Basic of RADAR by Monika Kiroriwal

In this Video, Monika Kiroriwal, Assistant Professor, Biyani Group of Colleges explains about the RADAR, which stands for Radio Detection and Ranging and it was first introduced during 2nd world war to detect enemy aircrafts. Basically radar is a EM system to detect the range and location of the device it may be car, space, craft and natural environment. Radar transmitter generates an EM signal into free space and strike on the target and reradiates from the target in the form of echo signal. These echo signals are collected by antenna and receiver receives these signals and range of target is calculated by measuring the time taken by signal to travel to target and return back to radar.