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Radar And Lidar

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  RADAR In this article, I discuss the working of radar and Lidar and their differences. Radar  was coined in 1940 by the United States Navy as an acronym for  radio detection and ranging . [ 1 ]   Radar  uses radio waves to determine the distance, angle, and radial velocity of objects relative to the site. To detect and track aircraft, ships, spacecraft, guided missiles, and map weather and terrain, we use radar.   Modern radar systems use digital signal processing and machine learning. They are capable of extracting useful information from very high noise levels. Other systems which are similar to radar make use of other parts of the electromagnetic spectrum. For example, lidar uses predominantly infrared light from lasers rather than radio waves. With the emergence of driverless  vehicles, radar assists the automated platform to monitor its environment, thus preventing unwanted incidents. [ 2 ]   A radar system consists of: A transmitter produces electromagnetic waves in the radio o