EVALUASI PENGGUNAAN KOREKSI WAKTU DAN ORBIT SATELIT QZSS UNTUK PENENTUAN POSISI METODE PPP DI INDONESIA

• Main Author: Theresia, Rachel
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/65279
• Institution: Institut Teknologi Bandung

Precise Point Positioning (PPP) is one of the absolute positioning methods that eliminates or models GNSS (Global Navigation Satellite System) systematic errors to provide a high level of accuracy from a receiver. Currently, there are time and orbit corrections for satellites from QZSS (Quasi-Zenith Satellite System) with global coverage under the name MADOCA (Multi-GNSS Advanced Demonstration Tool for Orbit and Clock Analysis) for positioning the PPP method. The purpose of this study was to analyze the performance of using QZSS satellite orbit and time correction for positioning the PPP method in Indonesia. In this study, data was used from 21 BIG (Geospatial Information Agency) stations spread across Indonesia on days 311 and 312 in 2021. In processing the data, RTKLIB version 2.4.3 b34 was used, open-source software, with time and orbit corrections. from MADOCA and IGS (International GNSS Service). FES2014b is also used to correct for tidal effects and DCB (Differential Code Biases) from IGS. Furthermore, the difference and analysis will be carried out on the use of time corrections and orbits of the QZSS and IGS satellites with control points from BIG. The results show that the use of MADOCA correction produces more accurate results than the data using IGS. This is evidenced by the t-student statistical test with a 95% confidence level. The data corrected by IGS and MADOCA have entered into the PPP method accuracy of 3-5 cm.