OMOSA: Open Modular/Open Source Avionics Architecture for Remotely Piloted Aircraft Systems

The project aims at the investigation of a modular, open-source system architecture of avionics especially for the challenges of small unmanned aerial vehicles. Using modular hardware and open-source software, an aircraft electronic device shall be set up and used for flight control. In addition, a navigation system utilizing GNSS, inertial sensors, barometer and magnetometers will be implemented. To complete the system, a C2 link and aircraft antennas integrated into the fuselage are considered. For small unmanned aerial vehicles with limited transport capacity only light-weight low-cost sensors with reduced quality are eligible for the navigation module. On the other hand, existing autopilot systems usually do not provide the required accuracy and do not provide any quality information of the navigation parameters. As a result, the optimal solution concerning accuracy and reliability will be achieved utilizing a self-implemented and tailored loosely coupled extended Kalman filter to integrate the different sensors (GNSS, IMU, barometer and magnetometers). To increase the safety margins for unmanned aerial vehicles, one focus of the research is to find out how to define and calculate reliable quality measures for the outputs of the navigation module.


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This project was funded by the Austrian Promotion Agency (FFG) within the programme line "TAKE OFF".


Dorn, M.; Lesjak, R.; Wieser, M.:
Improvement of the Standard GNSS/IMU Solution for UAVs Using Already Existing Redundant Navigation Sensors - in: European Navigation Conferece (ENC). Helsinki, 01.06.2016 Lesjak, R.; Dorn, M.; Huber, K.; Wieser, M.:
The Influence of the GNSS Solution on the Estimated Parameters in the Course of Sensor Integration - in: International Association of Institutes of Navigation World Congress (IAIN). Prague, 22.10.2015 Dorn, M.; Lesjak, R.; Wieser, M.:
Improvement of the GNSS Solution for Advanced RPAS Applications Utilizing PPP, RTK or Sensor Integration - in: International Micro Air Vehicles Conference and Flight Competition (IMAV). Aachen, 15.09.2015
Manfred Wieser
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