Radar is an Electromagnetic system for detecting and locating reflecting objects such as aircraft,ships,spacecraft,vehicles,people and natural environment.Radars system is such a classic system that includes all domain of electronics engineering  control system such as

•Electromagnetic
•Analog & Digital Electronics•Analog & Digital Communication•Microwave & Radiating Systems•Transmitters & Receivers •Signals &Data processing•Control Systems•Information & Detection Theory

The Basic Concept of Radar: