Radar is a system that uses radio waves to detect an object’s position, speed, and course. It has many applications, including military and coastal surveillance, missile guidance, bird tracking, air traffic control, and weather sensing. The term RADAR stands for Radio Detection and Ranging.
Radar is a system used to pinpoint the position, speed or course of an object. It can be used to track everything from aircraft to weather formations. It can also be used to detect excess traffic, wind speed and uneven terrain. The term RADAR is an acronym for Radio Detection and Ranging, although the term is now used as a single word rather than an abbreviation. The first radar patent was filed in 1904, but it wasn’t until World War II that the system really came into use.
A radar system works by sending radio waves into the air, which are reflected off the object and interpreted by a receiver. It has an almost unlimited range, as radio waves can be amplified using different mechanisms. There are basically five types:
Detection and search radar includes “early warning radar,” used for long-range object detection, and target acquisition (TA) radar systems, used to detect surface-to-air missiles (SAMs). These types are frequently used in military and coastal surveillance as well as to detect the speed of cars during highway patrolling. Missile guidance systems are used to locate the target of a missile. This is often seen in military aircraft. Biological research radar includes tracking birds and insects to track their migration patterns. Bird radar is also used at NASA’s Kennedy Space Center in Florida to track the presence of birds, particularly vultures, near launch pads. Trap and release programs have been implemented to prevent birds from accidentally hitting the shuttles after takeoff. Air traffic control and navigation radar are used by airports to ensure aircraft safety. This type detects the proximity of an aircraft and identifies the aircraft’s identity and altitude. Radio beacons and distance measuring equipment (DME) also fall into this category. Weather-sensing radar systems are primarily used to measure and locate rainfall. They can also measure wind direction and speed.
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