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METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 1
EGNOS and GALILEOAviation Application
Office National Des Aéroports (ONDA)(Moroccan Airports Authority)
Abdelahad BENHALLAMStudies department
METIS First Master Training & Seminar
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 2
1. Civil Aviation context
2. CNS / ATM concept
3. GNSS application in aviation
4. Evolution to EGNOS
5. Evolution to GALILEO
6. Regional co-operation
Outline
The METIS project is managed by the European GNSS Supervisory Authority through Euro-MED GNSS I project
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 3
Moroccan Airports Authority
• Public institution (1990) of an industrial and commercial nature.Under the tutory of the Ministry of Equipment & Transportation.
• Missions:- Management and development of the national airports.- Provision of air traffic services on the airports and all over the moroccan Flight
Information Region (FIR).- Training of civil aviation engineers, controllers and electronic specialists.
• 2.600 employees (850 aeronautical).
• International Mohammed VI Academy of Civil Aviation .• Aeronautical industry area (Mohamed V Aero-pole ): international proximity, 62
ha of ‘Ready to Output’ and ‘Ready for services’ areas.
• Partnership (ICAO, IATA, ACI, EUROCONTROL, ENAC, TPZ, etc.)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 4
Essaouirar
Tan Tan
Al Hoceima
Nador
TétouanTanger
Rabat-Salé
Casablanca
Agadir
Marrakech
Errachidia
Ouarzazate
Fès
Oujda National National AirportsAirportsInfrastructureInfrastructure
15 international& 6 domestic
Airports
10 millionsPassengers
56.000 tonnesof airfreight
Dakhla
Laâyoune
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 5
International Mohammed VIAcademy of Civil Aviation
Casablanca Mohammed VInternational Airport
Casablanca Mohammed VAero-pole
TERMINAL IIITERMINAL IITERMINAL I
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 6
International Mohammed VI International Mohammed VI Academy Academy of Civil Aviationof Civil Aviation Casablanca Casablanca AeroAero--polepoleAreaArea Control Control CenterCenter
Moroccan Airports Authority
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 7
Casablanca Flight Information Region
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 8
IFR Type 2004 2005 2006 ( vs global )
Overflight 173,7 177,9 187,8 ( 61,6 % )
International 68,2 78,1 87,4 ( 28,7 % )
Domestic 26,6 28,9 29,5 ( 9,7 % )
Total 268,5 284,9 304,7
Growth 5,0 % 6,1 % 6,9 %
Aircraft movements in the moroccan airspace(in thousands)
Air traffic evolution
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 9
��������� �����
���������
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� �����
ACC
(Radar)(Radar) (Radar)
CCommunicationommunication typestypes
Satellite
TowerTower
ACCATS
beacon
beacon
1. Aviation Context
�������
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 10
Conventional Conventional radioradio navaidsnavaids cclassificationlassification
frequency
En routeLong distance
En routeContinental
Approaches& Landing
3K VLF 30 LF 300 MF 3M HF 30 VHF 300 UHF 3G SHF 30
4RadioAlti
200 - 500ADF
200 - 500ADF / NDB(3 - 5°)
10 KHzOmega(~ 1000m)
100 KHzLoran-C(~ 100m)
108-118VOR, LOC(0.1 - 0.6°)
330Glide
(0.1 - 0.2°)
5MLS(~ m)
960 - 1215DME(500m)
112 - 118VOR(2 - 3°)
IonosphericLine Of Sight
Propagation
1. Civil Aviation Context
Non Non -- radio radio autonomous autonomous systems : systems : BarBaroo--altimeteraltimeter, INS , INS
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 11
• Range – accuracy dilemma• Need of route flexibility• Equipment cumbersome
ICAO, FANS1988
CNS / ATM Concept
1. Civil Aviation Context
Conventional Navaids andConventional Navaids and ATM system ATM system limitlimitationations s
Satellite nSatellite navigation avigation existing existing systemssystems
- Air space congestion- VHF frequency plan congestion - Lack of non-continental coverage- Economical aspects (delay, fuel, …)- Work load of controllers - Safety problem
• Long range & Accuracy, available frequency band, worldwide coverage• Examples: - ARGOS, SARSAT-COSPAS, GEOSTAR, etc.
