GPS Modernization - Stanford University€¦ · Back-to-Basics Investments •Extensive flight-like engineering models drove out issues early –30-70% reductions in discrepancies,

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GPS Modernization: GPS III On the Road to the Future

Dr. Keoki Jackson

Vice President, Navigation Systems

Space Systems Company

Stanford PNT Symposium

November 13-14, 2012

© 2012 Lockheed Martin Corporation. All Rights Reserved.

2 © 2012 Lockheed Martin Corporation. All Rights Reserved. © 2012 Lockheed Martin Corporation. All Rights Reserved. 2

3 © 2012 Lockheed Martin Corporation. All Rights Reserved. © 2012 Lockheed Martin Corporation. All Rights Reserved.

GPS III Summary

• On track to deliver first vehicle on schedule in 2014

• Back-to-Basics up front investments are reducing risks

early and demonstrating results

• GPS III Non-Flight Satellite Testbed (GNST) integrated

and SV01 products delivering

• Program has affordable, low-risk capability on-ramps: on

track for dual launch starting with SV09

• Launch & Checkout Capability supports 2015 launch

• GPS III delivers needed capabilities beyond Block II:

Increased M-code power, improved accuracy, L1C signal,

extended life

Executing to deliver on schedule in May 2014

4 © 2012 Lockheed Martin Corporation. All Rights Reserved.

Rockwell

Block I

Boeing (Rockwell)

Block II/IIA

Lockheed

Martin

Block IIR

Lockheed

Martin

Block IIR-M

Boeing

Block IIF

Lockheed

Martin

Block III

• L1 (CA) Navigation signal

• L1 & L2 (P Code) Navigation signal

• 5 Year Design Life

• Std Service • Single Frequency (L1) • C/A code navigation • Precise Service • Two frequencies (L1 & L2) • P (Y) -Code navigation • 7.5 Year Design Life • Reprogrammable Nav. Processor on

Block IIR

Demonstration system

Basic GPS Provides Initial Navigation Capabilities

IIA/IIR Capabilities “Plus”

• 2nd Civil Signal L2 (L2C) • Earth Coverage M-Code on L1/L2 • L5 Demo • Anti-Jam Flex Power • 7.5 Year Design Life

IIR -M Capabilities “Plus”

• 3rd Civil Signal L5 • Increased Accuracy requirement • 12 Year Design Life

IIF Capabilities “Plus”

• Increased accuracy • Increased M-code

Earth Coverage power

• 4th Civil Signal (L1C) • Increased Integrity • 15 Year Design Life • Dual Launch-able

1978 - 1985 1989 – 1997 1997- 2004 2005 - 2009 2010 - Present 2014 - 2024

11 (10) Satellites 28 Satellites 13 (12) Satellites 8 Satellites 12 Satellites Up to 32 Satellites

GPS Evolution -Space Segment

Evolution has increased Space System capabilities and user benefits

Signal Power

Accuracy

10x

4x

3x 1x

1x


Modernization - GPS III Program

• Next Generation GPS – Improved performance for both

military and civilian users

– Superior system security,

accuracy, and reliability

• Strategic Teammates – U.S. Air Force

– Lockheed Martin Space

Systems Company

– ITT Exelis Corporation

– General Dynamics

– Honeywell

• Heritage of Success – GPS IIR/IIR-M success

– Time-tested A2100 bus

http://www.lockheedmartin.com/data/assets/ssc/gpsIII.jpg


GPS III Capability Comparison Area Attributes GPS II GPS III

Bus Modern scalable bus No Yes

Navigation Signals

L1 / L2: C/A, P(Y), M-code; L2C Yes Yes

L5: I, Q Yes Yes

L1C No Yes

Flexibility: additional codes / frequencies No (SMI)

Integrity GPS III Integrity Monitoring No Partial

Anti-Jam

GPS IIR-M / IIF Flexible power No Yes

Increased M-code power (3x-8x) No Yes

Spot Beam No (SMI)

Network Comm

S-Band Up / Down links Yes Yes

USB Up / Down links No (SMI)

UHF Crosslinks Yes Yes

Crosslink network for on-demand Command/Control No (SMI)

Range Error Less than 1 meter (4x improvement) No Yes

Other

Dual Launch capable (vs. Direct Inject) No Yes

NuDet Detection System (NDS) Yes Yes

Compatibility with modernized NDS No (SMI)

