International Data Link Symposium 2003International Data Link Symposium 20031st October 2003, Newbury, UK1st October 2003, Newbury, UK

FEASIBILITY STUDY FOR CIVIL FEASIBILITY STUDY FOR CIVIL AVIATION DATA LINK FOR ADS-B AVIATION DATA LINK FOR ADS-B

BASED ON MIDS / LINK16BASED ON MIDS / LINK16

Bob DarbyADS Programme

OUTLINEOUTLINE

Background

Scope of Study

Results

Next steps

BACKGROUNDBACKGROUND

ProblemProblem

Civil - Military Interoperability in a future surveillance environment, increasingly dependent on ADS-B

Difficulty & cost of fitting military aircraft with ADS-B equipment using currently defined ADS-B data links (1090ES, VDL Mode 4, UAT)

HistoryHistory Civil - Military Interoperability is a prime concern

of the EUROCONTROL Military Business Division (MIL BD) as well as of the ADS Programme.

Many military aircraft already carry MIDS/Link16 equipment with capabilities similar to ADS-B

Consider the possibility of adapting or developing MIDS/Link16 for civil aviation.

Ideas were developed and discussed between MIL BD, Industry and the ADS Programme.

Study contract call for tender issued. Study was won by the Spanish company ISDEFE. Final Report was completed in August 2003.

SCOPE OF WORKSCOPE OF WORK

Scope of StudyScope of Study To carry out a short Feasibility Study

to examine the possibilities that may exist for adapting or developing the existing military MIDS/Link 16 for use by civil aviation.

Such a system may support ADS-B, perhaps as part of a longer term (multi-link) capability to ensure civil-military interoperability. (Note that 1090 ES is the initial recommended ADS-B data link.)

MIDS/Link 16 should be considered for its possible advantages over and above the three existing ADS-B data links.

Any such link should also be capable of fulfilling all requirements for ADS-B Package 1 and beyond.

Main IssuesMain Issues Technical Feasibility (Deliverable Report) Economic Feasibility (Deliverable Report) Development/ Testing/ Certification planning

and time-scale aspects (Deliverable Report) for installation on military & civil aircraft, including

business aircraft and GA consideration of special problems - e.g. power

requirements, antenna installation Institutional and security issues for release of

design information (to allow a competitive market)

Overall assessment (Deliverable Report)

D2: Baseline Information & D2: Baseline Information & AssumptionsAssumptions (Deliverable Report)(Deliverable Report)

Operational requirements from “ADS-B Package 1” 12 Ground Surveillance & Airborne Surveillance Applications

Consider Avionics & Ground Stations, including TIS-B ADS-B system parameters, including capacity, to be

as for TLAT (ADS-B Technical Link Assessment Team) EUROCONTROL ADS-B Requirements & RTCA ADS-B MASPS. Range & capacity requirement (to support ADS-B applications) are

150 NM and 1000 aircraft. (Core Europe scenario 2015) MIDS/Link16 technology basis for surveillance only Indicative planning to be compared with ADS-B

Master Plan / Working Arrangements

RESULTSRESULTS

D3: Technical Feasibility Report D3: Technical Feasibility Report (Deliverable Report)(Deliverable Report)

New set of messages required for ADS-B. Software change only required for Military interoperability Driving application for capacity is “Enhanced Visual Acquisition”,

which offers potential safety benefits Handling of the maximum traffic at required update rate with

MIDS/L16 needs further investigation Several options developed: varying by

number of frequencies used (1, 2, 7, 51) fixed frequencies or frequency hopping number of nets used reporting rate (linked to use of contention mode & Rx update rate)

Best options are hopping, 7 or 51 frequencies, contention mode ... … which brings further advantages on interference and security Options with minimal impact on military operations are possible

D4: Economic Feasibility ReportD4: Economic Feasibility Report (Deliverable Report)(Deliverable Report)

Economic scenarios developed Air Transport, Business and GA fleets, extrapolated to 2020

System Specification On the basis of the Technical Feasibility Report, a System

Specification was made - for manufacturer COTS estimates. ViaSat has cooperated with the Study

non binding equipment proposal indicative cost quotation development & production time-scale (used for D5)

Comparison with 1090ES, VDL4, UAT costs Competitive with Air Transport category costs Probably not competitive with GA costs

D5: Development, Testing and D5: Development, Testing and Certification Planning ReportCertification Planning Report

(Deliverable Report)(Deliverable Report) Preliminary activities - leading to decisions

}Considerable parallelism

Development planning Testing planning Certification planning

Production & delivery rates - from Viasat

Feasible to be ready for implementation before 2009 supported by independent European manufacturer

review

D6: Final ReportD6: Final Report (Deliverable Report)(Deliverable Report)

Brings together the four previous reports Examines Institutional issues Identifies open issues & substantial areas of

further work

Overall conclusion (from a paper study) is encouraging, but there are significant Institutional issues to be solved before the new system would be able to be used as a data link to support ADS-B for civil aviation

NEXT STEPSNEXT STEPS

Next StepsNext Steps Dissemination

Final Report & associated material issued on a CD-ROM Presentations & Discussions

1-10-03: IDLS 3-10-03: NATO Air Traffic Management Committee (NATMC) CNS

Group 15-10-03: EUROCONTROL Civil-Military Interface Standing

Committee (CMIC) 15-10-03: EUROCONTROL Communications Team 22/23-10-03: EUROCONTROL ADS Programme Steering Group 18/19-11-03: EUROCONTROL Surveillance Team date TBD: one day workshop

Recommendations EUROCONTROL Management: CSM Unit, EMBD … NATO ...

ConclusionsConclusions Paper Study only; open issues include experimental

work and system modelling, as well as institutional discussions

Report material available today Indications: worth taking further Preparation for discussions and decisions is in hand One-day workshop planned Contact

Bob Darby (bob.darby@eurocontrol.int) Costas Tamvaclis (constantine.tamvaclis@eurocontrol.int) or visit the ADS Programme website, to download the Final

Report from the “ADS Latest News” section: http://www.eurocontrol.int/ads/ADS_Programme_content.htm

Questions?Questions?