What Is A Radar?

RADAR - AviatorsBuzz

Radar is an electronic system that measures the range and bearing of objects by transmitting an electromagnetic pulse at the object and listening for the echo.

  • Acronym for “Radio Detection And Ranging”.
  • The system consists of a transmitter producing electromagnetic waves, a transmitting antenna, a receiving antenna, and a receiver and processor to determine the properties of the object.
  • Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object.
  • Determine the range, angle, or velocity of objects.
  • Used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
In aviation, many types of radar are in use:
  • Area Radars, Surveillance Radars, and Approach Radars allow controllers to track aircraft within their area of responsibility
  • Precision Approach Radars (PAR) enables controllers to provide precision approach guidance to aircraft landing in instrument conditions
  • Surface Movement Radar enables controllers to track the movement of aircraft and vehicles on an aerodrome surface
  • Weather Radar gives pilots situational awareness of hazardous weather, especially thunderstorms
  • Radio Altimeters accurately measure the height of an aircraft above the surface
  • Secondary Surveillance Radar enables aircraft to pass additional information, such as identification and flight level, back to the interrogating radar

Source : wiki, skybrary

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Meet Shivam and Sumit two very enthusiastic avgeeks. They've done their Bachelors of Technology in Aeronautical Engineering and run “A for Aviation”. They’re here with us on AviatorsBuzz, to share their expertise on all things Aviation as their constant motive has always been to share as much knowledge with the aviation community as possible.