[SIGINT 13] playlist: https://www.youtube.com/playlist?list=PLiq_fDYFoqMqEmzmkB0cIFwKrUJcz07Er
Space Based Signal Intelligence Systems : Global Trends & Technologies (presentation, PDF): http://indianstrategicknowledgeonline.com/web/space_sec_session%205_Sreehari%20Rao.pdf
