● Radar (Radio Detection and Ranging) is a device which uses electromagnetic waves in the microwaves region to detect location (range & direction), altitude, intensity and movement of moving and non-moving objects.
What is Doppler Principle ?
● When the source and the signal are in relative motion to each other there is a change in the frequency observed by the observer. If they are moving closer frequency increases and vice versa.
● Doppler radar is a specific radar that uses the Doppler principle to produce relative motion data about objects at a distance.
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