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Airspace Systems Technologies
Published in Emily S. Nelson, Dhanireddy R. Reddy, Green Aviation: Reduction of Environmental Impact Through Aircraft Technology and Alternative Fuels, 2018
Typically, an ADS-B-capable aircraft derives its position from the Global Positioning System (GPS) of satellites and may combine that position with any number of aircraft variables, such as speed, heading, altitude, and flight number. This information can be shared with other ADS-B- capable aircraft and ATC centers in real time. ADS-B provides two different services: ADS-B-out and ADS-B-in. ADS-B-out periodically broadcasts information about the aircraft itself—such as an aircraft’s identification, current position, altitude, and velocity—through an onboard transmitter. It displays the aircraft’s location to controllers on the ground or to pilots in the cockpits of aircraft equipped with ADS-B-in. ADS-B-in allows aircraft to receive traffic and weather information data and other ADS-B data, such as direct communication from nearby aircraft.
Technological Constraints
Published in Steven D. Jaffe, Airspace Closure and Civil Aviation, 2016
ADS-B is an acronym for Automatic Dependent Surveillance–Broadcast: automatic in that the position data from the aircraft is automatically transmitted on a periodic basis with no input from the pilot or controller; dependent as it is dependent on navigation systems (GPS and the airplane's flight management system) as a basis for reporting; surveillance because it is a method of determining the position of an aircraft or ground vehicle; and broadcast because the broadcast transmission is available to anyone with appropriate receiving equipment.
Authorities in aviation
Published in Gert Meijer, Fundamentals of Aviation Operations, 2020
Presently the aviation industry is in the process of introducing ADS-B, Automatic Dependent Surveillance-Broadcast, under EASA in 2017 and FAA in 2020. This device, installed in aircraft, determines the aircraft’s position by means of GPS and broadcasts its position, together with information on the aircraft’s speed, heading and altitude, to any other ADS-B user, be it other aircraft, website or ground station. This technology will in due course replace today’s ATC.
Research on potential ground risk regions of aircraft crashes based on ADS-B flight tracking data and GIS
Published in Journal of Transportation Safety & Security, 2022
Yafei Li, Yu Zhang, Lili Wang, Xudong Guan
The purpose of this research was to build a regional cartographic model (risk map) for potential ground impacted areas of aircraft crashes using large-scale aviation flight data, aircraft crash models, and geographic information system (GIS) spatial analysis methods. Automatic dependent surveillance—broadcast (ADS-B) is a satellite-based surveillance technology in which one aircraft can periodically broadcast its position to ground stations and other aircraft. This helps improve the precision of position location and situation awareness. ADS-B provides large-scale aviation flight data. Based on these data, a GIS density analysis method was applied to obtain a regional aircraft flight-path line density (FPLD) distribution map and to model aircraft crash trajectories. Then, combined with sociodemographic and socioeconomic attributes of the region, a ground potential risk mapping model for aircraft crashes was built. A method to indicate the crash severities of potential aviation-crash caused impacts with categorical values and visualize that on the risk map is proposed, and the research approach is demonstrated using Florida as an example.