Issue link: https://applanix.trimble.com/en/resources/i/1410482
experience, the design team knew that obtaining an accurate heading was challenging. Therefore, if a single GNSS antenna was used, there would be excessive uncertainty that would make post-processing difficult. A dual antenna GNSS/INS solution was therefore selected. Integrating a GNSS/INS Solution Routescene required a GNSS/INS solution that was: ► scalable in accuracy ► lightweight ► cost effective ► compatible with a wide range of Base Station receivers on the market Having reviewed all available GNSS/INS products on the market, Routescene selected a solution based on the Trimble BD992 receiver module. This latest generation GNSS receiver is combined with magnetometers and a pressure sensor, together with a temperature calibrated Inertial Motion Unit (IMU) containing the accelerometers and gyroscopes. These are coupled in a sophisticated fusion algorithm to deliver accurate and reliable navigation and orientation information. Routscene Ground Station The Routescene Ground Station is an essential component of the package. It ensures: ► RTK GNSS corrections are transmitted to the LidarPod via a UHF radio link. ► Quality assurance and status information are transmitted from the LidarPod to the Ground Station. This information is displayed in QA Monitor, Routescene's real-time in-flight data monitoring application. ► Complete independence, with as little reliance as possible on third party resources and infrastructure. This is important since surveying can occur anywhere in the world and in remote unmapped regions. ► ► The complete Routescene UAV LiDAR system