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Slide 1 ASAS TN (PowerPoint)

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					EUROCONTROL SURVEILLANCE STRATEGY


                     Presentation to ASAS TN2
                             17th September 2007




      Mel Rees
      Head of Surveillance
      EUROCONTROL



1
               Pillars of ATM Ground Based Surveillance

    Non-Cooperative Independent Surveillance:
    Calculates the (2D) position without reliance on aircraft avionics
           Primary Surveillance Radar (PSR)
    Cooperative Independent Surveillance:
    Provides the calculated aircraft 3D position and processes other aircraft
       avionic data (Mode A/C/S, DAPs or ADD)
           (Monopulse) Secondary Surveillance Radar (SSR), SSR Mode S, Airport
            Multilateration (MLAT) and Wide Area Multilateration (WAM)

    Cooperative Dependent Surveillance:
    Provides the aircraft derived position (GPS or INS) and other aircraft
       avionic data (including ADD) to broadcast “air-ground” and “air-air”
           ADS-B, (ADS-C)
2
                                     Surveillance Strategy

    3 pillars of mutually interoperable and compatible technologies


                              Primary Radar




        MSSR                     ADS-B                      MLAT

     SSR Mode S                                             WAM




                  Surveillance Data processing systems
3
                                        Surveillance Choice

    The Surveillance Strategy for ECAC does not mandate the
      implementation of any specific surveillance technology or
      technique, but leaves the choice of ground based surveillance
      systems to the (ANSP) surveillance provider, depending on:
     Operational Requirements
     Safety assessment
     The business case (geography, cost, topology, preference,
      integration risk, redundancy, integrity, etc).

    PSR is required in TMAs to cater for failed avionics in a critical
      phase of flight.

4
                         Primary Surveillance Radar

                                    Primary Surveillance Radars are
                                     expensive, high powered and spectrum
                                     inefficient
                                    The maintenance and support lifecycle
                                     cost are high
                                    Some European Air Navigation Service
                                     Providers are considering not replacing
                                     primary radar in the future
                                    However, PSR is a safety net in TMA

       EUROCONTROL is investigating the possibility of a more cost
        effective alternative solution for Primary Surveillance Radar

5
                                                TMA / En-Route
                                       Ground Based Surveillance
    For safety or security reasons, Non-Cooperative Independent Surveillance as
    implemented, if required:
                                        PSR                            - Available
                            “Multi-Static PSR” (MSPSR)                 - R&D required
    Until 2020+, at least one layer of ATM ground surveillance should be an co-operative
    independent surveillance to meet safety requirements:
                      Layer 1                     Layer 2                  Status:

               MSSR/SSR Mode S                MSSR/SSR Mode S             - Operational


               MSSR/SSR Mode S                        WAM                 - Operational


               MSSR/SSR Mode S                       ADS-B                - Planned


                       WAM                           ADS-B                - Foreseen
6
                                                         Airports
                                        Ground Based Surveillance
    For safety reasons, Non-cooperative Independent Surveillance is implemented, as
    required:

                       SMR                  - Available at most airports

    To provide an Airport Situation Picture, including identification of aircraft and
    vehicles, a cooperative independent surveillance is required, that also supports the
    implementation of higher A-SMGCS levels.

                Airport Surveillance       Status:

              Multilateration (MLAT)       - Operational at many major European airport


                      ADS-B                - Planned at secondary airports


                      TIS-B                - TIS-B or equivalent required for highest
                                           levels of A-SMGCS. Not yet implemented.
7
                           SESAR - Surveillance Systems

    Some other Surveillance Systems identified by SESAR:
       Weather Radar
          Ground Based
          Airborne
                                             NOT currently
       Wake Vortex detection                included in the
                                             SUR Strategy
          Ground Based
          Airborne
       Special surveillance systems
          Debris detection


       Low Power SSR (Mode S) Transponder
8
                Wide Area Multilateration (WAM)

       Some WAM systems already in operational use, however
        Standards not yet generally available.
       ICAO ASP working to “recognise” WAM in ICAO Docs.
       EUROCAE WG 70 “WAM MOPS” due mid 2008.
       Certification based on comparison with the SSR Standards;
        shows performance equal to or better than SSR.
       Generic Safety Statement, available end 2007.
       Guidelines for Approval/Certification due early 2008.




9
                                                       ADS-B Out

        ADS-B NRA (SPR/Interop) developed by RFG.
        ADS-B RAD due mid 2008
        ADS-B APT and ADS-B SURF due mid 2009
        1090ES transponder numbers increasing in European airspace.
        However, currently there are some issues that require attention
           There is no mandate yet for the carriage of 1090 ES
           No certification yet, NRA due end 2007 (Certification
             generally 1yr after Standards available)
             The aircraft avionic position potentially needs to be verified by an
              independent means of surveillance (results from safety work)

         Combination of ADS-B/WAM likely future surveillance scenario
10
                                                        ADS-B In

        ADS-B “in” is required for ATSA and ASAS applications, these will
         become more and more important
        ATSA VSA and ATSA ITP standards due mid 2008
        ATSA AIRB standards due 2009

        Other ATSA and ASAS standards (SPR + Interop) will come later.




11
                                              Transponder Monitoring

     The Airborne Monitoring Programme is also used to track
     the airborne transponder equipage: Mode-S and ADS-B

     Elementary surveillance Statistics – ELS                               March 2007   Trend


     Percentage of the flights with SI code capability (bds1.0)             96.96 %

     Percentage of the flights with aircraft ID capability (bds.10)         95.84 %

     Enhanced surveillance Statistics – EHS (bds1.0 bit25=1)
     Percentage of the flights with enhanced surveillance capability        92.59 %

     ADS-B: Extended Squitter capability – ES (bds 1.0)
     Percentage of flights with Extended Squitter capability                76.97 %



     Flights with aircraft ID confirmed correct                             90.62 %


     In the European Core area                                 August 07 data
12
                                                          Surveillance Products

         ARTAS, RMCDE and SASS-C are complementary products, being
           updated to process ADS-B Out, ADS-C and WAM/MLATdata.

