Global Positioning System (GPS) III Requirements Process

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Global Positioning System (GPS) III Requirements
Process

• 27 Mar 08

Lt Col Martin HQ AFSPC/A5P
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Overview

• What was the process that got us here?
• How does it all work?
• What are the current requirements?
• How do we go forward on GPS III?

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What was the process that got us here?

• The Interagency Requirements Process
• Civilian and Military agencies are Part of It
• We are in this together to make GPS better

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Interagency Requirements Process
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Example Geodetic Requirement

• Interagency Study Group (NASA, NOAA, NGA, NRL,
  USNO, USGS) defined GPS III Geodetic Requirement
• Completed AoA pointing to laser ranging of GPS as
  optimal solution
• Requirement and AoA submitted to IFOR Apr 07
• Support letters from NASA and NGA submitted to
  IFOR Jul 07
• Geodetic requirement accepted by IFOR 20 Aug 07
• GPS Wing tasked with identifying
  costs/risk/impacts by 1 Jun 08
• EXCOM tasked NASA/Air Force (20 Mar 08) to
  complete compatibility assessment of laser
  reflectors on GPS by 30 Sep 08
• Pending assessment, Geodetic requirement added to
  GPS III CDD for Increment B

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GPS III Capabilities Development

• 2000Operational Requirements Document (ORD)
• 2000 Navigation Warfare Analysis of Alternatives
  (Navwar AoA)
• 2005Joint Requirements Oversight Council (JROC)
  approved initial Capability Development Document
  (iCDD)
• Validated GPS III Key Performance Parameters
  (KPP) for single increment
• JROC approved US Nuclear Detonation Detection
  System (USNDS) as payload
• 2006JROC approved iCDD addendum
• Low risk, time-certain Incremental approach (A,
  B, and C)
• 2007JROC approved CDD for Increments A, B, and C
• Validated requirements for GPS Block III A
  satellites and Next Generation Control Segment
  (OCX) Increments I and II
• Future JCIDS Documents
• CDDs updated prior to all KDPs for each
  Increment CPD prior to each build approval
• Next CDD update for Increment A KDP-C (2009)

GPS III requirements process ensures military and
civil requirements properly addressed
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How Does it All Work?

• All new GPS III requirements were approved by the
  Interagency Forum for Operational Requirements
  (IFOR)
• All requirements included justification and
  rationale
• Feasibility, affordability, and best value to
  government key considerations for approval
• GPS Wing provides additional cost/benefit
  analysis
• Civil requirements should be approved by IFOR
  prior to commencement of High Performance Team
  (HPT)
• Unresolved IFOR issues raised to Interagency
  Review Board (IRB) for adjudication or to the
  Interagency Requirements Oversight Council (IROC)
  if not resolved by the IRB

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Requirements Development/Adjudication

• High Performance Team (HPT) includes civil reps,
  initially merges requirements for CDD
• Based on higher level documents (JCD, ICD,
  CONOPS, etc)
• Incorporates civil requirements approved via IFOR
• Civil requirements require appropriate-level
  approval from within agency
• Requirements included in CDD based on cost, risk,
  and operational utility
• Recommends threshold and objective values and
  KPPs based on inputs from requesting
  agency/service
• All performance values require rationale from
  submitter
• CDD coordinated through DoD (AFROCC, FCB, JCB,
  and JROC) and civil agencies (Ext. DOT Pos/Nav
  W/G EXCOM)
• Unresolved policy related issues can be elevated
  to EXCOM for resolution

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What are the Current Requirements?

• Selected GPS III A Requirements for the
  Interagency
• Backward Compatibility
• GPS III works with legacy receivers
• Availability of Position Accuracy
• Supports military ops, transportation industry,
  aviation, surveying
• Position and Time Integrity
• Essential for safety-of-life applications
• Time Transfer Accuracy
• Essential for time-synchronization of numerous
  military and civil systems
• GPS/Galileo Interoperability (L1C)
• International agreements require commonality with
  Galileo/GLONASS and regional augmentation systems
• Signal Monitoring
• Supports safety-of-life applications

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Notional GPS III CDD Timeline for KDP-C (Jul 09)
How Do We Go forward on GPS III?

• Aug 08 Requirement Strategy Review
• Aug 08 IFOR
• Sept 08 High Performance Team (HPT)
• Dec 08 AFROCC
• Jan 09 Functional Capabilities Board
• Jan 09 Joint Capabilities Board
• Feb 09 JROC

Civil Agencies Welcome at Each Event
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Requirements Process Improvements

• AFSPC reorganization designates a single O-6
  Command Lead for each capability
• PNT Capability Team facilitates, coordinates, and
  synchronizes PNT Issues
• Improves/restores ability to execute strategic
  level mission activities
• Pro-active cross-functional integration
• Recognized AFSPC focal point
• Single HQ AFSPC POC for customers, suppliers,
  mission partners, and HHQ
• Facilitator, coordinator, synchronizer not a
  management layer

DOT Liaison at AFSPC coordinates input of civil
requirements