Space Modernization Initiative (SMI) No Yes

Increased Security / Information Assurance No Yes


GPS III Program Plan

SV01 Integration Underway Following Successful GNST Pathfinding

7

Calendar Year

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

GPS III SV01 - SV02

GNST

SV01 & SV02 DELIVERY

Production SV Options

2014 2015 2016 2008 2009 2010 2011 2012 2013

Eng Development Unit (EDU) Deliveries

Qualification Unit Deliveries

SV01 Flight Unit Deliveries

GPS Satellite

Simulator PDR

Critical Design Review ATP

5/08 IBR

5/09 6/08 8/10

Long Lead (LL) 3-4

Today

Development

SV01 PSR

SV02 PSR

Comm Units Delivery

Nav Panel Delivery

Ship L+ To Denver

Ship To Cape

SV01 Nav Pnl Delivery

SV01 Comm & Propulsion Core Delivery

SV02 Nav Pnl Delivery

SV02 Comm Units Delivery

12/10

LL7-8

LL5-6 Production

(PR) 3-4 PR5-6 PR7-8

SV01 Avail For Launch

SV02 Avail For Launch

Development GPS III SV09+

LCC Qual

dSRR dSDR dPDR

SV09+ dCDR

dPDR

BL

Schedule Margin 6 months (33%) Margin to SV01 Available for Launch Milestone

Legend ATP – Authority to Proceed

IBR – Interim Business Review

LCC – Launch and Checkout

Capability

PDR – Preliminary Design

Review


GPS III Recent Highlights

8

GNST in Dynamics Pathfinding GNST Navigation Payload Shipped

SV01 Propulsion Subsystem Delivered SV01 L-Assembly


GPS Processing Facility (GPF), Denver

TVAC Chamber

Anechoic Chamber

GPF High Bay


Shipped to GPF

Full Nav Payload in test

Antenna qual test complete

Nav Payload Interface testing complete (NPE-Lite)

Early panel shock test

Core Mate

Antenna Panel installation

Mass properties & modal survey

Acoustic pathfinding

Nav Payload TVAC & Delivery Nov 2012

Nav Payload Integration Dec 2012

Ship to Cape Canaveral Apr 2013

GNST Integration & Test Pathfinding Progressing in GPF Ahead of SV01

GPS Non-Flight Testbed (GNST)

10

GNST Core Mate in GPF (Denver)

Transport to Modal & Acoustic

Spin Test


Virtual Production Pathfinding

Error-Proofing in the Collaborative Human Immersive Lab (CHIL) 11

Work cell simulation

• Cycle times reduced 25% or

more

• Integration sequences, tooling

and ergonomics validated or

revised

Factory Layout and Flow

• Distance traveled: 62%

reduction

• Lifts: 56% reduction

• Cycle time: 39% reduction Preliminary Notional Factory Floor

Discrete Event Simulation

System Module – Core Mate


GPS III Space Vehicle 01 Core Structure

delivered

Integration commenced in GPF

Comm subsystem hardware

Launch Exercise #1

Propulsion subsystem delivered

System Module Initial Power On in Nov 2012

Nav Payload Mar 2013

SV01 Initial Integration in GPF

Initial Integration of SV01 Started – Propulsion System Delivered

SV01 Propulsion Subsystem, Stennis, MS

Launch Exercise #1

12


Back-to-Basics Investments • Extensive flight-like engineering

models drove out issues early – 30-70% reductions in discrepancies,

manufacturing hours, cycle time

• GNST pathfinding all SV01 activities and test products a year ahead of SV01

• Early Software Integration identifying, resolving issues before SV testing

• Rigorous traceability and systems engineering enabling requirements verification ahead of typical programs

Back-to-Basics Investments Demonstrating Returns

AI&T Procedure Cycle Time:

70% Reduction from GNST to SV01

Comm Box Build Time (hrs):

62% reduction from Qual to SV01


SV01 Launch and Checkout

LM Newtown facility complete

Launch & Checkout Capability (LCC) hardware, initial software installed

Exercise 1 complete – Aug 23, 2012

• Supports SV01 May 2015 Launch & On-Orbit Test

• Incorporates Raytheon OCX Launch & Checkout System (LCS)

LCC/LCS Enables SV01 Launch in 2015

Launch Exercise #1

Team in LCC

14


Dual Launch and Capability/Affordability Insertion

• Dual Launch feasible, added to SV09+ baseline

Joint study with ULA completed Nov 2011

ULA estimates $0.7 – 1.5B savings in launch costs

Study to achieve System Requirements Review maturity

• Other Key Capabilities added on GPS III SV09+

– NDS upgrades, affordability modifications

– Unified S-Band (USB)

– Flexible Digital Waveform Generation

– Search/Rescue Payload (SAR-GPS) and Laser Retro-reflector

Array (LRA)

SAR/GPS

UHF Rx

Antenna

Dual Launch

Stack on Atlas V

SV09+ delta-PDR on Track for Feb 2013


Conclusion

• GPS III Brings New Capabilities – Higher Power

– Greater Accuracy

– Additional Signals

• On-Ramps for Additional Capabilities at SV09 – Dual launch

– Search and Rescue payload

– Flexible signal generator payload

• On Track for SV01 Delivery and Launch – GNST in test

– SV01 in assembly

On Track for SV01 Delivery and Launch 16

Documents

GPS Modernization - Stanford University€¦ · Back-to-Basics Investments •Extensive flight-like engineering models drove out issues early –30-70% reductions in discrepancies,