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GNSS History

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Disclaimer

The views and opinions expressedherein do not necessarily reflect theofficial policy or position of any

government agency

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Satellite Navigation in the 1950s1950 1951 1952 1953 1954 1955 1956 1957 1958 1959

4 Oct 1957Sputnik ILaunched

Dec 1958The U.S.Navy

NavigationSatelliteSystem(Transit)Approvedand

Funded

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Other SuccessfulExperimentalSatellites:

2A, 22 Jun 19603B, 21 Feb 19614A, 29 Jun 19614B, 15 Nov 1961

Satellite Navigation in the 1960s (1 of 3)

Jan 1964TransitBecameOperational

July 1967TransitReleasedfor

CommercialUse- - - -

EstablishingU.S. DualUse SatNavPolicy

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

13 April 1960First Successful

TransitExperimentalSatellite (1B)

5 Dec 1963First

OperationalSatellite

OperationalTransitSatellite

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Satellite Navigation in the 1960s (2 of 3)

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

1964World’s First Surface ShipSatellite NavigatorAN/SRN-9 (XN-5)

1968World’s First

Portable SatelliteDoppler Geodetic

SurveyorAN/PRR-14Geoceiver

1969World’s FirstCommercialOceanographicNavigator

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Satellite Navigation in the 1960s (3 of 3)

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969

1969First Steps Toward GPS;Air Force 621B Program;

World’s First Spread SpectrumNavigation Receiver, MX-450

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Satellite Navigation in the 1970s1970 1971 1972 1973 1974 1975 1976 1977 1978 1979

1971First Timation Receiverfor the Naval Research

Lab (NRL)

1975First Concept Validation GPSNavigator, the GPS X-Set

April 1973Formation of the GPSJoint Program Office

(JPO)

1978 GPS Launches22 Feb, 13 May,7 Oct, 11 Dec

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Original

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GPS Launch Plans

The Atlas Booster launchedall Block I GPS Satellites

National policy wasto launch all

operational GPSsatellites with the

space shuttle

The January 28, 1986 Challengerdisaster forced a change

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Satellite Navigation in the 1980s1980 1981 1982 1983 1984 1985 1986 1987 1988 1989

28 Jan ‘86ChallengerDisaster

1984Commercial 5Channel GPSNavigator

1985GPS + Transit + Omega

19866 Channel GPSNavigator

9 Oct ‘85Last Block ILaunch

14 Feb ‘89LaunchesResume

1986WM101 GPS Satellite

Surveying Set

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0

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28

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01/01/78 01/01/82 01/01/86 01/01/90 01/01/94 01/01/98 01/01/02 01/01/06

Num

berofOperationalGPS

Satellites

IOC FOCSA OffSA On SA End

9/10/2008

GPS SA/AS, IOC, and FOC

07/04/91 – SA turned on12/08/93 – IOC Declared04/27/95 – FOC Declared05/01/00 – SA turned off09/18/07 – SA Ended

78 82 86 90 94 98 02 06 08

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Satellite Navigation in the 1990s1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

8 Dec ‘93GPS IOC

27 Apr ‘95GPS FOC

1990GPS/GLONASSNavigator

1991 6 ChannelGPS Engine

1991 CompactGPS Surveyor

1996 ProfessionalMarine DGPSNavigator

1997 MachineControl, 10 Hz,30 ms, 1 cm

26 Dec ‘91Dissolution ofthe Soviet

Union Enacted

4 Apr ‘91S/A Turned

On

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20

22

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26

28

30

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01/01/78 01/01/82 01/01/86 01/01/90 01/01/94 01/01/98 01/01/02 01/01/06

Num

berofOperationalGPS

Satellites

9/10/2008

L2CL5

Galileo

EU-US

GLONASSMemo

MBOC

GLONASSCDMA

SAOff

Modernization and GNSS Initiatives

78 82 86 90 94 98 02 06 08

03/30/98 – Announce Civil L201/25/99 – Announce Civil L505/01/00 – SA turned off05/26/02 – Galileo Approved06/26/04 – EU/USAgreement04/10/07 – GLONASS Memo07/26/07 – MBOCAgreement04/08/08 – GLONASS CDMA

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Satellite Navigation in the 2000s2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

1 May ‘00S/A Turned

Off

18 Sep ‘07S/A Ended

26 May ‘02GalileoApproved

26 Jun ‘04EU/USAgreement

8 Apr ‘08GLONASSCDMA

Announced

10 Apr ‘07GPS/GLONASSCooperationMemo

26 Sep ‘05IIR-MLaunchwith L2C

November 2004,Qualcomm announcedsuccessful tests of assistedGPS for mobile phones.

1-2 Dec ‘05ICG-1Vienna

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Satellite Navigation in the 2010s

• Approaching a newGNSS Golden Era– Many more satellites(GPS, Galileo, BeiDou,QZSS) with L1 and L5interoperable signals

– Much better availability,accuracy, integrity, e.g.,enabling ARAIM

• Anticipating CDMAsignals from GLONASS

• What does the futurehold?

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

28 May ‘10IIF Launchwith L5

11 Sep ‘10QZSSLaunch

21 Oct ‘11OperationalGalileoLaunch

2-6 Oct ‘15ICG-10

Boulder, CO

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Who Anticipated GPS in Cell Phones?

• Sparked by theE911 requirement

• Use of LocationBased Services(LBS) is exploding

• Improved byAssisted GPS(A-GPS)– Better accuracy– Location in

seconds– Turn-by-turn

navigation

More than a Billion Cell Phone GPS Users

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Who Anticipated Precision Agriculture?• One to 10 cm accuracy• Far better productivity,

efficiency, and protectionof the environment

• Enabled, e.g., by MSSsignals for the John DeereStarFire Service andseveral others

Automatic Steering

Automatic Spray Control

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Thank You

Questions?