"Diego Cristallini is the head of the Passive Radar Group at Fraunhofer FHR, Germany. His research interests are in multi-channel radar signal processing, in STAP, GMTI, SAR, and passive radar. Dr Cristallini serves as a reviewer for several international technical journals. He is also a regular lecturer at the Fraunhofer International Summer School on Radar and SAR. Dr Cristallini is the co-chair of the NATO group SET-242 on ""Passive radars on moving platforms."" Daniel W. O'Hagan is the head of the Passive Radar and Anti-Jamming Techniques Department (PSR) at Fraunhofer FHR, Germany. He is associate professor of radar at the University of Cape Town (UCT) and professor at the University of Birmingham, UK. He has been lecturing full postgraduate (Masters and PhD) courses on radar systems and antenna array synthesis since 2014. Professor O'Hagan is the chair of two full-status NATO groups, SET-268 and SET-296."