1. Università di Napoli Parthenope,Dipartimento di Ingegneria,Napoli,Italy,80143
2. Unidad María de Maetzu, CommSensLab-UPC, Universitat Politcnica de Catalunya-BarcelonaTech and Institut d'Estudis Espacials de Catalunya IEEC/CTE-UPC,Dept. of Signal Theory and Communications
3. AIRBUS Defence & Space, Space Systems,Madrid,Spain