GNSS PPP (Precise Point Positioning) A New Development for High Precision Navigation and Positioning John Vint, Survey Manager, Fugro Survey AS NNF – E-Nav Conference, Bergen, 6 March 2009 www.fugro.no

Scope of Presentation ƒ

What is GNSS PPP ?

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GPS Based High Precision Systems.

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Return of GLONASS.

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Fugro G2 Development.

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Advantages of Combined GNSS Systems.

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Products, Trials and Results.

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What does the Future have in store ?

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Fugro Survey AS

GNSS (Global Navigation Satellite Systems)

www.fugro.no

Fugro Survey AS

GPS Positioning Accuracies

Standalone GPS

25 m

Differential GPS

1m

Network Carrier Phase & Orbit / Clock Corrections

25m www.fugro.no

1m

10 cm

10 cm Fugro Survey AS

DGPS versus PPP Differential (DGPS)

www.fugro.no

Orbit and Clock

Fugro Survey AS

DGPS Dataflow

PS

e ns arat ctio sep rre co tation s PS D G e a ch for

DG

io ct rre co

ns

Fugro Survey AS www.fugro.no

Orbit and Clock Dataflow

Geostationary broadcast sattelite

c is Pre rbi eo c clo nd ts a ks

GPS and GL

ONA SS

data

Precise orbits and clocks GPS and GLONASS receivers

www.fugro.no

Orbit and clock calculation servers in Oslo

Correction receiver

Fugro Survey AS

GPS Based High Precision Systems

www.fugro.no

Fugro Survey AS

Fugro Reference Station Network and Broadcasts

www.fugro.no

Fugro Survey AS

Fugro Starfix.HP ƒ

All elements developed and implemented by Fugro

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Uses correction data from Fugro’s proprietary reference station network.

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Multi Reference Network Carrier Phase positioning computation.

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Dual Frequency

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Fugro Starfix.HP in HP Mobile and StarPack software.

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ca 30 minutes convergence time to full accuracy

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10 cm accuracy (2 sigma) assuming a reference station within 500 km

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Fugro Survey AS

NASA / JPL Tracking Stations

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Fugro Survey AS

Fugro SkyFix-XP ƒ

Hybrid system – Signals purchased from NASA / JPL, all other elements developed by Fugro

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Uses NASA / JPL managed reference stations

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Orbit and Clock “Global State Space” position computation.

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Dual Frequency system.

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MultiFix5 software.

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ca 30 minutes convergence time to full accuracy

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10 cm accuracy (2 sigma) almost independent of location.

www.fugro.no

Fugro Survey AS

Return of GLONASS

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Fugro Survey AS

GLONASS Come Back ! Deployment Milestones: – 14 satellites – 2007 – 20 satellites – 2008 – 24 satellites – 2009

Performance Comparable to GPS by 2009

http://en.rian.ru/russia/20051226/42709745.html www.fugro.no

Fugro Survey AS

GLONASS Constellation Deployment 30 27

24

24

GLONASS Initial Operation Capability (12 NSV , 3 year life-time ) President’s Decree № 658, 29.09.93

21 18

16

14 15 12

12

12

12

12

22

24

20 18 16 13

10

21

14 12

12

11 10

9 7

9

18

26

11

8

6 3 0 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 GLONASS deployment milestones:

– –

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18 satellites in constellation – 2008 24 satellites in constellation – 2010

GLONASS-M Flight Test (7 years life-time)

GLONASS-K Flight Test (10 years life-time)

Fugro Survey AS

16 of 17 Satellites Available

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3 satellites launched 25 September 2008 3 satellites launched 26 December 2008 6 satellites to be launched 2009 and in 2010 USD 2.6 Billion allocated for operations 2012-2020

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Fugro Survey AS

GPS Coverage Probability that GDOP