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IJSTR >> Volume 9 - Issue 1, January 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Estimation Of Gps Receiver Dcb’s By Using Gagan Observations

[Full Text]

 

AUTHOR(S)

K.Siva krishna, P. Sai Keerthi, T. D. L. N. Prathyusha, M. Bhanu Prakash Reddy, D.V.Ratnam

 

KEYWORDS

GAGAN, GPS, TEC, SBAS, Ionospheric Delay, Pseudo Range, DCB’s.

 

ABSTRACT

Many errors impair the precise positioning of the GPS, the ionospheric lag being the most prevalent error. The line-of-sight TEC derived from GPS dual frequency information is skewed by GPS satellite and receiver DCB’s. There are DCB’s as the two frequencies of the GPS experience various delays in the GPS satellite and receiver hardware. The recipient instrumental bias estimate plays an important role in achieving the precise navigation required for civil aircraft users. In this paper, we have estimated the ionospheric delay without removing the DCB’s and then separated the DCB’s from the resultant output to obtain required ionospheric delay in a station.

 

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