Enabling EGNOS Approaches in the MEDA Region

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Enabling EGNOS Approaches in the MEDA Region

• METIS Workshop
• Benefits of EGNOS in Civil Aviation
• Istanbul 18 November 2009

Víctor Álvarez, Josep Montonlio, Santiago
Soley santiago.soley_at_pildo.com
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Contents

• Pildo Labs Experience and Role
• Design of LPV in Çanakkale
• Database coding process
• GNSS receivers and platform operation
• Results and Lessons Learnt from the trials at
  Çanakkale and Perugia

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PiLDo Labs Experience and Role

• Wide experience in the GNSS aviation domain
• Technical support to Certification of new GNSS
  service provision in the aviation domain EGNOS,
  GBAS, in the future Galileo and
  multi-constellation
• Support the introduction of GNSS services in
  aviation
• Aircraft (GIANT, GIANT-2, GBAS trials)
• Rotorcraft (HEDGE)
• Promotion of GNSS European systems in the Latin
  America region
• ATM Solutions and applications RNAV procedure
  design and support tools
• Role in METIS Wide Area Demonstrations
  (Aviation)
• Equip Technoskys aircraft with a GNSS navigation
  platform
• LPV Procedure Design for Çanakkale airport
• Support Telespazio for the demonstrations plan
  definition
• Perform database coordination
• Support ANSPs for the installation of ground
  static receivers

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Design of LPV in Çanakkale (I)

• Process divided in several phases
• EGNOS performances in the region (use of MEDACON
  Data)
• Revision of Çanakkale AIP data information
• Coordinated design with DHMI team
• Chart generation

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Design of LPV in Çanakkale (I) - MEDaCoN (I)
MEDACoN another METIS demo composed by a network
of data collection stations in the MEDA Area
providing information about the status and the
performances of EGNOS over the region

• Çanakkale airport

TurkSAT station in Edirne
Technion station in Haifa
ARIJ station in Bethlehem
Source MEDACoN
Elgazala station in Ariana
Pildo Labs station in Barcelona
Alakhawayn station in Ifrane
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Design of LPV in Çanakkale (I) - MEDaCoN (II)
REMOTE PC
MONITORING STATIONS
ftp connection
DATA BASE STORAGE OF THE RESULTS
LOCAL DATA LOGGING
AUTOMATIC DATA POST PROCESSING
PERFORMANCE RESULTS

• Results on-demand
• Availability
• Accuracy
• Integrity monotoring

WEBSITE
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Design of LPV in Çanakkale (II)
Çanakkale Airport is located in the edge of
current EGNOS coverage
Çanakkale Airport
AD Coordinates 40º 08 10 N 026º 25 29 E
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Design of LPV in Çanakkale (IV)

• Inputs
• DHMI AIP data
• ICAO documentation Doc-8168 (PANS-OPS), Annex
  14, Annex 4
• Procedure Design Software
• AutoLisp Designer Tool (ADT) developed by Pildo
  Labs
• Annex 14 Surfaces
• Obstacles Identification
• Minima Calculation based on APV-1 OAS

Typical SBAS APV 1 OAS contours (source ICAO)
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Design of LPV in Çanakkale (V)
SBAS APV1 OAS
ADT SW Tool
Çanakkale SBAS APV 1 OAS and ADT module (source
Pildo Labs)
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Design of LPV in Çanakkale (VI)
CURRENT PUBLISHED NPA (VOR) PROCEDURE
PROPOSED LPV APPROACH PROCEDURE

• Compared to current NPA published procedures in
  Çanakkale, LPV offers
• Vertical guidance allowing continuous descent
  profile
• Benefits in terms of engine noise and pollution
• Reduction in the operational minima of more than
  900 ft (270 metres)
• Independence from ground navaids

Çanakkale VOR procedure (source DHMI)
Çanakkale LPV procedure (source Pildo Labs)
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Database coding process

• LPV procedure is defined by a Final Approach
  Segment Data Block (FAS DB) with a Channel Number
  identifier
• The FAS DB is a set of parameters to identify a
  single LPV during the coding and define its
  associated approach path (including a CRC
  reminder)
• The Channel Number consists on 5 numeric
  characters in the range 40000 to 99999 to
  identify an individual approach during operation
• This data is provided to database coders
  (Jeppesen) to insert it in their systems
• Receiver manufacturers (Garmin)
• build the receivers database

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GNSS receivers and platform operation (I)

• Garmin GNS480 certified avionics receiver
  computing deviations for pilots
• Septentrio PolaRx2 lab receiver for system
  monitoring

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GNSS receivers and platform operation (II)

• Deviations computed by the GNS480 horizontal
  only
• Presented to the pilot thanks to a CDI/VDI
  (Course Deviation Indicator/Vertical Deviation
  Indicator)

OPERATION DURING INITIAL APPROACH (IAF to IF)
CDI/VDI
GNS 480
Glide Slope Flag OFF
GNS 480 in TERMINAL mode
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GNSS receivers and platform operation (III)

• Deviations computed by the GNS480 horizontal
  vertical
• Presented to the pilot thanks to a CDI/VDI
  (Course Deviation Indicator/Vertical Deviation
  Indicator)

OPERATION IN LPV MODE (IF/FAF to Destination)
GNS 480
CDI/VDI
GNS 480 in APPROACH mode
Glide Slope flag ON
LPV annunciator
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Results and Lessons Learnt from the trials at
Çanakkale (I)

• Heritages from previous EU projects (Valencia,
  San Sebastian, Nice, Sion, Clermont-Ferrand...)
  re-used and adapted for this location
• 1st day 5th November 2009
• Intermittent LPV (APV 1) service in the area
  (edge of EGNOS coverage)
• All attempts ending with an Abort Approach
  message in the receivers display
• 2nd day 6th November 2009
• Nice performance of EGNOS SIS
• 5 approaches flown successfully

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Results and Lessons Learnt from the trials at
Çanakkale (II)

• 1st day 5th November 2009
• Intermittent LPV (APV 1) service in the area
• All attempts ending with an Abort Approach
  message in the receivers display

LATITUDE
Example 1st Approach HPL gt HAL 40m
Approaches aborted, not downgraded, due to the
lack of LNAV minima in the chart
LONGITUDE
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Results and Lessons Learnt from the trials at
Peruggia (I)

• Heritages from previous EU projects (Valencia,
  San Sebastian, Nice, Sion, Clermont-Ferrand...)
  re-used and adapted for this location
• 11th November 2009
• Nice performance of EGNOS SIS
• 5 approaches flown successfully

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Thank you for your attention METIS
project www.metis-project.eu