Using AsteRxi GNSS/MEMS IMU receiver in a container positioning system

High-end GNSS receivers are deployed in rapidly increasing numbers in industrial applications. Their challenging operational environment exposes the vulnerability of GNSS technology. For example, container terminal operators in harbors are increasingly using GNSS positioning for their container positioning systems. The primary goal of using GNSS in such an application is to reduce the amount of lost containers for economical and safety reasons. Therefore, it is important to track each container in a reliable and accurate manner. While this is typically not an issue for the positioning of containers on the yard for professional GNSS receivers due to open-sky conditions, problems arise below cranes and in the vicinity of ship hulls. At these locations, a GNSS-only position solution is insufficient due to the large metal surfaces which cause low measurement availability and increase the possibility that signals are tracked via indirect paths.