Department of Defense: Stewards of the GPS Program

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Department of DefenseStewards of the GPS Program

• DoD in general, and Air Force specifically,
  chartered with acquisition and operations of GPS
• Civil perspectives are key to the management of
  the system
• Deputy for civil matters present at the JPO
• Civil representative present at AFSPC HQ
• Interagency GPS Executive Board (IGEB) charts the
  course for future GPS activities, to include
  augmentations
• Advantage of current management structure
  Everyone is involved
• Civil/commercial interests have a role in future
  GPS activities (Requirements, Acquisition,
  Operations)
• Implications
• Slow decision making process

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GPS Management
Interagency GPS Executive Board (IGEB) Charter
Senior-level manages GPS US Augmentations,
consistent w/ National Policy Protect national
security and foreign policy interests Focus on
dual use aspects
IGEB
DoD Positioning, Navigation, and Timing (PNT)
Exec Committee (DoD POS/NAV Ex Com) Charter
Primary advisory body to ASD/C3I on DoD
Position, Navigation Timing (PNT) Matters
Primarily used as a staffing mechanism for DoD
coordination
U/S Trans (Policy)
ASD(NII)
IGEB Senior Steering Group (SSG) Charter O-6
advisory body to IGEB Co-chaired by DoD and DOT
JCS DOT DOC
DOS DOI DOA
DOJ NASA
Executive Secretariat
SSG
DOT/Extended POS/NAV Executive Committee
Charter Primary advisory body to DOT on civil
PNT matters
PNT Working Group (WG) Charter O-6 level
subordinate group to Ex Com
DOT POS/NAV WG
Extended POS/NAV WG
Extended and DOT POS/NAV WGs Charter Provide
broad civil input on PNT matters that extend
beyond just transportation
Acquisition Process
USecAF
Interagency Requirements Process
AFSPC/CC
Defense Space Acquisition Board (DSAB) DAB
Equivalent
Civil Agency Participation Invited Broad
Consensus on Civil Issues
Independent Assessment Team (IAT) Charter Senior
level independent group providing policy
assessments on GPS US Augmentations to IGEB
co-chairs
Independent Program Assessment (IPA) Team Single,
focused Activity that takes place of IPT process
Independent Review Team (IRT) Charter Senior
level independent group providing technical
assessments on GPS US Augmentations to AFSPC/CC
KEY
DoD Only
Interagency
Independent Advisory Bodies
Civil Only
Independent
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GPS InvestmentPast, Present and Future
GPS FY04 Presidents Budget Profile (User
Equipment and OM not included)
TY M
4
GPSModernization Plan
Increasing System Capabilities w Increasing
Defense/ Civil Benefit
Block III
Block IIR-M, IIF

• GPS III
• Navigation Surety
• Increased Accuracy
• Assured Availability
• Controlled Integrity
• System Survivability

Block IIA/IIR

• IIR-M IIA/IIR capabilities plus
• 2nd Civil Signal on L2 (L2C)
• Earth coverage M-Codeon L1 L2
• IIF IIR-M capability plus
• 3rd Civil Signal on L5

• Basic GPS
• Std Service (16-24m SEP)
• Single frequency (L1)
• C/A code navigation
• Precise Service (16m SEP)
• Two frequencies (L1L2)
• P-code navigation

Flex Power upgrade adds ability to increase power
on both P and M-Code signals to defeat low level
enemy jamming