Estimated effect of ionospheric longitudinal horizontal electron density gradients on ionospheric delay of gnss signals

V. D. Bazhenov; S. N. Kolesnik; V. I. Sazhin

doi:10.1117/12.2602970

15 December 2021 Estimated effect of ionospheric longitudinal horizontal electron density gradients on ionospheric delay of gnss signals

V. D. Bazhenov, S. N. Kolesnik, V. I. Sazhin

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119167I (2021) https://doi.org/10.1117/12.2602970
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

Through numerical simulation, we have assessed the effect of longitudinal horizontal electron density gradients along the transionospheric propagation path on ionospheric delay of GNSS signals. We have found that in some cases their consideration may result in a significant refinement of the value of ionospheric delay of GNSS signals, which can be as large as several tens of percent compared to that in the absence of these gradients. We have shown that the method of determining slant TEC through direct signal-path integration in the ionospheric model with due regard for such gradients may somewhat improve the accuracy of positioning performed in single-frequency GNSS measurements.

Citation Download Citation

V. D. Bazhenov, S. N. Kolesnik, and V. I. Sazhin "Estimated effect of ionospheric longitudinal horizontal electron density gradients on ionospheric delay of gnss signals", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119167I (15 December 2021); https://doi.org/10.1117/12.2602970

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