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To detect, track, and sometimes identify objects via the emission of radio waves.

Speed radar (like those used by police) can detect nearby objects and calculate their speed.

Weather radar can detect the location of clouds and rain.

Air traffic radar can detect and track unidentified flying objects. With the help a monopulse secondary surveillance radar, the radar system can identify the individual planes.

Higher technology radars can detect and identify distant small objects with great precision.

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12y ago
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15y ago

Radar sends out a radio wave and measures the reflected radio wave using it to calculate a target's speed, shape, material the object is made of, and direction of movement.

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Q: What are the functions of a radar?
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