Airport Surveillance Radar

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Airport Surveillance Radar

An airport surveillance radar (ASR) is a radar

Radar

Radar is a system that uses electromagnetic radiation 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....
system used at airport

Airport

An airport is a location where aircraft such as Fixed-wing aircraft, helicopters, and Non-rigid airship take off and land. Aircraft may also be stored or maintained at an airport....
s to detect and display the position of aircraft

Aircraft

An aircraft is a vehicle which is able to flight by being supported by the air, or in general, the atmosphere, of a planet. Examples include balloons, airplanes and helicopters....
in the terminal area.

Digital Airport Surveillance Radar (DASR) is a new terminal air traffic control radar system that replaces current analog systems with new digital technology.

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Digital Airport Surveillance Radar

The Digital Airport Surveillance Radar (DASR) is a new terminal air traffic control radar system that replaces current analog systems with new digital technology. The United States Air Force

United States Air Force

The United States Air Force is the aerial warfare branch of the Military of the United States and one of the uniformed services of the United States....
Electronics Systems Center, the US Federal Aviation Administration

Federal Aviation Administration

The Federal Aviation Administration is an agency of the United States Department of Transportation with authority to regulate and oversee all aspects of civil aviation in the U.S....
, and the US Navy are in the process of procuring DASR systems to upgrade existing radar facilities for US Department of Defense

United States Department of Defense

The United States Department of Defense is the federal department charged with coordinating and supervising all agencies and functions of the government relating directly to national security and the Military of the United States....
(DoD) and civilian airfields. The DASR system detects aircraft position and weather conditions in the vicinity of civilian and military airfields. The Civilian nomenclature for this radar is the ASR-11. The ASR-11 will replace existing ASR-7, ASR-8, and ASR-9 models. The military nomenclature for the radar is the AN/GPN-30. The older radars, some up to 20 years old, are being replaced to improve reliability, provide additional weather data, reduce maintenance cost, improve performance, and provide digital data to new digital automation systems for presentation on air traffic controller displays.

Display systems

ASR data is displayed on Automated Radar Terminal System (ARTS) display consoles in control towers and Terminal Radar Approach Control (TRACON) rooms, usually located at airports. These are being replaced with STARS.

The Standard Terminal Automation Replacement System (STARS) is a joint Federal Aviation Administration (FAA) and Department of Defense (DoD) program to replace Automated Radar Terminal Systems (ARTS) and other capacity-constrained, older technology systems at 172 FAA and up to 199 DoD terminal radar approach control facilities and associated towers.

STARS will be used by controllers to provide air traffic control

Air traffic control

Air traffic control is a service provided by ground-based Air traffic controller who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other support for pilots when able....
(ATC) services to aircraft in terminal areas. Typical terminal area ATC services are defined as the area around airports where departing and arriving traffic are served. Functions include aircraft separation, weather advisories, and lower level control of air traffic. The system is designed to accommodate air traffic growth and the introduction of new automation functions which will improve the safety and efficiency of the US National Airspace System

National Airspace System

The National Airspace System of the United States is one of the most complex aviation systems in the world ? consisting of thousands of people, procedures, facilities, and pieces of equipment ? that enables safe and expeditious air travel in the United States and over large portions of the world's oceans....
(NAS) as the legacy systems are replaced.