3Cat-4: Combined GNSS-R, L-Band Radiometer with RFI Mitigation, and AIS Receiver for a I-Unit Cubesat Based on Software Defined Radio. - Joan Francesc Muñoz-Martín; Noemí Miguelez; Ricard Castella; Lara Fernández; Arnau Solanellas; Pol Via; Adriano Camps (IGARSS, 2018)