Radar is an object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles , weather formations , and terrain. The radar dish or antenna transmits pulses of radio waves or microwaves that bounce off any object in their path. The object returns a tiny part of the waves energy to a dish or antenna that is usually located at the same site as the transmitter.
Posted on: Wed, 16 Jul 2014 15:13:05 +0000
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