passive surveillance system
пасивна система спостереження
passive optical surveillance system
passive electronically scanned array (PESA) / passive phased array
surveillance, high- and low-altitude surveillance
surveillance, under surveillance
heat passive homing guidance system
joint surveillance and targeting attack radar system (JSTARS)
pilotless aircraft surveillance system
surveillance and attack system
Unmanned Carrier Launched Airborne Surveillance and Strike System (UCLASS)
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)