OPTIMIZATION OF INA-CORS NETS ON KALIMANTAN ISLAND AND SULAWESI ISLAND TO DETECT SMALL MAGNITUDE DEFORMATION

• Main Author: Hafidz Yusrir Roziq, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/68275
• Institution: Institut Teknologi Bandung

The Global Navigation Satellite System (GNSS) is a positioning system with the help of satellites that can provide position information. In its implementation, this GNSS requires accuracy in accordance with its accuracy, among others, for surface observations in the Kalimantan, Sulawesi region and the use of the Ina-CORS GPS station, the Indonesia Continuously Operating Reference Station (Ina-CORS) is a continuous geodetic observation. has a Global Positioning System (GPS) system, which operates around the clock to record GNSS satellite data which will then be processed to provide information on the position of objects on the earth's surface. The purpose of this study is to increase the level of accuracy of Ina-CORS GPS nets in Sulawesi nets, Kalimantan nets by determining a good Global Positioning System (GPS) net design, accuracy in Ina-CORS GPS is very important to measure deformation, where accuracy is needed to binding points on the Ina-CORS net, and precision is required for each Ina-CORS station. These results will later be taken into consideration for the installation of GPS Ina-CORS. The data used is Ina-CORS coordinate point data in Kalimantan, Sulawesi. the method used by the researcher is the Single Objective Optimization Models (SOOM) of Precision method. With this method, it is possible to determine the strength of the GPS net that can detect shifts of up to 5mm by taking into account the weight of each baseline point used, using only eligible baselines. The results obtained from this study are the Ina-CORS GPS net design in the Kalimantan region, Sulawesi with a baseline that can detect shifts of up to 5mm. It is proven by baseline elimination by estimating the initial weight, final weight and normal weight, then reducing the variance value and there is no significant difference from Fisher Geometric Dilution of Precision (GDOP).