                                                   Surveillance
                                                      Data
                                                    Evaluation

                 Sensor Configuration Planning                            Track
                  Sensor performance analysis
                                                    SASS-C                analysis




PSR
MSSR
         Surveillance    Reports                                             Tracks      ATC
Mode S     Sensors
                                      RMCDE                   ARTAS
                                                                                      functions
ADS
WAM                                 Surveillance           Surveillance
                                       Data
                                       RRR                    Data
MLT                                 Distribution           Processing




13
                                  Implementing Rule
         Surveillance Performance and Interoperability


         EC requested a Surveillance Performance and Interoperability
          Implementing Rule.
         Draft Regulatory Approach offered 3 options; option 3 =
          carriage of 1090ES/SI capable Mode S transponder. This
          solution supported by 75% of those who commented.
         Draft IR will now be constructed along the lines of option 3.
         Out for formal EPRM consultation in spring 2008.
         Date of applicability, yet to be determined.




14
                                                   Conclusions

        SUR Strategy, as described, widely implemented within ECAC.
        Strategy accepted into SESAR.
        SESAR Implementation Packages, leading to target
         architecture, still under development as part of D4 activity.
        All strategy elements will be formally mapped to an
         Implementation Milestone.
        Likely ADS-B ATSA and ASAS applications will be spread
         across several of the Implementation Packages, building as
         time progresses.




15
     Reserve slides giving more detail




16
                   Surveillance Strategy for ECAC

     Within En-Route and TMA airspace, the key operational drivers for the
         surveillance strategy are illustrated in figure 1.
     2005            2010                2015              2020           Purpose / Applications:
                                                                         Independent surveillance for
      Safety                                                             non co-operative targets in
                                                                         TMA airspace

     Increased support to the controller's ATM Tools                     Short Term Conflict Alert
                                                                         Minimum Safe Altitude
     like STCA and MSAW                                                  Warning
                                                                         Downlink of trajectory
                         Improved Medium Term Conflict Detection         change points

                              ASAS Air Traffic Situation Awareness       Traffic situation picture
                              Spacing and Separation applications        presentation to Aircrew

                                                                         Traffic information
                       Air-to-air exchange of trajectory information     presentation to Aircrew



     Figure 1. Key Operational Drivers for En-Route and TMA Surveillance Strategy



17
                    Surveillance Strategy for ECAC

     The strategy for the ground based surveillance infrastructure to enable
        the ATM operational En-Route and TMA applications over the next
        twenty years is illustrated in figure 2.
         2005            2010                2015              2020          Purpose / Applications:

                                                                             Independent surveillance for
         Primary Surveillance Radar                                          non co-operative targets where
                                                                             and when required
                                             ADS-B ground receivers
                      using 1090 Extended Squitter or another datalink        Aircraft Derived Data
                                                                              (ADD) delivery to the
                                                                              ground users
         SSR or SSR Mode S infrastructure
                                                                                Ground based
                                           Wide Area Multilateration
                                                                                Position calculation
                        using 1090 MHz (Squitters) or another datalink
                                                                            To provide supplementary
                                                          TIS-B Services    information to the aircrew

                Surveillance Data Processing and Distribution


         Figure 2. Ground based surveillance infrastructure for En-Route and TMA

18
                    Surveillance Strategy for ECAC

     At Airports, the key operational drivers for the surveillance strategy are
         illustrated in figure 3.
       2005        2010                 2015                2020             Purpose / Applications:


       Detection of all mobiles including non co-operative
                                                                              A-SMGCS level I and II,
                                                                              including Package 1
                                Detection of co-operative targets and         ADS-B-APT
                          automatic extraction of aircraft identification

                                          Automated Conflict Detection       A-SMGCS level II

                                                                             A-SMGCS level III,
                        Presentation of Airport information to aircrew       including Package 1
                                                                             ATSA-SURF

                               Conflict prediction tools for the aircrew     A-SMGCS level III and IV



       Figure 3. Key Operational Drivers for Airport Surveillance Strategy



19
                     Surveillance Strategy for ECAC

     The strategy for the Airport surveillance infrastructure to enable the
        ATM applications over the next twenty years is illustrated in figure 4.
         2005        2010                2015                2020
                                                                           Purpose / Applications:
         Surface Movement (Primary) Radar
                                                                           A-SMGCS level I and II
                                                                           (including Package 1
                                 (Airport) Multilateration and/or ADS-B    ADS-B-APT)
                using 1090 MHz (Extended Squitter) or another data link

                                                          TIS-B Services
                                                                           A-SMGCS level III and IV
                                                                           (including Package 1
                                 (Airport) Multilateration and/or ADS-B    ATSA-SURF)
                using 1090 MHZ (Extended Squitter) or another data link

                  Surveillance Data Processing and Distribution


                   Figure 4. Surveillance Strategy at the Aerodrome


20
                   Surveillance Strategy for ECAC

     The strategy for the Airborne surveillance infrastructure to enable the
        ATM applications over the next twenty years is illustrated in figure 5.


       2005          2010                2015             2020        Purpose / Applications:


                                        SSR Mode S and ADS-B out      Ground surveillance: Mode S
                                                                      or Multi-Lateration and
                                                                      ADS-B package I
                                            ADS-B in + TIS-B + CDTI
                                                                      ASAS Separation
               Surveillance Data Processing / Air Situation Picture   ADS-B Packages 2 & 3




              Figure 5. Airborne Surveillance Strategy




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