GALILEO OVERVIEW AND STATUS Alexandre Steciw Cracow-23 September 2004

The European Approach (1) EGNOS Civil augmentation to military GPS and GLONASS Signals distributed through 2 Inmarsat / 1 Artemis Geo Transponders Interoperable with WAAS and MSAS (ICAO standard, seamless service) Pre-operational EGNOS Signals already available through EGNOS Testbed since early 2000 – used for tests and demonstrations Fully Operational Signal in 2004 Initiative of the European Commission, Eurocontrol and ESA EGNOS is the first contribution of Europe into GNSS and the first step towards Galileo

The European Approach (2) Galileo Global Navigation Satellite System Under Civil Control Independent but compatible and interoperable with GPS and GLONASS With service guarantees Target Date to be operational - 2008 Initiative of the European Commission and ESA

Galileo Services Galileo Satellite-only Navigation, Positioning & Timing Services (through the Galileo Signal-In-Space): Open Service (OS) –free and available to the public Commercial Service (CS) – under commercial conditions Safety of Life Service (SoL)- for safety-of life applications & users Public Regulated Service (PRS)- for government authorised users Support to the Search and Rescue Service (SAR): 406/1544.1 MHz transparent Forward Link for COSPAS/SARSAT compatible distress beacons localisation in the COSPAS/SARSAT ground segment SAR Return Link Messages (Acknowledgement & Coordination) through Galileo Signal in Space

Galileo Services Galileo Locally Assisted Services: Network Assisted/ Location Based Services Indoor Positioning Services High Precision Navigation & Positioning Services Galileo SIS plus Local Augmentations: Improved safety-of life applications, e.g. for trains & railways, port navigation, precision landing approach etc. Road applications (predicted adaptive cruise control, tolling etc.)

Galileo Services Galileo Combined Services Galileo + other satellite navigation system (SBAS, GPS, GLONASS,...) Galileo + other non-satellite navigation systems (LORAN C, mobile systems,…) Galileo + communications systems (GSM, GPRS, UMTS,…) EGNOS Services augmenting GPS and complementing Galileo services Wide area differential corrections for GPS over ECAC region Real-time Integrity messages for GPS-based Safety-of Life applications Ionosphere corrections for single-frequency users Complementary GPS-like ranging signals for improved availability

GALILEO Open Services Performance

GALILEO SOL Performance

GALILEO + GPS Combined Performance Combined use provides increased performance and availability (RAIM) for high masking angle, e.g. urban canyons

GALILEO Frequency Plan, L-Band GALILEO Bands (Navigation) GALILEO SAR Downlink GPS Bands E5a/L5 E5b E6 L1 E2 E1 1164 MHz 1214 MHz 1260 MHz 1300 MHz (*) 1176.45 MHz 1278.75 MHz 1544 MHz 1545 MHz 1559 MHz 1587 MHz 1591 MHz 1563 MHz 1575.42 MHz 1215 MHz 1237 MHz (*) 1207.140 MHz SAR L2 RNSS Bands ARNS Bands

GALILEO Signals 1278.75 MHz 1575.42 MHz 1176.45 MHz 1207.140 MHz E6 G/Nav Signal: BOC(10,5) mod. Rc=5.115 Mcps C/Nav Signal: Data + Pilot BPSK mod. Rs=1000 sps 1575.42 MHz L1 E2 E1 BOC(n,m) mod. I/Nav Signal: BOC(2,2) mod. Rc=2.046 Mcps Rs=250 sps 1176.45 MHz L5/E5a E5b F/Nav Signal: Data+Pilot BPSK mod. Rc=10.23 Mcps Rs=50 sps (MHz) PILOT CHANNELS DATA CHANNELS 1207.140 MHz Frequency Frequency

GALILEO Signal Parameters Bands E5a E5b E6 E2-L1-E1 Services OS/SOL/CS OS/SOL PRS CS Channels Data Pilot   Ranging Code Rate (Mcps) 10.23 5.115 m 2.048 Modulation Type AltBOC BOC (10,5) BPSK (5) (n,m) (2,2) Symbol Rates (Bd) 50 N/A 250 --- 1000 ---- Minimum Received Power on Ground at 10o elevation in dBW -158 -155 -160 to

GALILEO Architecture

The GALILEO Satellite Mass at Launch (incl. Propellant) Power Consumption Dimensions: Main Body Length (with deployed solar arrays) Lifetime Ca.680 kg Ca. 1.6 kW   2700 x 1200 x 1100 mm 13 m 12 years

The GALILEO Ground Segment The Galileo Ground Segment comprises the Ground Control Segment (GCS) and the Ground Mission Segment (GMS) and includes: A global network of Galileo Sensor Stations (GSS) A global real-time oriented network of Up-link Stations (ULS) for mission data up-link in C-Band A global network of Telemetry, Telecommand and Ranging Stations (TT&C) for control of the satellites in S-Band An interconnecting high performance communication network and 2 geographically redundant Galileo Control Centres (GCC) for all the centralised processing, monitoring & control.

The GALILEO Ground Segment Architecture

Considered TT&C & ULS Station Sites Svalbard or

Locations considered for Sensor Stations

GALILEO Master Schedule 1 Test Satellite & 4 Operational Satellites Ground Infrastructure 26 Satellites Routine Operations and Replenishment Development and Validation Deployment Operations and Maintenance 48 months 24 months 20 years

The European Commission 6th Framework Programme Complementing the Development of the Galileo System

EC 6th Framework Programme, 1st Call Development of User Receivers Development of Local Elements Preliminary Design of a Local Component Demonstrator Preliminary Design of SAR G/S Elements, e.g. MEOLUT Preliminary Design of a Galileo Time Service Provider Preliminary Design of a generic Galileo Service Centre Preliminary Design of a generic External Regional Integrity System Galileo Thematic Support certification external interfaces frequency issues EGNOS Integration into Galileo Development of Galileo Business Plan

The European Space Agency Galileo System Test Bed Programme Mitigating the Technical Risk for the Development of the Galileo System

ESA GSTB Activities GSTB V.1: Design and Verification Tool for the mitigation of the Galileo risks related to algorithms Experimentation framework convoying the experience from European industries, institutes and agencies towards common objectives A GSTB V1 Processing Centre set-up at ESA/ESTEC, Noordwijk with access to 1-sec observed GPS dual-frequency data from 25 sensor stations worldwide GSTB V.2: Protection of GALILEO frequency filings In orbit atomic clocks experimentation MEO environment characterisation Signal experimentation Two independent contracts are placed with European Industry (GAIN & SSTL) to launch two Experimental Satellites by end of 2005 Experimentation activities are planned to be performed in the frame of the Galileo IOV programme

Conclusions Galileo after EGNOS will provide a further European Contribution into Global Navigation Satellite Systems Galileo will ensure interoperability with existing systems for the benefits of the users Galileo will be open for partnerships in other regions With the approval of the IOV Program for Galileo - Galileo is becoming a reality Thank you for your attention!