surveillance drone system

air surveillance drone system

surveillance, high- and low-altitude surveillance

surveillance, under surveillance

jet-propelled surveillance drone

drone aerial surveillance

drone surveillance aircraft

target surveillance drone

surveillance drone

advanced surveillance drone

air surveillance drone

airborne surveillance drone

Army/Navy universal surveillance drone

battlefield surveillance drone

combat surveillance drone

TV-surveillance drone

disease surveillance system

joint surveillance and targeting attack radar system (JSTARS)

pilotless aircraft surveillance system

sea surveillance system

surveillance and attack system

Unmanned Carrier Launched Airborne Surveillance and Strike System (UCLASS)

surveillance towed array sensor system

distributed surveillance system (DSS)

integrated undersea surveillance system (IUSS)

integrated underwater surveillance system

multi-national space-based imaging system (for surveillance) (MUSIS)

ground-surveillance system (нім. Bodenüberwachungssystem)

address selective secondary surveillance radar system

joint surveillance system

night surveillance system

surveillance aircraft flight control system

surveillance and target acquisition aircraft system