Comparison of PPPH MATLAB based program vs Online GNSS Services | ||||
| Delta University Scientific Journal | ||||
| Volume 6, Issue 1, April 2023, Page 1-7 PDF (433.29 K) | ||||
| Document Type: Original research papers | ||||
| DOI: 10.21608/dusj.2023.290971 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mahmoud El-Mewafi1; Ahmed zaki* 2; Ashraf G. Shehata  3; Mariem A. Elhalawani* 3
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| 1Department of Public Works, Faculty of Engineering Mansoura University, Egypt. | ||||
| 2Civil Engineering Dept, Faculty of Engineering, Delta University for Science and Technology | ||||
| 3Civil Engineering Dept, Faculty of Engineering, Delta University for Science and Technology, Gamasa City, Egypt | ||||
| Abstract | ||||
| The modernization of GNSS provides promising improvements to satellite navigation users across the world, it is important to determine the reliability of using free online processing software for the Global Navigation Satellite System post-processing. The study aims at assessing the accuracy of two free online processing software, GAPS, and CSRS-PPP and Open-source software, PPPH MATLAB based software, and GNSS solutions. Field observations were carried out on data from three stations using GNSS observation from IGS with an observation period of 30 seconds the acquired data were post-processed using both online and open-source software. The coordinates generated from each software were then compared with the ones obtained from station to determine their relative discrepancies and accuracies. for GAPS and CSRS-PPP both in X, Y, and Z direction in ITRF14 reference. Online GNSS processing services are easy to use, do not require the knowledge of GNSS data processing and can be adopted for engineering and geodetic applications. Initial time must be checked for better resolution. | ||||
| Keywords | ||||
| Online processing services; GNSS; GAPS; CSRS-PPP; PPPH | ||||
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