GPS POLICY AND PLANNING

Mr. Joe CannyUS Department of

Transportation

Presented at IISC MeetingDecember, 1999

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Overview

Interagency GPS Executive BoardGPS ModernizationFY00 Budget Impact on ModernizationInternational ConsultationsSpectrum IssuesFederal Radionavigation Plan

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INTERAGENCY GPS EXECUTIVE BOARD

(IGEB) Co-Chairs

- Department of Transportation

- Department of Defense

Participants

- Department of State - Department of Interior

- Department of Commerce - Department of Justice

- Department of Agriculture - NASA

- Joint Chiefs of Staff

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INTERAGENCYGPS EXECUTIVE BOARD

Meeting Aug ‘99Reviewed:

• Options for L5 Signal Implementation• GPS Modernization Alternatives• International Activities• Status of National GPS Plan

Meeting Nov ’99Reviewed

• FY00/01 Budget Impacts on GPS Modernization• International Activities• Status of National GPS Plan

Next Meeting end of Jan ‘00

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GPS MODERNIZATION

Jan ‘99 White House Memo: Defined Additional Civil Signals

• 2nd civil signal at L2• 3rd signal (L5) at 1176.45 Mhz (safety-of-life)

IGEB to resolve technical/funding problems by August ‘99 for implementing L5 IGEB Formed L5 Implementation Steering Group:

Established Working Groups to Assess Technical & Procedural Measures for Sharing• Define Signal• Preserve Military and Civil Operational Capabilities• Minimize total cost to the US Government• International Outreach

Decision Options Presented to IGEB on August 16, 1999 Final Report Submitted October 1999 Follow on work to focus on EMC testing

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FEATURES/BENEFITS OF L5

Available on BLK IIF satellites beginning with Launches in 2005

6 dB stronger signal than L1

20 MHz bandwidth

More robust signal structure than L1

ARNS protected band (only need RNSS allocation)

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FEATURES/BENEFITS OF L5

Provides greater interference mitigation worldwide

Provides greater reliability for safety-of-life applications, including civil aviation worldwide

Allows greater position accuracies for all types of applications, including aviation precision approaches worldwideL5 + L1 will allow avionics in aircraft to correct for ionosphere

induced errorsWill reduce the need for ground infrastructure investments

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FY ‘00 BUDGET IMPACT ON MODERNIZATION

Congressional adjustment of FY00 Transportation budget - no funding for civil GPS modernization

President Clinton Statement that we will identify ways to reduce impact of budget cut

U.S. Remains committed to modernizing GPS and adding new civil signals

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INTERNATIONAL CONSULTATIONS

European UnionResolution to begin Galileo design phase – Jun 99

• Negotiation mandate with US, Russia, others – Oct 996 rounds of consultations – Nov 99 most recent

• Focus on encouraging Galileo to be GPS-like to best serve interests of international user community

• Consistent with a number of basic principles– Seamless, global interoperability – Open Signal Structure– No direct user fees for basic civil and public safety services– Open Market Access

JapanJoint Statement signed in Sept 98Strong Cooperative Relationship DevelopedWorking Groups Met September 99

• Int’l Policy and Public Safety, Transportation Applications, and Commercial and Scientific Use and Development

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PROTECTING SPECTRUM

WRC 2000 GPS ISSUESProtect L1 Band from MSS incursions Urge states to clear L1 Band of footnotes for non-ARNS systemsSpace-to-Space (s-s) Allocation for L1 and L2

• Expands from Space-to-Earth (s-E)to (s-E and s-s). Obtain RNSS Allocation of new GPS Frequency at

L5 = 1176.45 (+/-12 Mhz)

Protect GPS Signals from Interference caused by Other Systemse.g., Ultra Wideband Transmissions, MSS

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FEDERALRADIONAVIGATION PLAN

Now called 1999 Federal Radionavigation Plan Need to address post 1998 decisions Anticipate Publication in early 2000

Current Policy and PlansGPSTransitioning to GPS-based Services

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GLOBAL POSITIONING SYSTEM

Presidential Decision Directive/FRPGPS SPS Available Worldwide Free of Direct

User Charges

Augmented GPS planned to be the Primary U.S. Government operated Radionavigation System for the Foreseeable Future

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TRANSITIONING TOGPS-BASED SERVICES

WAAS/CAT I: Initial Capability September 2000 LAAS/CAT II/III: Date to begin Service uncertain Based on user decisions to transition to SATNAV, as well

as Budget Considerations

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TRANSITIONING TOGPS-BASED SERVICES

Maritime DGPS: FOC Declared on March 15, 1999

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DIFFERENTIAL GPS

COVERAGE IN EUROPE

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TRANSITIONING TOGPS-BASED SERVICES

Nationwide DGPS$5 M Appropriated in FY00

• Establishes 15 new sites

• Bridges the coverage gap in the mid-continent

Nationwide implementation planned by end of 2002

CommunicationsNetwork

Network Connections W ith Other Reference Stations/Broadcast Sites

P seudorange A

P seudorange B

C orrrec tions S en t to U se rs

Broadcast Site andReference StationIntegrity Monitor

Remote Monitoring and Control Station

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PHASEDOWN OF LAND-BASED SYSTEMS

Loran-CApproved Policy on Loran-C Pending

$10.2M Appropriated in FY00 to Maintain Loran-C

Administration Evaluating Long-term Disposition

1999 FRP to be Published Following Loran Decision

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SUMMARY

U.S Remains Committed to GPSSPS Available Free of Direct ChargeGPS Modernization (additional civil signals)Maritime DGPS FOC March 1999WAAS IOC in September 2000Full Nationwide DGPS Service by 2003

Spectrum Protection Critical for Satellite-based Navigation Services

Final Decision on Loran-C PendingPublish 1999 FRP