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1 > Dr. Roland Pleger, DLR19. 11. 2007
GALILEO ― What and Why
Roland Pleger, DLR19 November 2007
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 2
Why: Some Reasons for Galileo
If European community relies on Satellite navigation,
it has to take over responsibility for the system.
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 3
What: PNTC
PNTC:PositioningNavigation TimingCommunication
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 4
Systems for PNTC
Ground basedSextant; ~ 1km GenauigkeitMobile Phone Network (Cell-ID) ~300mLORAN; ~ 100m
Satellite basedTransit (1964-1996); ~ 100mArgos; ~100mGPS, GLONASS, GALILEO, COMPASS; <10mAugmentation systems; <0.001m
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 5
Cell ID
Ground basedResolution: <1000m
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 6
LORANMeasurement of time differences
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 7
LORAN
Ground basedFrequency: 100 kHzResolution: 100 mE-LORAN: <20 mAugmentation: EUROFIX
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 8
Satellite Navigation
Get distance :1. to 1st satellite2. to 2nd satellite3. to 3rd satellite
Get time:4. by 4th satellite
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 9
GALILEO Frequencies
E5 E6
1280 MHz 1575 MHz
L5 L2 E2 E1L1
11780 MHz 1230 MHz
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 10
Example: Frequencies in L1/E1 Band
GPSGalileoGlonassCompass
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 11
GALILEO Services
Service E1,2 E6 E5 SAROS X XCS X X XPRS X XSoL X XSAR X
L1 L2 L5GPS IIR c X 2000GPS IIM X X 2005GPS IIF X X X 2009
Frequency
UserDatarate ~ 1kbps
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 12
Who knows where I am?
Cell-ID or ARGOS:The System.
Galileo, GPS or Loran:Only the receiver.
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 13
PNTC
PositioningNavigationTimingCommunication
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 14
Geodetic reference and maps
Galileo, GPS: GS84World Geodetic System 1984Glonass: PZ-90 Parameters of the Earth 1990
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 15
Digital elevation model
Examples3D topographic mapsFlood modelling
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 16
Time
ExamplesWorld wide time referenceUnique timestamp
Reference time for science better 1:10-13
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 17
Communication (1)
ExamplesIntegrityAuthenticationSAR - Search and rescue
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 18
Communication (2)
Traffic management
You have to trust the system.
You should knowabout the others.
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Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 19
Thank you!