15 August 2005

Lt Gen Michael HamelCommander

Space and Missile Systems Center

ION GNSS

Plenary Session

26 September 2006

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GPS Enterprise

Department of Transportation•U.S. Coast Guard•Federal Aviation Administration (FAA)

Department of Defense• Services (Army, Navy, AF,

Marines)• Agencies (NGA, DISA, etc.)

Civil Applications• Search and rescue• Surveying and mapping• Trucking and shipping• Aviation• Offshore drilling• Fishing and boating

International Cooperation• Japan – QZSS• Russia - GLONASS• Europe and other countries

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GPS III (Block III)• Increased accuracy • Increased A/J power

(up to 20 dB)• Signal integrity• Search and Rescue• Common signals

with Galileo (L1C)

Legacy (Block IIA/IIR)• Basic GPS• C/A civil signal (L1C/A)• Std Pos. Service• Precise Pos. Service

• L1 & L2 P(Y) nav• NDS

Modernized (Block IIR-M)• 2nd civil signal (L2C)• M-Code signals (L1M, L2M)• Flex A/J power (+7dB)

Space SegmentModernized (Block IIF) •3rd civil signal (L5)

Upgraded (AEP)• IIR-M IIF TT&C• WAGE, AII, LADO• SAASM• New MCS/AMCS

Modernized (OCX V1)• New Architecture• Signal Monitoring

Legacy• TT&C• L1 & L2 monitoring

Control Segment

User SegmentLegacy• Man Pack• MAGR, PLGR• RCVR-3A, 3S • OH, UH• FRPA, CRPA

Upgraded• DAGR• CSEL

• GAS-1• MAGR2K• GB-GRAM

Modernized• MUE• MSR

GPS III (OCX V2)• GPS III TT&C• NAVWAR, GNOC• L1C, L2C, L5• Flex Power• Real-Time C2

GPS Evolution

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• Launched a new era of GPS services – First GPS IIR-M (14) launched 25 Sep 05, operational on 16 Dec 05– New military signal (M-Code) and new civil signal (L2C)– GPS IIR-M (15) launched 25 Sep 06

• Fielded operational improvements– Legacy Accuracy Improvement Initiative--improves accuracy 10-50%– Provide “zero age of data” to warfighters– Continue to mature GPS Ops Center (GPSOC) capabilities

• New acquisition strategies for next generation GPS– GPS III satellites – block development approach– OCX Operational Control Segment – incremental design -development– MUE/MSR – Modernized User Equipment/Modernized Space

Receiver contracts underway/in work• Established new USG interagency GPS governance

processes – National PNT EXCOM (NPEC) and Coordinating Office (NPCO)

Recent Accomplishments

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GPS IIR-15(M)

• Launched Monday, 25 September 2006

– 1450 Eastern time– Cape Canaveral, FL

• Second Modernized Block IIR satellite• Will broadcast

PRN Code 31• Anticipate setting

healthy mid-October

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Plaque on GPS IIR-15(M)

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Continuous Performance Improvement

• Key Measures of Effectiveness help evaluate GPS services- Accuracy - Bounded inaccuracy- Assured Availability - Integrity- Resistance to RF Interference/Jamming

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Current Objective

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• Sustaining capabilities for military and civil users worldwide– Maintain ground systems/on-orbit satellites, launch new satellites –

partnership across AF Space Command– Fielding GPS enhancements, such as L-AII

• Modernizing constellation with new signals and capabilities – Second IIR-M launch Sep 06, first IIF launch 2008, first III launch 2013– New civil and military GPS signals– Transitioning control segment from legacy to new Ops Control

Segment (OCS) in Spring ‘07– Continuing work with Galileo and international community

• Developing next generation of GPS – Acquisition strategies for space, ground, and user segments– Synchronizing space, control, and user equipment upgrades

• Managing GPS systems & supporting stakeholders– Technical baselines, interfaces, performance– Supporting/participating in key fora – NPEC/NPCO, DSB, IRT, ION

GPS Program Responsibilities