1. Engineering Department, Ingeniería de Sistemas para la Defensa de España S.A. (ISDEFE-INTA) and Technical University of Madrid (UPM), Torrejón de Ardoz (Madrid), Spain
2. Fluid Dynamics Branch, Spanish National Institute for Aerospace Technology (INTA), Torrejón de Ardoz (Madrid), Spain
3. Department of Signal Theory and Communications, University of Alcalá (UAH), Alcalá de Henares, Spain