1. Federal Aviation Administration 0 GPS, WAAS, GBAS Overview March 8, 2011 0 GPS Integrity RAIM, WAAS, and GBAS: Concepts and Status Federal Aviation Administration Presentation to: CAAC ATMB March 8, 2011 Presented By: John Warburton FAA Engineering Development Services Navigation Group AJP-652 john.warburton@faa.gov

2. Federal Aviation Administration 1 GPS, WAAS, GBAS Overview March 8, 2011 1 Overview GPS Basics GPS with Receiver Autonomous Integrity Monitoring FAA GPS Augmentation Systems Wide Area Augmentation System Ground Based Augmentation System Summary

3. Federal Aviation Administration 2 GPS, WAAS, GBAS Overview March 8, 2011 2 Global Positioning System Basics Space Segment 24 Satellites 6 Orbital Planes 4 Satellites per Plane SVs Orbit at approximately 20 million meters above the earth Each SV Orbits the earth twice a day Ground Control Segment Master Control Station, Colorado Springs Monitor Stations; Hawaii, Ascension Island, Diego Garcia, and Kwajalein

4. Federal Aviation Administration 3 GPS, WAAS, GBAS Overview March 8, 2011 3 Non-Augmented GPS Operations 10-20 Meters SA Off Atmospheric Errors, Atmospheric Errors, Ephemeris Errors, Multipath Ephemeris Errors, Multipath Protection Level=?

5. Federal Aviation Administration 4 GPS, WAAS, GBAS Overview March 8, 2011 4 GPS Operations and RAIM Receiver Autonomous Integrity Monitoring (RAIM) provides GPS solution integrity without additional augmentation RAIM functions include Fault Detection (FD) and Fault Detection and Exclusion (FDE) Fault detection algorithms determine if there is an error in the GPS solution Fault detection and exclusion algorithms determine if there is an error in the solution and can isolate and exclude satellites from the solution

6. Federal Aviation Administration 5 GPS, WAAS, GBAS Overview March 8, 2011 5 RAIM Information RAIM Prediction Link http://www.raimprediction.net/ac90-100/

7. Federal Aviation Administration 6 GPS, WAAS, GBAS Overview March 8, 2011 6 Satellite Navigation WAAS / LAAS Implementation Space-Based Augmentation System (SBAS) Ground-Based Augmentation System (GBAS)

8. Federal Aviation Administration 7 GPS, WAAS, GBAS Overview March 8, 2011 7 Reference Station Reference Station Reference Station Reference Station Master Station Uplink Station How WAAS Works

9. Federal Aviation Administration 8 GPS, WAAS, GBAS Overview March 8, 2011 8 WAAS Status Continuing to make pre planned upgrades/enhancements to the system New GEO satellite (AMR, PRN 133) added to the system in November 2009 CRW (PRN 135) GEO Satellite operator, Intelsat, lost all command and control of satellite in April 2010 WAAS L-band payload continued to operate Satellite drifted east Original location was 133 degrees west longitude Intelsat was able to regain command and control in December 2010 Satellite now returning to its original location It is ready to return to service

10. Federal Aviation Administration 9 GPS, WAAS, GBAS Overview March 8, 2011 9 WAAS Status – User Services LNAV Procedures: LNAV 4976 GPS Only 400 LPV procedure status: Cumulative LPVs Published to Date2367 LPVs Published to non-ILS Runways1470 LPVs Published to ILS Runways 897 LPVs Published to <250’ Decision Altitude 433 LPVs Published to exactly 200’ DA 422 First LP procedure published 1/13/11 Peter O Knight, Tampa FL runway 36 Over 61,206 WAAS receivers have been sold

11. Federal Aviation Administration 10 GPS, WAAS, GBAS Overview March 8, 2011 10 WAAS Test Team Page http://www.nstb.tc.faa.gov/

12. Federal Aviation Administration 11 GPS, WAAS, GBAS Overview March 8, 2011 11 How GBAS Works Protection Level=10 m CAT I 4 Meter Accuracy Category I Category I Ground Processor Ground Data Radio Data Link Radio

13. Federal Aviation Administration 12 GPS, WAAS, GBAS Overview March 8, 2011 12 Ground Based Augmentation System Service Provides Precision Approach Capability, CAT I/II/III Service. Performance equivalent to existing Instrument Flight Rules (IFR) radionavigation landing aids. Complements the Wide Area Augmentation System (WAAS) Provides CAT I where WAAS is not available. Uses WAAS integrity information when in coverage of a WAAS GEO. Requirements were coordinated internationally to support harmonization efforts. CAT I/II/III Architectures Have Common Baseline Configuration and are fully interoperable.