- TRANSIT (GPS), CICADA (GLONASS)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 12
� International Civil Aviation Organisation (ICAO)Referential terms, Navigation performance definitions (Annex 10 and ICAO docs)
� International Telecommunication Union (ITU-R)Frequency Allocation
� European Organisation for Safety of Air Navigation (E UROCONTROL)Development of European Air Traffic Management (ATM) system
� European Organisation for Civil Aviation Equipment (EU ROCAE)� Radio Technical Commission for Aeronautics (RTCA - U SA)
Requirement for equipment certification
� Airlines Electronics Engineering Committee (AEEC)Equipment Interoperability (ARINC standards).
� Regional and national regulatory organisms.
1. Civil Aviation Context
MainMain NormalisNormalisationation OrganismsOrganisms
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 13
• Communication – Navigation – Surveillance / Air Traffic Management.
• "The CNS / ATM concept main objective is to allow operators/users to comply with expected departure and arrival times and to follow their prefered flight profiles with minimal constraints without compromising safety levels".
• "All ATM system components have to be considered including regulation, airspace, aircraft, traffic management, ground system, human, procedures, etc".
• All CNS systems are to be reconsidered for a global integration.
2. CNS / ATM Concept
CNS / ATM system componentsCNS / ATM system components
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 14
2. CNS / ATM Concept
Evolution Evolution to a CNS / ATM to a CNS / ATM environmentenvironment
Conventionnel Systems ICAO CNS/ATM environment
• VHF (voice) • Voice / Data (VHF Data Link)
• HF (voice) • Voice / Data (AMSS)
• Data link – SSR Mode S
• Aeronautical Telecoms Network
• Loran-C • Area Navigation / RNP
• Non directional Beacon (NDB) • Global Navigation Satellite system (GNSS)
• VOR / DME • Baro-alltimeter
• Baro-altimeter • INS / IRS
• INS/IRS • ILS / MLS
• ILS
• Primary / Secondary Surveillance Radar (PSR / SSR)
• Automatic Dependence Surveillance (ADS)
• Vocal position information • Secondary Surveillance Radar (A/C or S)
• Secondary Surveillance Radar A/C
Surveillance
Communication
Navigation
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 15
EquipmentQualificationCertification
Accuracy: Degree of conformance between the estimated or measu red position/velocity of a platform at a given time and its true positio n.
Integrity: Ability of a system to provide timely warnings to us ers when the system should not be used for navigation.
Availability: Indication of system ability to provide usable servic e within specified coverage area.Portion of the time during which the system is to be used for navigation while reliable information is presented.
Continuity: Ability of the total system to provide the required service without unscheduledinterruption .
Sole means : complies with all RNP criteria during a given phase of flight.Primary means : ensures required accuracy and integrity performance for a given phase of flight.Supplemental means : approved navigation system which can be used in conjunction with a sole means.
2. CNS / ATM Concept
RequiredRequired Navigation Performance (RNP) Navigation Performance (RNP) criteriacriteria
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 16
WideArea
LocalArea
Operation Accuracy 95%
Lateral / Vertical
Integrity Alarm Limit Horiz. / Vert.
Time-to-alert
Availability
Continuity
En Route RNP 20 to 10
2.0 NM / -
4 NM / -
5 min. 0.99 to 0.99999
En Route RNP 5 to 2 En Route, Terminale RNP 1
0.4 NM / -
1-10-7 2 NM / - 1 NM / -
15 s 0.999 to 0.99999
1-10-4 to 1-10-8
Iinitial Approche NPA, Departure RNP 0.5 to 0.3
220 m / -
Per hour 0.6 km / -
10 s
per hour
APV - I RNP 0.3/125
220 m / 20 m
0.6 km / 50 m
10 s
APV - II RNP 0.03/50
16 m / 8 m 1-2.10-7 per approach
40 m / 20 m
6 s 0.99 to
1-8.10-6 15 s interv.
Precision Approach Cat. I RNP 0.02/40
16.0 m / 6 to 4 m
40 m/ 15 to 10m
6 s 0.99999
Cat. II RNP0.01/15
6.5 m / 1.7 m
1-10-9
1 s
1-4.10-6 15 s interv.
Cat. III RNP0.003
3.9 m / 0.8 m per approach 1-2.10-6
30 s interv.
