passive radar वाक्य

The air-defense system said to have been sold to Iraq, known as Kolchuha, is a " passive radar " that can track approaching aircraft and vehicles and aim weapons without being detected.
Beginning in 1942, Dr . W�chter of Telefunken, working with radio engineers at the Reichspost, used this information to build a passive radar system using the CH broadcasts and their own receivers.
The term " passive radar " is sometimes used incorrectly to describe those passive sensors that detect and track aircraft by their RF emissions ( such as radar, communications, or transponder emissions ).
Terminal guidance can be done with active radar homing, passive radar or Electronic warfare support measures, infrared homing or optical guidance, or the ( fixed ) target was predesignated with as final waypoint.
A method known as " " Wilde Sau " " was used, in which single-engine fighters were supported by searchlights, and using passive radar detector guidance instead of radar, to destroy enemy bombers.

John Hansman, professor of aeronautics and astronautics at the Massachusetts Institute of Technology, said passive radar is still in its " infancy, but is something that will lead to new stealth research ."
Some aviation experts suspect the Serbs used a rough version of passive radar _ plugging computers into their existing air defense system _ to locate an F-117A Nighthawk stealth bomber, shot down in 1999.
The newest upgrade, the " AGM-88E Advanced Anti-Radiation Guided Missile ( AARGM ), " features the latest software, enhanced capabilities intended to counter radar shutdown and passive radar using an additional active millimeter wave seeker.
Over the years he worked on 2D and 3D manoeuvring target tracking, and has still been working on maritime patrol radar problems; noise and passive radar s, and high resolution Synthetic aperture radar radar imaging.
The Strela-1 platoon contains, in addition to a command vehicle, one TEL fitted with a passive radar detection system similar to a Radar Warning Receiver, and several more ( usually three ) without any radar system.