14. Federal Aviation Administration 13 GPS, WAAS, GBAS Overview March 8, 2011 13 GBAS CAT I Approval Status Full Category I Non-Federal GBAS system design approval was completed in September 2009. Honeywell SLS-4000 is the first approved GBAS. SLS-4000 was installed at the FAA Technical Center in September 2008 Being used as a platform to support FAA review of Honeywell design artifacts, Integrity Monitor Verification, and a CAT III development system Hazardously Misleading Information (HMI) Report was completed December 2008 Fully describes the integrity safety case for the SLS-4000 SLS-4000 was installed at Newark Liberty International Airport (EWR) in November 2009 FAA is working to resolve environmental interference at EWR

15. Federal Aviation Administration 14 GPS, WAAS, GBAS Overview March 8, 2011 14 GBAS CAT II/III Status Requirements Development and Validation Acquisition Documentation to support a Federal Procurement of GBAS CAT III Investment Analysis and other Acquisition Management System (AMS) required documentation Requirements Validation - ICAO standards Technical validation of proposed CAT III standards completed May 2010 Operational Validation via prototypes Prototype Development CAT III GBAS Ground Facility (Honeywell) Perform analysis on the existing Honeywell SLS-4000 algorithms to validate ICAO Annex 10 and LAAS CAT III Federal Specification requirements POP: May 2010 - Nov 2012 CAT III GBAS Avionics (Honeywell) Produce red-label Airborne Equipment Class (AEC) D avionics to validate MOPS compliance POP: August 2010 to February 2013

16. Federal Aviation Administration 15 GPS, WAAS, GBAS Overview March 8, 2011 15 GBAS CAT II/III Schedule (Source Navigation Services AJW-91, 2/2011) FY09101112131415161718192021222324 CAT III Standards MOPS RD/CONOPS SPEC CAT III Prototype Ground CAT III Prototype Avionics AMS (Acq. Prep) Development/ implementation MOPS GND prototype CONOPS/RD Spec Avionics Prototype Development Production / Implementation Completed / started Planned IARD IID FID Contract AwardIOC

17. Federal Aviation Administration 16 GPS, WAAS, GBAS Overview March 8, 2011 16 GBAS Operational Projects Project Newark Partnership Participants: The Port Authority of New York and New Jersey (PANYNJ), Continental Airlines, Honeywell and FAA Navigation Service’s Global Navigation Satellite Systems (GNSS) Program Office. A GBAS was installed at Newark Airport to: Demonstrate the improved performance and precision and interoperability with other GNSS capabilities. Provide data to support FAA decisions on ground equipage and airline decisions on avionics.

18. Federal Aviation Administration 17 GPS, WAAS, GBAS Overview March 8, 2011 17 GBAS Operational Projects Project Houston Partnership Participants: Houston Airport System (HAS), Continental Airlines, Honeywell, and FAA Navigation Service’s Global Navigation Satellite Systems (GNSS) Program Office. A GBAS will be installed at Houston Intercontinental Airport (IAH) to: Provide an effective city pair to support Continental equipage development Continental taking delivery of GBAS capable 737NG (30 total by February)

19. Federal Aviation Administration 18 GPS, WAAS, GBAS Overview March 8, 2011 18 Navigation Team GBAS Page http://laas.tc.faa.gov/ http://laas.tc.faa.gov/

20. Federal Aviation Administration 19 GPS, WAAS, GBAS Overview March 8, 2011 19 Summary Discussion of GPS, RAIM, WAAS, and LAAS High-level concepts and overview Provided links for additional information Contact Information at the FAA Technical Center Navigation Engineering Development Services John Warburton (609) 485 6782 john.warburton@faa.gov Navigation Test and Evaluation Services Bill Wanner (609) 485 5514 bill.wanner@faa.gov