RADAR Andrija cinotti 2.c..

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Presentation transcript:

RADAR Andrija cinotti 2.c.

RADAR The radar was invented by Robert Morris Page 1934.

RADAR Radar-Radio Detection And Ranging - a device for detecting objects on earth, in the sea and in the air using radio waves

RADAR The first usable radar had the British at the beginning of the Second World War. Using the radar they were easier to follow the German airplane crashes, and easier to organize the defense.

RADAR Modern radars are used in aviation and navigation to search for goals, but also in astronomy when studying the surface of distant planets. Nowadays, the police use radar to determine the speed of the vehicle.

RADAR Today's modern aviation aviation uses stealth technology that makes the aircraft virtually invisible radar.

RADAR Antenna emits a short pulse, which is rejected from the target. Based on the time spent returning the beam, the distance from the object is calculated.

RADAR RANGE The radar range depends on two factors: the radar horizon and the constructional performance of the device.

RADAR'S HORIZONT The radar horizon is the distance function, given the curvature of the Earth's surface, as well as atmospheric conditions affecting propagation. The radar horizon is larger than the optical, because the wavelength of the radar impulse is higher than the wavelength of light, so different densities vary more through the atmospheric layers

FINIŠ Izradio:Andrija Cinotti