What Is The Functionality Of Radar?

Radar (radio detection and ranging) employs high-frequency radio waves for detecting objects like ships, aircraft, motor vehicles and aeroplanes. It is used to determine the position of the object location, direction and speed of the moving object. In 1941, the term RADAR was coined. A rotating aerial (transmitter) sends out pulses which are reflected from the objects on which they fall. The time interval between the transmission and reception of pulses helps determine the distance of the object. A picture of the scanned area is produced on the screen of a special cathode ray tube. The application of Radar basically entails methodological detection of precipitation, speeding traffic by the detection of police, air traffic control.

The primary principles of the transmission of radar entail polarization, interference, noise, clutter and jamming. The first phase of radar signal processing is the distance measurement calculating the pulse round trip time. The measurement includes transit time, frequency modulation and speed measurement.