Space-Based PNT Policy Update

Space-Based PNTPolicy Update

JSDE/ION Joint Navigation ConferenceJune 8, 2010

Lt Col Scott L. BoushellSenior Advisor

Introduction

• During the past decade, GPS has grown into a global utility providing space-based positioning, navigation and timing (PNT)– Consistent, predictable, dependable policy and

performance

– Augmentations improve performance

• Like the internet, GPS is a critical component of the global information infrastructure– Scalable applications enabling broad new capabilities

– Innovations in efficiency, safety, environmental protection, public security and science

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U.S. Space-Based PNT Policy History

1978: First GPS satellite launched

1983: President offered free civilian access to GPS

1996: Established joint civil/military GPS management

1997: Congress passed law providing civil GPS access free of direct user fees

2000: President set Selective Availability to “Zero”

2004: President issued U.S. Policy on Space-Based PNT

2007: President announced elimination of Selective Availability capability from future GPS III satellites

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U.S. Space-Based PNT Policy

GOAL: Ensure the U.S. maintains space-based PNT services, augmentation, back-up, and service denial capabilities that…

ASSURE SERVICE Provide uninterrupted availability of PNT services

MEET DEMANDSMeet growing national, homeland, economic security, and civil requirements, and scientific and commercial demands

LEAD MILITARILY Remain the pre-eminent military space-based PNT service

STAY COMPETITIVEContinue to provide civil services that exceed or are competitive with foreign civil space-based PNT services and augmentation systems

INTEGRATE GLOBALLY Remain essential components of internationally accepted PNT services

LEAD TECHNICALLYPromote U.S. technological leadership in applications involving space-based PNT services

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U.S. Space-Based PNT Policy

• Recognizes the changing international scene– Other nations are implementing space-based

systems that provide PNT services

• Established National Space-Based PNT Executive Committee (EXCOM)– Chaired by Deputy Secretaries of Defense and

Transportation– Membership includes: State, Interior,

Agriculture, Commerce, Homeland Security, Joint Chiefs of Staff, and NASA

• Established National Coordination Office (NCO) with staff from each member department/agency

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U.S. Space-Based PNT Organization Structure

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WHITE HOUSEWHITE HOUSE

ADVISORY BOARD

Sponsor: NASA

ADVISORY BOARD

Sponsor: NASA

NATIONALEXECUTIVE COMMITTEEFOR SPACE-BASED PNT

Executive Steering Group

Co-Chairs: Defense, Transportation

NATIONALEXECUTIVE COMMITTEEFOR SPACE-BASED PNT

Executive Steering Group

Co-Chairs: Defense, Transportation

NATIONAL COORDINATION OFFICE

Host: Commerce

NATIONAL COORDINATION OFFICE

Host: Commerce

GPS International Working Group

Chair: State

GPS International Working Group

Chair: State

Engineering Forum

Co-Chairs: Defense, Transportation

Engineering Forum

Co-Chairs: Defense, Transportation

Ad HocWorking Groups

Ad HocWorking Groups

DefenseDefense

TransportationTransportation

StateState

InteriorInterior

AgricultureAgriculture

CommerceCommerce

Homeland SecurityHomeland Security

Joint Chiefs of StaffJoint Chiefs of Staff

NASANASA

Key Executive Committee Activities

• National Space-Based PNT Five-Year Plan– Summarizes EXCOM agency planning for development,

acquisition, sustainment and modernization of U.S. space-based PNT systems

• Interference Detection and Mitigation (IDM) Plan– Department of Homeland Security coordinating U.S.

capabilities to detect and mitigate sources of interference to GPS and it augmentations

• National PNT Architecture– Provides national PNT framework/investment strategy

to help guide future PNT system-of-system investment• International Cooperation and Consultation

– Promotes compatibility and interoperability with other foreign systems

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Eleven EXCOM meetings since 2006Eleven EXCOM meetings since 2006

Existing and Future GNSS

• Global Constellations– GPS (U.S.) – Galileo (EU) *– GLONASS (Russia) – Compass (China)

*

– GINS (India) *

• Satellite-Based Augmentations– WAAS (U.S.) – GAGAN (India) *– EGNOS (EU) – SDCM (Russia) *– MSAS (Japan)

• Regional Constellations– QZSS (Japan) * – IRNSS (India) *

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*– Future Systems

U.S. Objectives with Other GNSS Service Providers

• Ensure compatibility – ability of U.S. and non-U.S. space-based PNT services to be used separately or together without interfering with each individual service or signal– Radio frequency compatibility– Spectral separation between M-code and other signals

• Achieve interoperability – ability of civil U.S. and non-U.S. space-based PNT services to be used together to provide the same user better capabilities than would be achieved by relying solely on one service or signal– Primary focus on the common L1C and L5 signals

• Ensure a level playing field in the global marketplace– Transparency for open services

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Pursue through Bi-lateral and Multi-lateral Cooperation

Pursue through Bi-lateral and Multi-lateral Cooperation

Challenges

• Strategic Communications– Improving National Communications mechanism

• Closer NCO collaboration with USAF/AFSPC/GPSW on message

– Pursuing more effective global information campaign

• Transition from defensive to offensive strategy

• Education and Outreach– Smithsonian Time & Navigation Exhibit– GPS Adventures– GNSS Regional Education Centers

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GPS is still the gold standard…and will be for the foreseeable future.

GPS is still the gold standard…and will be for the foreseeable future.

Summary

• U.S. Space-based PNT efforts progressing well in policy, programs and international outreach– Implementation of 2004 U.S. Policy proceeding

well– U.S. space-based PNT system performance

continues to improve into the future– International cooperation is a priority

• Actively engaged in bi-lateral and multi-lateral consultations

– New GNSS applications emerging– Must synchronize the strategic message

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As new space-based GNSSs emerge, compatibility and interoperability are keys

to “success for all”

As new space-based GNSSs emerge, compatibility and interoperability are keys

to “success for all”

For Additional Information…

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GPS.gov PNT.gov

Lt Col Scott L. Boushell

National Coordination Office for Space-Based PNT1401 Constitution Ave, NW, Room 6822

Washington, DC 20230

Phone: (202) 482-6726 (202) 482-5809

[email protected]

BACKUPS

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Web Resources

• GPS.gov established for public information about GPS applications– Available in English, Spanish, Arabic and Chinese– Brochures also available in hardcopy upon request– Links to various other Web sites

• PNT.gov established to provide a source of information about U.S. Space-Based PNT Program including:– U.S. Policy; EXCOM membership; Advisory Board;

FAQs– Announcements about Selective Availability and

offer letter to International Civil Aviation Organization (ICAO)

– Recent public presentations

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