Impacts of Intense Geomagnetic Storms on NavIC / IRNSS System
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TLDR
In this paper, the authors examined the total electron content (TEC) of navigation with the Indian Constellation (NavIC)/ Indian Regional Navigation Satellite System (IRNSS) under the influence of an intense geomagnetic storm occurred on 8 September, 2017, in the low latitudes of the Indian re- gion.Citations
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An Observational Review on influence of Intense Geomagnetic Storm on Positional Accuracy of NavIC/IRNSS System
Mehul V. Desai,Shweta Shah +1 more
TL;DR: The positional accuracy of navigation with the Indian Constellation (NavIC)/Indian Regional Navigation Satellite System (IRNSS) in the low latitudes of the Indian region during the intense geomagnetism was investigated in this paper.
Journal ArticleDOI
Performance of NavIC for studying the ionosphere at an EIA region in India
TL;DR: In this article, NavIC's performance in ionospheric studies over the Indian subcontinent region was analyzed using data of one year (2017-2018) at IIT Indore, a location near the northern crest of Equatorial Ionization Anomaly (EIA).
Journal ArticleDOI
Estimation of ionospheric delay of NavIC/IRNSS signals using the Taylor Series Expansion
Mehul V. Desai,Shweta Shah +1 more
TL;DR: In this article, a Taylor Series Expansion (TSE) algorithm for a single-frequency NavIC/IRNSS system is proposed to estimate the ionospheric time delay (ionodelay) precisely using the local Taylor series expansion (TSE) algorithm, and the performance of the local TSE algorithm is examined by considering two cases.
Journal ArticleDOI
Validation of the IRI-2016 model with Indian NavIC data for future navigation applications
Journal ArticleDOI
Case Study: Performance Observation of NavIC Ionodelay and Positioning Accuracy
Mehul V. Desai,Shweta Shah +1 more
TL;DR: After correcting the ionosphere, troposphere, clock, and other deviations, the average ∼70% NavIC positioning accuracy is improved for the overall observed duration, conditions, and locations.
References
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Journal ArticleDOI
What is a geomagnetic storm
Walter D. Gonzalez,J. A. Joselyn,Yohsuke Kamide,H. W. Kroehl,Gordon Rostoker,Bruce T. Tsurutani,Vytenis M. Vasyliunas +6 more
TL;DR: In this article, an attempt is made to define a geomagnetic storm as an interval of time when a sufficiently intense and long-lasting interplanetary convection electric field leads, through a substantial energization in the magnetosphere-ionosphere system, to an intensified ring current sufficiently strong to exceed some key threshold of the quantifying storm time Dst index.
Journal ArticleDOI
Latitudinal characteristics of GPS derived ionospheric TEC : a comparative study with IRI 2012 model
TL;DR: In this article, the variation of total electron content (TEC) using Global Positioning System (GPS) satellites from four equatorial to mid-latitudes stations over a period of one year was investigated.
Journal ArticleDOI
Effects of geomagnetic storm on low latitude ionospheric total electron content: A case study from Indian sector
TL;DR: In this paper, the effect of geomagnetic storms on low latitude ionosphere has been investigated with the help of Global Positioning System Total Electron Content (GPS-TEC) data.
Journal ArticleDOI
The GIVE Ionospheric Delay Correction Approach to Improve Positional Accuracy of NavIC/IRNSS Single-Frequency Receiver
Mehul V. Desai,Shweta Shah +1 more
TL;DR: The result shows that both the single-frequency Grid Ionosphere Vertical Error (GIVE) model and dual frequency model outperform remarkably compared to the traditional coefficient-based model.
Journal ArticleDOI
Comparison of GPS-TEC measurements with IRI2012-TEC predictions in the Brazilian sector during the unusual solar minimum 2009
Alessandro De Abreu,Inácio M. Martin,Rodolfo de Jesus,Maurício José Alves Bolzan,K. Venkatesh,Paulo Roberto Fagundes,Mauro A. Alves,Mauricio Gende,Sanjay Kumar +8 more
TL;DR: In this paper, a comparative study between GPS-TEC and the IRI-2012 model is analyzed during the deep low solar activity period of 2009 in the unusual solar cycle 23.6oW, under the southern crest of the equatorial ionization anomaly (EIA), in the Brazilian sector.
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The GIVE Ionospheric Delay Correction Approach to Improve Positional Accuracy of NavIC/IRNSS Single-Frequency Receiver
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