2. CNS / ATM Concept
RNP RNP criteriacriteria(Annex 10)
�����
RNP2
RNP.3
RNP1
RNP.5
RNP2
RNP1RNP.5
RNP.1
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RNP4,...
CATI200
CATII100
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METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 17
2. CNS / ATM Concept
AreaArea Navigation (RNAV)Navigation (RNAV)
• Navigation within RNP concept which permits aircraft operation on any desired flight path.
• RNAV Equipment operates by determining the aircraft position from one or more of a variety of nav inputs (VOR/DME, LORANC, INS, DME/DME, GNSS)
• Main benefits : + more direct routes reducing flight distances,+ greater flow of en-route traffic,+ establishment of alternative routes (eg overflying high-density area)
Typical strategyTypical strategy (ECAC)(ECAC)
• Since 1998: Basic RNAV (B-RNAV ) → RNP5 type.• 2005-2010: Precision RNAV (P-RNAV) → RNP1 type, for Terminal area.• 2010-2020: RNAV → RNP0.3 and RNP0.1 types, for En Route, Terminal areas,
approaches.
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 18
Planned Planned structure of structure of Casablanca Casablanca
FIR FIR (2008)(2008)
7 ROUTES instead of 4
2. CNS / ATM Concept
Moroccan contextMoroccan context: new routes of RNP5 type: new routes of RNP5 type
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 19
� Positioning & navigation of all types of aircraft
� ATC for all operational phases of flight- En Route, Non-Precision approaches, Precision Approaches,
Landing and Aerodrom control.
Decision Height Runway Visual Range
Cat I: DH ≥ 200 ft, RVR ≥ 550 mCat II: DH ≥ 100 ft, RVR ≥ 350 mCat IIIa: DH ≥ 50 ft, RVR ≥ 200 mCat IIIb : DH ≥ 0, RVR ≥ 50 mCat IIIc : DH =0, RVR=0
� Airspace Management (ASM), Air Traffic Flow & Capaci ty Management (ATFCM)- to protect ATC sectors from traffic overload- to optimise the use of existing capacity.
� Search and Rescue (SAR).
3. GNSS application in aviation
Application Application domainsdomains
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 20
σ σ= ⋅GDOP UERE
σσσσUERE : Equivalent Range Error (Root Sum Square of all deviations)
GDOP : Geometric Dilution Of Precision
Error sources : Clock unstabilityEphemeris biasIono and Tropo delaysRelativistic effectsThermal noiseMultipathUnintentional interferenceDeliberate interference
3. GNSS application in aviation
PPoositioning equation and error sitioning equation and error sourcessources
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 21
Simple difference
satellite clock bias,atmospheric delays, [SA]
are strongly reduced
Accuracy of a few metersRemained errors: Multipath, thermal noise
3. GNSS application in aviation
Accuracy improvement Accuracy improvement DGPS (code)DGPS (code)
Reference Station Reference
Station
Accuracy improvement Accuracy improvement DGNSS (phase)DGNSS (phase)
• Errors strongly reduced : satellite clock bias, atmospheric delays, [SA]• Resulted accuracy : provided in centimeter• Problem to be resolved: Phase ambiguity, Phase abrupt changes
Doubles differences
Receiver clock biasesare reduced
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 22
0 s 5 s 10 s 15 s 20 s 25 s 30 s0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
3D P
OS
ITIO
N E
RR
OR
IN M
ET
ER
S
TIME IN SECONDS
CODE POSITION
ERROR
PHASE POSITION
ERROR 20 21 22 23 240
1 cm
2 cm
25
Ambiguity Resolution
using MAPAS
3. GNSS application in aviation
DGPS Phase / DGPS Code DGPS Phase / DGPS Code positioning resultspositioning results
* Performed with LTST/ENAC(in C. Macabiau’s PhD)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 23
3.965 3.97 3.975 3.98 3.985 3.99
x 105
198
199
200
201
202
203
204
GEOTRACERMAPAS
1.34 1.345 1.35 1.355 1.36 1.365 1.37 1.375 1.38 1.38543.61
43.615
43.62
43.625
43.63
43.635
43.64
43.645
43.65REFERENCE STATION
AFFECTED AREA
500m
500m
3.9768 3.977 3.9772 3.9774 3.9776 3.9778 3.978 3.9782 3.9784
x 105
201.935
201.94
201.945
201.95
201.955
201.96
201.965
201.97 GEOTRACERMAPAS
1.3712 1.3714 1.3716 1.3718 1.372 1.3722
43.6216
43.6218
43.622
43.6222
43.6224
43.6226
3. GNSS application in aviation
AmbiguityAmbiguity resolutionresolution results results ((positioningpositioning))
* Performed with LTST/ENAC(in C. Macabiau’s PhD)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 24
3. GNSS application in aviation
Ambiguity resolution results Ambiguity resolution results ((integrity andintegrity and availabilityavailability))
* Performed with LTST/ENAC(in C. Macabiau’s PhD)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 25
Integrity improvement based Integrity improvement based on on failure detectionfailure detection / isolation / isolation
3. GNSS application in aviation
� � ����� ����� �������
RAIM : Receiver Autonomous Integrity Monitoring
� Snapshot methods: - current measurement- Mean Square Estimation of the all in view satellites based position
� Sequential methods: - current and previous measurements- Hypothesis tests based methods (compromise to be fixed)
AAIM : Aircraft Autonomous Integrity Monitoring (GPS, INS, Baro-alti).
