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GNSS Aviation Integrity

Global Navigation Satellite Systems (GNSS) for Aviation United Nations International Committee on GNSS 1 - 2 December, 2005 Ken Alexander United States (US) Federal Aviation Administration (FAA). GNSS Aviation Integrity.

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GNSS Aviation Integrity

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  1. Global Navigation Satellite Systems (GNSS) for AviationUnited Nations International Committee on GNSS1 - 2 December, 2005Ken Alexander United States (US)Federal Aviation Administration (FAA)

  2. GNSS Aviation Integrity • Using ICAO GNSS Implementation Strategy and ICAO Standards and Recommended Practices • GPS Aviation Use Approved for Over a Decade • Aircraft Based Augmentation Systems (ABAS) – (e.g. RAIM) • Space Based Augmentation System (SBAS) since 2003 • Wide Area Augmentation System (WAAS) augmenting GPS • Development of GNSS Ground Based Augmentation System (GBAS) Continues • Local Area Augmentation System (LAAS) • GNSS is Cornerstone for National Airspace System

  3. GPS (ABAS) Aviation Receivers • Over 16,000 * Commercial Air Carrier Instrument Flight Rated (IFR) GPS Receivers Sold (as of 2003) • Additional 70,000 – 80,000 * General Aviation IFR GPS receivers sold * U.S. manufacturer sales only (does not include units limited to visual situational awareness)

  4. GPS Aviation Ops Approvals 42 2

  5. Space Based Augmentation System (e.g. WAAS) • Enhanced Navigation for All Phases of Flight • Enroute, Arrival, and Departure: Provides Navigation Services to Users Not Currently Served by Land Based Navigation Aids • Increases Availability of GNSS • Vertically Guided Aircraft Approach: • Enhances Safety by Providing Vertical Guidance • No Ground Hardware Required at Airport • Allows Instrument Operations to All Capable Airports • Supports Every Runway in Coverage Area • Provides Safety of Life Integrity Services today • Use Expanding Globally • SBAS Can Augment Multiple Satellite Navigation System Constellations

  6. SBAS (WAAS) Architecture

  7. SBAS Avionics • Currently Available • Garmin GNS-480/CNX-80 ~ 4000 units sold • In Development • Garmin 430/530 Upgrade – Available Fall 2006 • 50,000 units sold and eligible for upgrade • Free Flight – Available 2006 • Panel Mount Receiver and LPV capable sensor • Avidyne, Chelton, CMC, Universal, Thales, and Honeywell expect to have units available 2006/2007 • Development of Rockwell Collins Unit • Supports high end users, available Nov 2006 • WAAS Upgrade for Challenger 604 (FAA flight inspection aircraft) available June 2007

  8. Ground-Based Augmentation System (GBAS) • U.S. Approach to ICAO Strategy for Interoperable GBAS is Local Area Augmentation System (LAAS) • Provides Navigation Signal to Support Most Demanding Approach Requirements • One LAAS Ground Station Can Cover Entire Airport to Provide Precision Guidance • Approach and Departure Procedures to All Runway Ends • Surface Movement (Taxi operations)

  9. GBAS (LAAS) Architecture

  10. GBAS International Cooperation • International Service Providers Need Precision Approach capability (200 to zero foot Decision Height) • FAA, Airservices Australia, AENA/Spain, and DFS/Germany Have Ongoing Contract Activities • InternationalGBAS Working Group established • With European Service Providers, EUROCONTROL and Industry • Boeing & Airbus Joined in Support of GBAS • Boeing B-737NG Certified With GBAS Avionics • Airbus A-380 to be Certified • International GBAS Development Activities • Airservices Australia Interested in cooperation with FAA to Leverage U.S. GBAS Technology Investments to provide initial ops capability • Germany and Spain Interested in use of resulting product

  11. Benefits: Enhanced Safety Increased Capacity Reduced Delays Increased Flight Efficiencies Increased Schedule Predictability Environmentally Beneficial Procedures Performance-Based Navigation Efficient, Flexible Routing Vector Vector - - Free Free Streamlined Streamlined Arrivals Arrivals Departures Departures All All - - Weather Weather Approaches Approaches

  12. Summary • GPS: Robust and Operating above Standards; Modernized System will Meet Aviation Needs • SBAS: WAAS Commissioned for Instrument Use and Incrementally Adding Capability • Supports Performance Based Airspace Capability • Benefits All Classes of Aviation Users • Enhances Navigation for All Phases of Flight • Receivers Available Today, More Coming Next 3 Years • GBAS (LAAS) • Continuing to investigate Technical Approach • Performance Based Navigation • U.S. Committed to Performance Based Systems Transitions Leveraging Aircraft and Aviation Infrastructure Investments

  13. BACKUPS

  14. http://gps.faa.gov

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