1. Cognitive Methods Department, Fraunhofer Institute for High Frequency Physics and Radar Techniques (FHR), Wachtberg, Germany
2. Department of Aerodynamics, Measurements and Simulations, French-German Research Institute of Saint-Louis (ISL), Saint-Louis, France
3. Fraunhofer Institute for High Frequency Physics and Radar Techniques (FHR), Wachtberg, Germany