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Research Journal of Engineering and Technology
Year : 2018, Volume : 9, Issue : 1
First page : ( 55) Last page : ( 58)
Print ISSN : 0976-2973. Online ISSN : 2321-581X.
Article DOI : 10.5958/2321-581X.2018.00008.9

Ionospheric Effects on the Performance of Satellite-Based Navigation in India

Reddy AS*

Chaitanya Bharathi Institute of Technology (CBIT), Gandipet, Hyderabad-500075

*Corresponding Author Email: reddyasr23@gmail.com

Online published on 24 May, 2018.


The dynamic ionospheric effects prevalent over Indian region, including the large range delays, high spatial gradients, equatorial bubbles and scintillations not only exhibit day-to-day variability but also exhibit seasonal and longitudinal variations. Non-Precision Approach (NPA) services provided by GPS is very robust to such variations whereas the performance of Precision Approach (PA) services is severely affected by large and sudden variations in ionospheric delays. Understanding, quantifying and predicting the behavior of ionosphere over Indian region would in turn aid in designing robust satellite-based navigation systems which can account for these ionospheric effects. This paper reports interesting results on characterizing ionospheric behaviour over Indian region using data from Total Electron Content (TEC) monitoring stations in India.



GPS, Ionospheric effects, VTEC, EIA, DGPS.


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