Air Search Radar is a system used for detecting and locating aircraft and other objects in the airspace. The term radar is derived from the acronym "radio detection and ranging." There are a few synonyms for Air Search Radar, including Surveillance Radar, Airborne Radar, and Radar Detection. A Surveillance Radar is generally used to monitor larger areas from an elevated platform, such as an airplane or helicopter. Airborne Radar can be used on aircraft to detect other aircraft, while Radar Detection refers to the process of detecting objects in the airspace. Other synonyms include air traffic radar, air control radar, and air surveillance radar. These systems all work on the same principles of detecting and locating objects in the airspace for safety and control purposes.