The Land Based Positional Accuracy Of Gps And Gps Augmented By Gagan Over The Indian Geographical Region
[Full Text]
AUTHOR(S)
Bala Murugan
KEYWORDS
Index Terms : GPS, PNT, GAGAN satellite, GAGAN augmentation, differential correction technique.
ABSTRACT
ABSTRACT: The Global Positioning System, which was commonly known by the North American implementation called GPS; the GPS fails to provide an accurate Position, Navigation, and Time (PNT) signal over the Indian region. The positional accuracy of GPS is not up to the mark over the Indian region because the India is located near the equator. Moreover, the equatorial ionospheric grid point (IGP) of India differs from the ionospheric grid point of North America so in order to improve the positional accuracy of GPS over Indian region, the Indian Space Research Organization along with the Airport Authority of India has launched the space based augmentation satellite called GPS aided and Geo Augmented Navigation satellite (GAGAN) with PRN number 127 and 128. The GAGAN will make corrections in the ionospheric, ephemeris, and satellite clock errors in the navigation messages received from the GPS satellites; the certification of GAGAN is under progress. The objective of this research is to analyze the positional accuracy of GPS and GPS augmented by GAGAN over the Indian geographical region by using differential correction technique.
REFERENCES
[1]. Anon, 2013, “Manual of Robokits GPS 02,” Robokits, http://robokits.co.in/shop/index.php?main_page=product_info&cPath=7_113&products_id=289, 2013.
[2]. C. Changsheng, and G. Yang, - Precious Point Positioning Using GPS and GLONASS Observations, Journal of Global Positioning System, Vol. 6, No. 1, PP. 13-22, 2007.
[3]. Dhiraj Sunehra, - Estimation of Prominent Global Positioning System Measurement Errors for GAGAN Applications, European Scientific Journal, Vol. 9, No. 15, PP. 1857-7881, 2003.
[4]. M. Harshali, G. Sivavaraprasad, and D. Venkata Ratham, - ARMA Perdition Model for GAGAN Applications, International Journal for Electronics and Communication Engineering, Vol. 5, No. 3, PP. 2230-9543, 2014.
[5]. S. Hnin, and M. Zaw, - Position Data Acquisition from NMEA Protocol of Global Positioning System, International Journal for Computer and Electrical Engineering, Vol. 3, NO. 3, 2011.
[6]. Y.L. Jung, Using Evolutionary Computation of GPS Position Correction, the Scientific World Journal, Vol. 2014, No. 6, Article ID 723736, 2014.
[7]. D. Keith, - The Modernization of GPS: Plans, New Capabilities and the Future Relationship to Galileo, Journal of Global Positioning System, Vol. 1, No. 1, PP. 1-17, 2002.
[8]. S.V. Kibe, - Indian Plan of Satellite Based Navigation System for Civil Aviation, Online Journal of Space for Space Communication, No. 9, 2006.
[9]. A.S. Mark, - GPS Navigation Using Three Satellites and a Precious Clock, Litton Aero Products, http://3csysco.com/Pubs/GPS%20Navigation%20Using%20Three%20Satellites%20and%20a%20Precise%20Clock.pdf, 1983.
[10]. C.K. Ravi V. Satya Srinivas, and V.D. Sarma, - Investigation Of Ionospheric Gradients for GAGAN Applications, Earth Planets Space, Vol. 61, PP. 633-635, 2009.
[11]. M.A. Reha A. Erosy, - GPS Standard Positioning Service after Selective Availability is Switched Off, International Symposium of GIS, PP. 23-26, 2002.
[12]. S. Sayeenathan, - Indian Regional Navigation Satellite System and GPS Aided and Geo Augmented Navigation System, ICG-8, pp. 5-9, 2013.
[13]. V.B.S. SrilathaSasi Bhushana, G. RaoSwapna Rani, S. Swarna Ravindra Babu, L. Rajkumar Goswami., and C.H. Usha Kumari, - Investigation of GDOP for Precise Position Computation with all Satellites in View and Optimum four Satellite Configuration, J. Ind. Geophys. Union, Vol. 13, No. 3, PP. 139-148, 2009.
[14]. J. Suryanarayana Rao, - GAGAN- Indian Satellite Based Augmentation System, Indian Journal of Radio and Space Physics, Vol. 36, PP. 293-302, 2007.
[15]. S. Surendra, B.M Vyas, S. V. Satish, V.P. Khekaleand, K.S. Partikh, - Improvements of Positional Accuracy with GAGAN and Impact of Scintillation, Scientific Journal. Vol. 4, PP. 282-288, 2013.
[16]. K. Tiwary, G. Sharada, and Praphlada, - Mitigating Effect of High GDOP on Position Fix Accuracy of Pseudolite Only Navigation System, Internatioanl Journal for Computer and Electronics Research. Vol. 2, No. 2, PP. 74-80, 2013.
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