GNSS positioning improvement based on Satellite Selection

Containers terminal is a high-level automation environment, within a crucial component is fleet management, however, due to the abundance of containers and machines in this area, truck’s GNSS receivers suffer from phenomena like multipath and NLOS, as a result, the errors of positioning service became higher than the requirement of this type of industry. To avoid NLOS and multipath we propose in this paper, a heuristic based on satellite selection which consists of masking GNSS signals coming from satellites having less than 30-degree elevation, thus we calculate positioning using only satellites with 30 to 90-degree elevation. The results of our research demonstrates that the suggested approach is significantly better than the conventional method in this specific area, and we validate this solution with other calculations.