study employs a physics-based simulation model initiated with real GPS scintillation data. It extends the analysis to assess scintillation effects transmitted from LEO satellites across various carrier frequencies in the L band (L1, L2, and L5) and other bands (VHF, UHF, and S). The results provide quantitative evidence that signals at lower frequencies experience more frequent fades and higher phase dynamics. Analyses across various frequency bands validate that distinct signal dynamics determine the time scale of scintillation, resulting in temporal characteristics of frequency-dependent signal fading. The simulation also demonstrates a consistent rate of selective fading among different L-band signals across different signal dynamics. This frequency-selective fading allows the adaptation of inter-frequency aiding techniques in receivers to improve the robustness of LEO signal processing.
Published in: Proceedings of the 2024 International Technical Meeting of The Institute of Navigation
January 23 - 25, 2024
Hyatt Regency Long Beach
Long Beach, California
Pages: 109 - 125
Cite this article: Sun, Andrew K., Morton, Y. Jade, Lee, Jiyun, "Ionospheric Scintillation Effects across Multiple Carrier Frequency Bands Transmitted from LEO Satellites," Proceedings of the 2024 International Technical Meeting of The Institute of Navigation, Long Beach, California, January 2024, pp. 109-125. https://doi.org/10.33012/2024.19525
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