Automatic Dependent Surveillance – Broadcast (Ads-B) Essay

2377 Words Mar 5th, 2012 10 Pages
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
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Unlike radar, ADS-B data doesn’t degrade with distance or terrain.
ATA strongly supports ADS-B technology, and an accelerated transition to NextGen. ATA consistently has expressed the view that ADS-B is a foundational technology for Next Gen. However, ATA is concerned that the ADS-B NPRM, if implemented as proposed, will not produce tangible benefits to airlines, (and by extension to the traveling and shipping public) but will, on the other hand, commit the aviation industry to enormous costs. [3] Why do we need to adopt ADS-B?
According to FAA, Radar technology dates back to World War II. Radar occasionally has problems discriminating airplanes from migratory birds and rain “clutter.” ADS-B, which receives data directly from transmitters rather than scanning for targets like radars, does not have a problem with clutter.
Radars are also large structures that take up a lot of space, are expensive to deploy and maintain, and require the FAA to lease the land upon which they are situated. ADS-B ground stations take up only 20 square feet, including the perimeter fence. Ground stations are the size of mini-refrigerators. Under the terms of its contract with ITT Corp., the company that is installing the ground stations, the FAA will only pay for ADS-B signals. The equipment will be owned and maintained by ITT. [4]
Adopting ADS-B also affects the Aircraft Avionics. For this, FAA issued a
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