� ���� � ����� �������
Differential stations, pseudolites � Local Area agmentations.
� ���!!�� ����� �������
Geos for GNSS Integrity Channel (GIC) � Wide Area augmentations.
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 26
3. GNSS application in aviation
Integrity improvement based Integrity improvement based on on hybridizationhybridization
� No current satellite system alone satisfy the norma lized demanding requirements.
� Hybridization with other(s) system(s) to exploit redu ndancy and complementarity:
� Need to guarantee- Positioning accuracy, signal integrity- Sufficient continuity and availability- Resistance from RF interference and jamming - Performance – complexity – cost compromise to be fixed
Onboard
Ground-based
Satellite-based
Integrated system Improved parameter 1 GNSS / INS Integrity, resistance from perturbations GNSS / Baro Vertical accuracy INS / Baro Vertical accuracy GNSS / INS / Baro Accuracy, integrity 2 GNSS / Pseudolite Coverage, accuracy GNSS / VOR/DME Redundancy of range measurements GNSS / LORAN-C Accuracy of en route navigation INS / VOR/DME Accuracy 3 GNSS / MEOs Availability, continuity, integrity GNSS / GEOs Accuracy, availability, integrity
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 27
GNSSINSBaroDoppler Radar...
HybridizationHybridization with Onboardwith Onboard SystemsSystems
3. GNSS application in aviation
� General context
� Basic idea
� Exploit redundancy and complementarity
� Objective
� Enhance integrity monitoring (AAIM)� Obtain continuity and availability aiding of the position solution� Robustness in disturbed environments (INS)� GPS / INS integration tool : loosely / tightly Kalman filter – based integration.
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 28
0 500 1000 1500 2000 2500 3000 3500 4000-100
0
100
200
300
400
500
600
700
800
9003 minute - Period Calibration of INS by GPS
seconds
met
ers
on X
axi
s
0 500 1000 1500 2000 2500 3000 3500 4000-900
-800
-700
-600
-500
-400
-300
-200
-100
0
1003 minute - Period Calibration of INS by GPS
seconds
met
ers
on Z
axi
s
0 500 1000 1500 2000 2500 3000 3500 4000-1800
-1600
-1400
-1200
-1000
-800
-600
-400
-200
0
2003 minute - Period Calibration of INS by GPS
seconds
met
ers
on Y
axi
s
HybridizationHybridization with Onboard Systemswith Onboard Systems (GNSS / INS)(GNSS / INS)
3. GNSS application in aviation
GNSS INS
calibration(re)alignment
(re)acquisitionresistance from RF interference, jammingintegrity monitoring availabilitycontinuity aiding
� �� " �� �������
� �#���!�$ �� �!����� �% ��
� Integration level, Updating period
� ‘Low cost’ INS can be satisfactory
GPS aloneINS+GPS
INS alone
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 29
3. GNSS application in aviation
� �#���!� &$ !����!% ���!�� �� " �� '� � �!������ �� )
HybridizationHybridization with Onboard Systemswith Onboard Systems (GNSS / INS)(GNSS / INS)
0 5 10 15 200
10
20
30
40
50
60
70
80Delay of calibration for a range bias of 24m
time (hours)
dela
y o
f cal
ibra
tion
(s
econ
ds)
GPS alone GPS + AOR-E + IORProtection limit (0.6NM)
Pos
ition
err
or (
NM
)
time
� �#���!� )$ ����!% ���!�� �� " ��
Baro Pseudorange
Integity
Monitoring
Module
Kalman
INS / GPS
INS
GPS * Performed with LTST/ENAC(in A. Younes’s PhD)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 30
� ������!��� *�� !��! ���� ���
� provide a supplementary ranging-like information
� improve geometry, accuracy and integrity
� Help phase ambiguity resolution
� RF interference, Tropo propagation errors and synchro offsets to be reduced
Pseudolite MonitoringStation
Signal ProcessingMessage elaboration
HybridizationHybridization with Grounedwith Grouned BasedBased SystemsSystems
3. GNSS application in aviation
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 31
GNSSGEO
