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Orientador(es)
Resumo(s)
A fast technique to simulate the effect of equatorial ionospheric scintillation on GNSS signals was proposed by the authors in a previous work. The algorithm uses a single-layer phase-screen model of the ionosphere and the scintillation is expressed by the Huygens-Fresnel (HF) integral which can be determined analytically. Herein, we characterize statistically the amplitude and phase obtained with the HF integral for different values of the scintillation index S4. A phase unwrapper is also developed to determine the phase from the modulo two-pi version provided by the argument of the HF integral.
Descrição
Palavras-chave
Ionospheric scintillation GNSS signals Phase-screen model Scintillation index Alpha-mu distribution
Contexto Educativo
Citação
NUNES, Fernando D.; SOUSA, Fernando M. G.; MARÇAL, José M. V. – Statistical characterization of ionospheric scintillation using a phase-screen model. In 2018 9th ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC). Noordwijk, Netherlands: IEEE, 2018. ISBN 978-1-5386-7125-2. Pp. 1-8
Editora
Institute of Electrical and Electronics Engineers