Assessment of actual signal/noise ratio values in radionavigation systems based on experimental data
- Authors: Shalaev A.A.1
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Affiliations:
- Moscow State Technical University of Civil Aviation (Irkutsk Branch)
- Issue: No 4 (2025)
- Pages: 61-76
- Section: Aviation radio communication systems, radar, radio navigation and methods of their operation
- URL: https://journal-vniispk.ru/2312-1327/article/view/360064
- DOI: https://doi.org/10.51955/2312-1327_2025_4_60
- ID: 360064
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Full Text
Abstract
One of the most important ways to improve aviation radio navigation systems is to increase the accuracy of aircraft position-fixing. Among the factors affecting the accuracy of radio navigation systems is the signal-to-noise ratio, the magnitude and dynamics of which are the subject of this work. The assessment of the signal-to-noise ratio will theoretically improve the accuracy of aircraft position-fixing by applying adaptive filtering algorithms. The article presents the results of theoretical studies of the signal-to-noise ratio and the factors influencing its absolute value. An experimental installation for monitoring signals from air navigation support facilities is presented. To assess the changes in the signal-to-noise ratio, the results of recording and studying the signal of the Doppler VHF omnidirectional radio range (DVOR) at Irkutsk International Airport and the daily log of the signal-to-noise ratio for various GNSS satellites are presented.
About the authors
A. A. Shalaev
Moscow State Technical University of Civil Aviation (Irkutsk Branch)
Author for correspondence.
Email: alexsnow9999@gmail.com
ORCID iD: 0000-0002-8490-5143
Irkutsk, 664047, Russia
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