Nav + Corrections+ IntegritySynchro GPS / GEO
Nav + Corr. + Integrity
Error elaboration Integrity Monitoring
ReferenceStation 1 Reference
Station 2
ReferenceStation 3
ControlCenter
� GNSS and GEOs (SBAS)
- Improve accuracy & availability (Ranging signals) and integrity (Redundancy &Satellite health information)
- Broadcast Correction data for GNSS1 (Cat.I NPA) and GNSS2 (precision approaches)
3. GNSS application in aviation
HybridizationHybridization with with Satellite Satellite SystemsSystems
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 32
( )r t
Basic Phase Lock Loop (PLL): Costa type
Low passfilter
Low passfilter
π2
LoopfilterVCO
eL
r(t) + e
eE
Tc/2 Early code
Tc/2 Late code
Basic Delay Look Loop (DLL): ‘Early-Late’ type
Low passfilter
Low passfilter
Loopfilter
VCOPRNgenerator
-400 -200 0 200 400 -1
-0.5
0
0.5
1
D E L A Y E R R O R
E R R O R V O L T A G E
3. GNSS application in aviation
Receiver technology improvementReceiver technology improvement
� ����� �% ��� ���� ����!��
�� ��+����� �� �������
������� � ��� �������)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 33
� Positioning accuracy improvement
� Resistance from multipath (adapted synchro modules, channel modeling,antenna diversity)
� Precise phase-based positioning (Ambiguity resolution strategy)
� Signal integrity control improvement
� Failure Detection / isolation through sequential pr ocessing and hybridization
� False acquisition impact on the measurements integr ity
Acquisition and tracking threshold reduction techni ques (Continuity, availability )
RFModule
Acquisition TrackingData
processing
PositionVelocityTime
� �� �
3. GNSS application in aviation
Potential studies and research subjects Potential studies and research subjects (1)(1)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 34
� Hybridization
� Hybridization is already widespread in air navigatio n
� GNSS / INS is a promising integrated system
� Current research on GNSS tends to efficiently hybri dize systems from differenttypes, to approach the required performance for Wid e area and Local area
� High level hybridization is necessary to achieve an operational GNSS2
� Data integration techniques
� Low complexity →→→→ Simplicity, Separated errors (Averaging , re-initialisation)
� Relatively high complexity →→→→ Optimality, Adaptivity (Estimation techniques,Kalman filtering,Non-Linear filtering)
3. GNSS application in aviation
Potential studies and research subjects Potential studies and research subjects (2)(2)
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 35
GPS + GLONASS
Aircraft-BasedINS, Baro
Ground-BasedDGNSS, Pseudolites
GNSS1EGNOS, WAAS, MTSAT
Satellite-BasedDGNSS, GEOs
GNSS2
GALILEO
Accuracy, Coverage, Integrity
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�-� � & $ ����� ���� � �-� � ) $ �,! � ���!!���
4. Evolution to EGNOS
The The EGNOS EGNOS frameworkframework
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 36
NLES
MCC
Reference stations (RIMS)
GEO
GPS + GLONASS
4. Evolution to EGNOS
� System components
(3 GEOs, 34 RIMS,4 MCC, 2 NLES)
The The EGNOS system EGNOS system
� Expected strategy
- Onboard augmentation (RAIM / AAIM): En-Route, Terminal and NPA approaches- Wide area augmentation: down to Cat I approach- Local area augmentation: precision approaches
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 37
4. Evolution to EGNOS
EGNOS contribution to Aviation EGNOS contribution to Aviation
� EGNOS services
� Ranging : supplementary GEOs based pseudoranges, improved accuracy and integrity
� Integrity : satellite health information, improved availability of integrity
� Extended Differential Navigation : iono correction applied to pseudorange provided by
all in view satellites
� Interoperability between EGNOS, WAAS & MSAS (receiver certification).
