USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION
mohmmed, Z. (2019). USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION. EKB Journal Management System, 58(3), 12-9.
Zahraa mohmmed. "USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION". EKB Journal Management System, 58, 3, 2019, 12-9.
mohmmed, Z. (2019). 'USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION', EKB Journal Management System, 58(3), pp. 12-9.
mohmmed, Z. USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION. EKB Journal Management System, 2019; 58(3): 12-9.

USING MULTI TECHNIQUES BY COMBINING TRIPLE-CONSTELLATION (GPS, GALILEO AND BEIDOU) FOR ENHANCING LEVEL OF ACCURACY AND THE CONVERGENCE TIME OF THE GNSS SOLUTION

Journal of the Egyptian Society of Engineers
Article 27, Volume 58, Issue 3, December 2019, Page 12-9  XML PDF (180.34 K)
Document Type: Scientific and technological
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Author
Zahraa mohmmed email
Professor, Department of Civil Engineering Azhar University, Cairo, Egypt
Abstract
This paper will discuss the" Between-Satellite-Single-Difference" (BSSD) ionosphere-free linear combination of pseudoranges and carrier phase measurements from GNSS constellation namely "GPS, GALILIO and BeiDou". Inter system Biases will be removed from both code and phase. The using of BSSD technique can improve the precision of the latitude, longitude and altitude components, by comparison it with the traditional undifferenced technique the result show better positioning precision. This method will present an efficient model for precise point positioning (PPP).  BSSD "Between satellite signal difference” can cancel out the receiver hardware delay, receiver clock error, and the non-zero initial phase of the receiver will illustrate that the PPP solution will be improved by using our BSSD-based model in comparison with traditional undifferenced PPP model.
Keywords
BSSD; Undifferenced Technique; Precise Point Positioning (PPP)
References
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