The increasing grade of automation is UAV based reconnaissance lead also to an increased dependence on satellite based navigation systems (GNSS). This fact is also recognised by counter UAV activities, specifically used to block UAV operation. In order to fully understand this cat-and-mouse game between UAV and the counter activities, both sides are investigated within this project. During the research-project TAUBE, the effectiveness of electromagnetic counter UAV methods, such as GNSS-jamming, on well-established UAVs as well as its protection approaches are investigated in parallel.
The goal of the research-project TAUBE is a proof of concept for an innovative „Multi-sensor- fusion“ systems, which will dynamically combine various position and orientation sensors. Within TAUBE the potential of an innovative radar based sensor will be investigated as additional redundant sensor signal input. The Multi-sensor- fusion algorithm will be optimized for dynamically varying sensor qualities (GNNS-signal available, jammed, sensor drift, good / bad contracts of optical or radar based position sensors). Due to the complexity of state of the art UAV sensors and flight controllers (especially GNSS, which has a very complex signal characteristic as well as camera based positioning systems), a proof of concept by simulation delivers only limited or approximate results. For this reason sensor data has to be recorded under real environmental conditions with active GNSS-jammer in place.
As active GNNS-jammer are forbidden in civil airspaces, flight tests for data recording with the Schiebel CAMCOPTER® S-100 and a Multicopter-UAV of the BMLV, a test area will be provided by the BMLV/ÖBH. At the test area “Seetaler Alpe“ test flights under active GNNS-jamming condition can be carried out. Next to different GNSS-receiver, IMUs a novel radar sensor from the Johannes Kepler University Linz will be combined and scientifically investigated with the novel „Multi-sensor- fusion“ algorithm form Alpen-Adria-Universität Klagenfurt. Within the research-project, TAUBE investigates the limitation of this technology already at an early technology readiness level.