US ADSB Plans

1
U.S. Plans for ADS-B
Briefing for Seminar on Implementation of Data
Link and SATCOM Communications 17-19 November
2003 Bangkok, Thailand
Rob Strain MITRE CAASD on behalf of Federal
Aviation Administration
2
ADS-B Technology

• FAA Link Decision has selected two ADS-B
  technologies for use in the NAS 1090 ES and UAT
• Due to availability of ICAO standards, 1090 ES
  was selected as the link for near term
  applications for users requiring international
  interoperability (e.g. air carrier).
• UAT selected for its lower cost and additional
  capability benefits (FIS uplink broadcast) for
  other classes of users (e.g. general aviation).
• UAT is a candidate ADS-B link for all users for
  any future ADS-B applications which cannot be
  supported from a performance perspective by 1090
  ES.

3
Status of 1090 ES

• RTCA MOPS (DO-260/Sept 2000 DO-260A/April 2003)
• DO-260A adds conformance with updated ADS-B
  MASPS, adds new receiver performance
  requirements, and supports TIS-B
• ICAO SARPS
• SARPs exist for DO-260 and are currently being
  updated to encompass DO-260A
• Boeing and Airbus are installing 1090 ES ADS-B
  broadcast capability on their new aircraft
• Approximately 500 U.S aircraft are equipped today
  for broadcast-only (DO-260).

4
Status of 1090 ES (2)

• ANC 11 Recommendation 7/1

• Strategy for the near-term introduction of ADS-B
• That States
• note that a common element in most of the
  approaches currently adopted for early
  implementation of ADS-B is the selection of the
  SSR Mode S extended squitter as the initial data
  link and
• take into account this common element to the
  extent possible in their national and regional
  implementation choices in order to facilitate
  global interoperability for the initial
  introduction of ADS-B.

5
Status of UAT

• RTCA MOPS (DO-282/August 2003)
• ICAO SARPS
• ACP WG-C formally assigned the task
• Draft core SARPs and Technical Manual approved by
  WG-C for entering validation phase
• Annex 10 publication targeted 2007
• FAA has equipped 200 aircraft in Western Alaska
  as part of Capstone program. Plans for 200
  additional aircraft installations beginning 2004
• Commitment by Embry Riddle University for about
  100 installations on training aircraft during
  2004

6
Plans for Ground Infrastructure (1)

• Implementation planned for certain early pockets
  of coverage (2003 - 2007)
• Alaska currently operating 10 ground stations
  (UAT initially)
• Supporting ATC radar-like services
• East Coast (New Jersey to Florida) (UAT
  initially)
• Prescott Arizona in cooperation with Emery Riddle
  University (UAT initially)
• Functional and performance requirements currently
  being developed for 1090 ES ground stations.

7
Plans for Ground Infrastructure (2)

• The FAA is currently developing plans for a
  longer-term national ADS-B ground infrastructure
  (2008 2015)
• Longer term plan is to provide air-ground
  coverage equivalent to current national SSR
  coverage plus certain additional gap-filler
  sites
• Dual link (1090ES UAT) ground stations with
  capability to re-broadcast on the alternate link
  to provide dual link interoperability
• TIS-B will be provided to support airborne
  applications (e.g., CDTI) prior to full equipage
  with ADS-B
• Support provision of radar-like services via
  ADS-B