Radiolocating



 Radar is an object detection system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain. A radar system has a transmitter that emits microwaves or radio waves. These are reflected by the target back to a receiver, usually in the same location as the transmitter. Although the signal returned is usually very weak, the signal can be amplified and displayed.