RADAR stands for Radio Detection and Ranging. It is an active remote sensing system that works by transmitting radio waves toward a target and receiving the reflected (backscattered) waves to determine information about the target. By measuring the time delay between transmission and reception of the pulses, the distance to the target can be calculated. Additionally, the intensity and polarisation of the returned signal can provide information about the target’s size, shape, and material properties.
RADAR can operate day and night and is largely unaffected by weather conditions like clouds or rain. It is widely used in various applications, including air traffic control, military surveillance, mapping terrain, monitoring environmental changes, and measuring sea surface characteristics. Overall, RADAR is a versatile and powerful tool in remote sensing technology.
