ALTERNATIVE TERRESTRIAL POSITIONING COMPUTATION METHOD WITHOUT ANGLE AND DISTANCE REDUCTION

• Main Author: Dwiatmoko (NIM : 15113036), Rainaldy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23805
• Institution: Institut Teknologi Bandung

In positioning using polygon method, the desired position coordinates are usually defined on the UTM projection, however angle and distance are measured on the earth surface. If horizontal angle and distance data are directly used to determine positions on the UTM projection, there will be position error. This position error occurs because of angle and distance data has not been reduced to the projection surface. Reduction is necessary because angle and distance data are still defined on the earth surface, however angle and distance reduction is a complex and relatively difficult process. Therefore, an alternative positioning method using polygon on the map is required so that the angle and distance can be directly used without the need for reduction. <br /> <br /> <br /> <br /> <br /> This Final Project aims to realize the alternative positioning method, to determine survey area coverage, and to compare UTM projection coordinates. The conclusion is to make angle and distance not needed to be reduced, the ellipsoid and the projection surface are tangent on the middle of the survey area. The survey area coverage and the average geodetic height in the survey area should be limited to minimum because of the distance distortion is directly proportional to the distance from the tangent point. The UTM coordinates of the coordinate transformation from the temporary projection has a small difference from the GPS observation coordinates, this is because the polygon measurements are less precise.