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BookmarkRADAR is a system used to detect, range, and map objects such as aircraft, ships, and rain.
Powerful radio waves are transmitted, and a receiver listens for any echoes.
By analysing the reflected signal, the reflector can be located, and sometimes identified..
For more information about the topic Radar, read the full article at Wikipedia.org, or see the following related articles:
Altimeter — An altimeter is an active instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, ... > read more
Doppler effect — The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an ... > read more
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Radar at Wikipedia.org. See the Wikipedia copyright page for more details.
