ANALISIS PENGGUNAAN ONLINE DATA PROCESSING UNTUK PENENTUAN POSISI MENGGUNAKAN SATELIT GNSS

• Main Author: Roufal Hamdika, Ega
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/65345
• Institution: Institut Teknologi Bandung

Accurate GNSS data processing is generally done by post-processing using scientific or commercial software. In using the software required enough of cost, ability, and knowledge in its operation. Therefore, currently several agencies have developed a website-based platform to process GNSS data by online. The purpose of this study is to analyze the performance and important aspects related to the use of online data processing, especially for GNSS observations in the territory of Indonesia. The research methodology is to compare the coordinates of the processing results on online data processing (APPS, AUSPOS, CSRS-PPP, and InaCORS) with the results of processing on Bernese v5.2. The data used is static observation data at ITB1 and JOG2 points for 24 hours. Data analysis was carried out by varying the duration of observation to 1 hour, 3 hours, 6 hours, 12 hours, and 24 hours as well as varying the distance from the baseline to the control point. The value of RMSE horizontal position processed by APPS, CSRS-PPP, AUSPOS, and InaCORS at point ITB1 are 0.024 m, 0.027 m, 0.029 m, and 0.004 m respectively, the RMSE vertical position are 0.026 m, 0.024 m, 0.034 m, and 0.003 m respectively. While the horizontal RMSE values at point JOG2 are 0.027 m, 0.024 m, 0.028 m, and 0.017 m respectively, the RMSE vertical position are 0.024 m, 0.035 m, 0.029 m, and 0.070 m respectively. Based on the RMSE value, there are significant differences in the processing results other than InaCORS services. This is caused by differences in the epoch of reference frame. After calculating the correction using the Sundaland Block deformation model, the coordinate accuracy is around 2 centimeters.