Automatic Dependent Surveillance – Broadcast (Ads-B)
Automatic Dependent Surveillance – Broadcast (ADS-B)
ADS-B is one of the most important, underlying technologies in the FAA’s plan to transform air traffic control from the current radar-based system ( that was invented during World War II) to a satellite-based system. ADS-B is bringing the precision and reliability of satellite-based surveillance to the nation’s skies.
AviationGlossary.com defines ADS-B as Automatic Dependent Surveillance Broadcast ADS-B is a next generation surveillance technology incorporating both air and ground aspects that provide air traffic control (ATC) with a more accurate picture of the aircraft’s three-dimensional position in the en route, terminal, approach and surface environments. The aircraft provides the airborne portion in the form of a broadcast of its identification, position, altitude, velocity, and other information. The ground portion is comprised of ADS-B ground stations which receive these broadcasts and direct them to ATC automation systems for presentation on a controller’s display. In addition, aircraft equipped with ADS-B In capability can also receive these broadcasts and display the information to improve the pilot’s situation awareness of other traffic.
• Automatic — periodically transmits ID information with no pilot or operator input required
• Dependent - position and velocity vector are derived from the Global Positioning System (GPS) or a Flight Management System (FMS)
• Surveillance — a method of determining position of aircraft, vehicles, or other assets
• Broadcast — transmits information available to anyone with the appropriate receiving equipment. [1]
How Does ADS-B Work?
ADS-B uses conventional Global Navigation Satellite System (GNSS) technology and a relatively simple broadcast communications link as its fundamental components. Unlike radar, ADS-B accuracy does not seriously degrade with range, atmospheric conditions, or target altitude and update intervals do not depend on the rotational speed
ADS-B is one of the most important, underlying technologies in the FAA’s plan to transform air traffic control from the current radar-based system ( that was invented during World War II) to a satellite-based system. ADS-B is bringing the precision and reliability of satellite-based surveillance to the nation’s skies.
AviationGlossary.com defines ADS-B as Automatic Dependent Surveillance Broadcast ADS-B is a next generation surveillance technology incorporating both air and ground aspects that provide air traffic control (ATC) with a more accurate picture of the aircraft’s three-dimensional position in the en route, terminal, approach and surface environments. The aircraft provides the airborne portion in the form of a broadcast of its identification, position, altitude, velocity, and other information. The ground portion is comprised of ADS-B ground stations which receive these broadcasts and direct them to ATC automation systems for presentation on a controller’s display. In addition, aircraft equipped with ADS-B In capability can also receive these broadcasts and display the information to improve the pilot’s situation awareness of other traffic.
• Automatic — periodically transmits ID information with no pilot or operator input required
• Dependent - position and velocity vector are derived from the Global Positioning System (GPS) or a Flight Management System (FMS)
• Surveillance — a method of determining position of aircraft, vehicles, or other assets
• Broadcast — transmits information available to anyone with the appropriate receiving equipment. [1]
How Does ADS-B Work?
ADS-B uses conventional Global Navigation Satellite System (GNSS) technology and a relatively simple broadcast communications link as its fundamental components. Unlike radar, ADS-B accuracy does not seriously degrade with range, atmospheric conditions, or target altitude and update intervals do not depend on the rotational speed
References: 1. ADS-B. Aviation Glossary. Retrieved December 14, 2010, from http://aviationglossary.com/air-traffic-control-term-definition/adsb-automatic-dependent-surveillance-broadcast/ 2. ADS-B, Technologies. (2010, December 14). Next gen air traffic management specialists. Retrieved from http://ads-b.com/ 3. Air Transport, Association. (2010). Questions and answers on automatic dependent surveillance broadcast (ads-b). Retrieved from http://www.airlines.org/SafetyOps/FlightOperations/Pages/ADS-B.aspx 4. Department of Transportation, Federal Aviation Administration. (2010). Fact sheet – automatic dependent surveillance-broadcast (ads-b) FAA website: Retrieved from http://www.faa.gov/news/fact_sheets/news_story.cfm?newsid=7131 5. Department of Transportation, Federal Aviation Administration. (2010). Fact sheet – automatic dependent surveillance-broadcast (ads-b) FAA website: Retrieved from http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/enroute/surveillance_broadcast/program_office_news/media/Follow%20Up%20Contract%20Award_ADS-B%20Q&As_8-30-07_Final.pdf 6. Automatic dependent surveillance-broadcast. (2010).Wikipedia. Retrieved December 14, 2010, from http://en.wikipedia.org/wiki/Automatic_dependent_surveillance-broadcast#Worldwide 7. Sheridan, John. (2009, March 1). Europe plans for 2015 ads-b avionics mandate. Retrieved from http://www.ainonline.com/news/single-news-page/article/europe-plans-for-2015-ads-b-avionics-mandate-20001/ 8. Department of Transportation, Federal Aviation Administration. (2010). Fact sheet – automatic dependent surveillance-broadcast (ads-b) Retrieved from http://www.faa.gov/news/fact_sheets/news_story.cfm?newsid=7131