� Expected performance for aviation
- Advanced operational capability (AOC):
� Ranging, integrity and extended DGNSS services.
� GNSS as primary means from RNP20 to RNP0.03/45 (APVII).
- Full Operational Capability (FOC):
� AOC + progressive RIMS redundancy extension.
� GNSS as sole means from RNP20 to RNP0.03/45.
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 38
� Objective: Improve GNSS performance in the MEDA regio n.
� Phases
1. EGNOS services provision.2. EGNOS/GALILEO combined services provision.
� Implementation
EGNOS infrastructure extension through deployment of RIMS reference stations.
4. Evolution to EGNOS
Signal in Signal in space space provision in MEDA provision in MEDA
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 39
4. Evolution to EGNOS
� Within the context of extending EGNOS services to MEDA Region, Agadir Al MassiraInternational Airport was proposed to host a RIMS station.
� To be in line with system requirements, site surveys and a measurement campaignconducted jointly by Vitrociset and ONDA (December 2005).
� The goal was to determine wherever the site fills the requirements in term ofElectromagnetic Interferences (EMI), Multipath Propagation and Clear Horizon.
� The ICD is now available.
� The deployment of the required infrastructure will follow ESA – ONDA contractsignature.
Installation of a RIMS station in Agadir Installation of a RIMS station in Agadir
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 40
4. Evolution to EGNOS
TheThe site site of Agadir of Agadir
Radar Antenna
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 41
5. Evolution to GALILEO
GALILEO contribution to aviation GALILEO contribution to aviation
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METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 42
5. Evolution to GALILEO
GALILEO contribution to aviationGALILEO contribution to aviation
� ��* *��+�� % �!� $ ���� ����! ���� ��,���� ��,� �� �� ' ��)
� � �,��,� ����!��� ��� '1��� �!�1��)
- Efficient spectrum use- Minimum inter-system interference - Optimised complexity implementation
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 43
5. Evolution to GALILEO
Aviation performance Aviation performance vsvs GALILEO GALILEO SpecsSpecs(Dual (Dual frequency frequency L1+E5)L1+E5)
Operation Accuracy 95%
Horiz. / Vertical Integrity Time-to-
alarm Availability Continuity
APV – II RNP 0.03/50
16 m / 8 m 1-2.10-7
per approach
6 s 0.99 to 0.99999
1-8.10-6
15 s interv.
GALILEO
Specs 4 m / 8 m
1-2.10-7
per approach
6 s 0.998 1-8.10-6
15 s interv.
fromGSA
fromAnnex 10
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 44
5. Evolution to GALILEO
Expected Expected performance for aviationperformance for aviation
APV I APV II CAT IIICAT II
Global Coverage :
GALILEO Open Service + RAIM
GALILEO Open Service + Global integrity
Zone SBAS :
GPS + SBAS (EGNOS)
Local area
GALILEO + Local components
GALILEO + GPS + SBAS
METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 45
5. Evolution to GALILEO
Interoperability characteristicsInteroperability characteristics
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� 5��+�� % �,����% *�� ���*��� � ������
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METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 46
6. Regional co-operation
Institutional Institutional aspects (aspects (partnershippartnership))
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METIS First Master Training & Seminar, Ifrane (Moro cco), 15-16.03.2007Page 47
� Training to make regional skills available- Create regional specific courses.- Exchange engineering students during their final training course.- Develop engineering in GNSS equipments (antennas, receivers, etc.) .
� Expertise to improve installed systems performances - Organize periodic technical meetings.- Organize validation campaigns.
� Applied research- Participate in upstream studies (site analysis, theoretical development, simulations).- Participate in multinational R&D projects.
� For industries- Opportunities to implement GNSS related high tech.
6. Regional co-operation
CooperationCooperation opportunitiesopportunities