FAA Centers of Excellence for General Aviation Research

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FAA Centers of Excellencefor General Aviation
Research
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ADS-BPotential Impact Benefits forGeneral
Aviation
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What is ADS-B ?

• Always ON No operator attention is required
• It relies on very accurate GPS position data
• Provides aircraft position, altitude, speed,
  heading ,
• Identification and other data
• Data is broadcast to any aircraft or ground
  station
• equipped to receive the signal.

Automatic Dependent Surveillance Broadcast
ADS-B
Traffic information Flight information
Radar Data
ATC Surveillance Radar
ATC System
Ground Receiver
ADS-B Data
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What is ADS-B ?What makes it work?

• GPS
• WAAS
• LINKS
• 1090
• UAT
• GBT

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What is GPS ?

• G Global
• P Positioning
• S System

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What is WAAS?
Wide Area Augmentation System

• WAAS consists of
• reference stations
• master stations
• geosynchronous satellites
• uplink stations
• WAAS augments the GPS constellation to meet the
  necessary integrity, availability, accuracy, and
  continuity for use in all phases of flight

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What are the LINKS?
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What is 1090 ES?

• In 2002, the FAA has announced a dual link
  decision using 1090 MHz ES and UAT as mediums for
  the ADS-B system in the United States.
• The 1090 MHz extended squitter ADS-B link for air
  carrier and private/commercial operators of high
  performance aircraft.

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What is UAT?

• U Universal
• A Access
• T Transceiver
• UAT system was specifically designed for ADS-B
  operation.
• UAT uses 978 MHz
• UAT users have access to ground-based
  aeronautical data and can receive reports from
  proximate traffic (FIS-B and TIS-B).

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What is a GBT?

• G Ground
• B Based
• T Transmitter

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Why ADS-B?

• Greater Capacity
• Improved Efficiency
• Safety Improvements
• Traffic
• Terrain
• Weather

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ADS-BPart of NextGen
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