1 > Dr. Roland Pleger, DLR19. 11. 2007

GALILEO ― What and Why

Roland Pleger, DLR19 November 2007

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.

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 3

What: PNTC

PNTC:PositioningNavigation TimingCommunication

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

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 5

Cell ID

Ground basedResolution: <1000m

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 6

LORANMeasurement of time differences

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 7

LORAN

Ground basedFrequency: 100 kHzResolution: 100 mE-LORAN: <20 mAugmentation: EUROFIX

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

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

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 10

Example: Frequencies in L1/E1 Band

GPSGalileoGlonassCompass

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

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.

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 13

PNTC

PositioningNavigationTimingCommunication

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

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 15

Digital elevation model

Examples3D topographic mapsFlood modelling

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

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 17

Communication (1)

ExamplesIntegrityAuthenticationSAR - Search and rescue

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.

Galileo Information Day Darmstadt, 19 Nov. 2007 - Dr. Roland Pleger, DLR. 19

Thank you!