FAA’s Implementation Plans for Satellite Navigation Briefed By: Kanwaljit S. Sandhoo (MITRE/CAASD) 8 th European CGSIC/IISC Meeting, Prague December 2 -3, 1999
Overview l Background l SATNAV Program Objectives l Wide Area Augmentation System (WAAS) l Local Area Augmentation System (LAAS) l Summary
Basic GPS Civil Aviation Benefits l Improves Aviation System Safety l Available for Primary Use in the Oceanic Phase of Flight l Available for Supplemental Use for En Route, Terminal, and Non-Precision Phases of Flight l Cost Effective Resource for Nations with Limited Air Navigation Infrastructures l Primary Means Use of GPS can Reduce or Eliminate Maintenance Costs Associated with Older Expensive Ground-based Navigation Aids Available to All Nations, Free of Direct User Charges
Current Navigation Deficiencies l Large Separation Standard Requirements l Lack of accurate Aircraft Position/Navigation Data l Inability to Provide Optimum Routings to all Users l Absence of Instrument Approaches at Qualified Runways l Restrictive Departure Procedures in Poor Visibility l Limited Automated Aircraft Surface Navigation
Basic GPS System Limitations l Integrity — Notification Time: 15 Minutes or Greater l Availability — 70% for 24 satellites — 98% for 21 satellites l Accuracy — Sufficient for En Route through Non- Precision Approach — Not Sufficient for Precision Approach Does not satisfy Civil Aviation Requirements for Primary-means Navigation in all Phases of Flight
Satellite Navigation Program Objective
Wide Area Augmentation System (WAAS) l Safer l Increased Capacity l Cost Effective
WAAS Phase I Status l Hardware Installed and Tested — 25 WAAS Reference Stations (WRS) — 2 WAAS Master Stations (WMS) l Communications Installed and Operational — 2 INMARSAT Satellites (AOR-W and POR) — Terrestrial Communications Network l Software — Software Final Qualification Test Completed — 7 of 8 Design Qualification Tests Completed l Successfully Completed 3 Signal in Space Builds l System Integration Completed
WAAS Phase I Capabilities l Introduces Operational Capability l Non-Precision Approach l Precision approach: WAAS Precision Approach procedures and GPS/WAAS Certified Receivers Will Become Available to the Aviation Community l Increases Quantity of Airfields with Precision approach Capability
WAAS Phase I Schedule l 60 Day Stability Test/DQT l l 1/30/00 Contractor Acceptance Inspection 4/25/00 Joint Resource Council In Service Review (ISR) Decision 6/30/00 Instrument Approaches Published 9/07/00 Commissioning (IOC) 9/25/00
WAAS FOC Investment Analysis Scope: l Congress Wants Sat. Nav Program to be “Most Cost- Beneficial” l Congress Wants FAA to Conduct Lease vs. Buy of WAAS Satellites l FAA Needs to Re-Baseline WAAS and LAAS Programs Approach: l Involve Users, Industry, and Government Agencies l Re-Calculate Benefits/Costs Using Conservative Approach l Focus on Risk Reduction Strategies in Determining Recommendations
WAAS FOC Investment Analysis (Cont’d) l Four Alternatives Developed and Analyzed; Includes Different Levels of Investment in WAAS/LAAS/Navaids l Preferred Alternative Based on Performance, Benefit/Cost (2. 4), Risks, and Strategic Considerations l Checkpoints Built to Minimize Risk and Allow Alternate Paths l Navaids Reduced 2008 -2013 to Basic Backup Network l 4 GEO Satellites to be Acquired Between 2002 and 2008 l Precision Approach Throughout CONUS — Capable of Being the Only Navigation System in an Aircraft l Final Operating Capability (FOC) FY 2006 — Capable of Being the Only Navigation Service Provided by the FAA
Local Area Augmentation System (LAAS) L 1 - 1575. 42 MHz
LAAS Acquisition Schedule 99 01 CAT I Part 171 CAT I Acquisition 03 07 09 11 Assumed by FAA for Maintenance/Liability 18 20 CAT III FSD CAT III Conversion from CAT III New Procurement 05 20 20 7 7 8 8 R&D 26 26 8 8 (Total of 124 CAT I) 26 (Converts 78 CAT I to CAT III) 12 12 12 (Total 0 f 114 CAT III) SUMMARY: 160 Total LAAS - 46 CAT I - 114 CAT III (78 CAT I Conversion + 36 New Procurement)
Summary l On September 2, 1999, the FAA JRC Reinforced the FAA’s Commitment to Satellite-Based Navigation l WAAS and LAAS Baseline Approved l Low-End Users Get Safety and Access l High-End Users Get: — Improved Safety — More Airports and Runways — More Efficiencies in Airspace and Terminal Areas l FAA Gets Modernization of NAS — Improved Safety, Improved Efficiency, and Reduced Cost
FAA GPS Product Team Website l For further information on the FAA’s WAAS Program, please visit our website at: http: //gps. faa. gov
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