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International Civil Aviation Organization

International Civil Aviation Organization. Status of industry standards for GNSS CAR/SAM ATN/GNSS Seminar Varadero, Cuba, 6 to 9 May 2002. Presentation GNSS 4.1 by E. Chatre. Industry Standards : Where do they fit ?. ICAO SARPs. SIS. MASPS. MOPS. Receivers. MOPS. Ground equipments.

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International Civil Aviation Organization

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  1. International Civil Aviation Organization • Status of industry standards • for GNSS • CAR/SAM ATN/GNSS Seminar • Varadero, Cuba, 6 to 9 May 2002 Presentation GNSS 4.1 by E. Chatre

  2. Industry Standards : Where do they fit ? ICAO SARPs SIS MASPS MOPS Receivers MOPS Ground equipments

  3. EUROCAE • The European Organisation for Civil Aviation Equipment (EUROCAE) was created in 1963. • Forum in Europe where administrations, airlines and industry could meet to discuss technical problems • It develops minimum performance specifications for airborne and ground electronic equipment. • EUROCAE documents are considered by Joint Aviation Authorities to be referenced by the Joint Technical Standard Orders • The main European administrations and the main aircraft and equipment manufacturers are members of EUROCAE • Relevant groups for GNSS are WG 28 and WG 62

  4. RTCA • RTCA is a non profit organisation in the United States (Headquarters in Washington DC) • Powerful forum for standardisation of aviation user equipment • FAA is using these standards as a basis for Technical Standard Orders (TSOs) used during aircraft certification • Strong involvement of industry (airframe manufacturer, ground and airborne equipment manufacturers, FAA…) • Very active in the frame of GNSS : relevant group is SubCommittee SC 159

  5. Minimum Operational Performance Specifications (MOPS) • This is one of the standards developed by both EUROCAE and RTCA. It specifies technical charateristics for either airborne or ground sub-systems. • Typical table of Content is : • Introduction/Purpose • Classification of equipments • Technical requirements • Testing requirements • Installed performance section

  6. EUROCAE WG 28 : GPS • SG 1 was in charge with SBAS (EGNOS, WAAS) : dormant • SG 2 is in charge with GBAS ground segment • ED 95 (Nov 99) : MASPS GBAS Cat I • Preparation of ED 95A (update based on latest ICAO GNSSP definition of GBAS) • Preparation of MOPS for ground station (End 2002) • SG 3 is in charge with Multi Mode Receiver • Preparation of ED 88A MOPS for MMR including GBAS • SG 4 is in charge of preliminary studies on Cat II/III

  7. EUROCAE WG 62 : GALILEO • Working group created to deal with standardisation of GALILEO • First meeting held on January 15th • Objectives • To produce a list of working assumptions for the operational concept for use of GNSS • Draft version by the end of 2002 • Consolidated version in 2003 • To produce a MOPS for airborne equipment • Initial MOPS for development of receiver end 2004 • Final MOPS issued by 2008 • To develop documentation for standardisation of precision approach equipment (ground and airborne) • This will be done in conjunction with WG 28

  8. RTCA SC-159 • WG 1 is working on definition of GPS L5 ICD • GPS ICD 706 is available • Discussions are also ongoing on L5 signals on geostationary satellites for use within SBAS • WG 2 is working on SBAS (WAAS, EGNOS…) • DO 229 C is available. Improvements are on-going • Work on DO 229 D will start to deal with definition of requirements linked to APV operations and to include L5 related requirements. • WG 2C develops guidance for integration of GPS and INS • Current material is available as part of DO 229 Appendix R

  9. RTCA SC-159 • WG 4 is handling all matters related to GBAS • DO 245 MASPS for Cat I LAAS • DO 246 ICD for LAAS • Updates of DO 245 and 246 to ensure compliance with ICAO GBAS standards adopted by GNSSP • DO XX : MOPS for Cat I LAAS receiver • Activities recently launched to derive performance requirements for Cat II/III operations. • WG 5 is dealing with Airport Surface Operations • WG 6 is handling interference • DO 235 Assessment of radio frequency interference relevant to GNSS • Work will start in August to work on a similar assessment for the E5/L5 band

  10. Conclusions • ICAO standards (SARPs) developed by GNSSP are mainly focused on Signal In Space definition and ensure safety and Interoperability • Industry standards developed in Europe and the US are focused on ground and airborne user equipment and are quite detailed • MOPS are usually defining test procedures for equipment qualification • National regulation often call these industrial standards (TSOs or JTSOs) • Necessary in the frame of aircraft certification scheme

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