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SBAS Standards

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FundamentalsFundamentals
Title SBAS Standards
Author(s) Edited by GMV, based on ESA EGNOS book SP-1303
Level Basic
Year of Publication 2011


Introduction

There are two sets of International Standards which SBAS’s shall be compliant in order to be used by Civil Aviation Authorities:

  • The Standards and Recommended Practices (SARPS) Standard for SBAS systems established and controlled by the International Civil Aviation Organization (ICAO)[1] and which provides Standards regarding the type and content of data which must be generated and transmitted by an SBAS system. In general, the SBAS provider shall broadcast a SBAS Signal in Space (SIS) compliant to this standard in terms of radio-frequency characteristics, and data content and format.
  • The Minimum Operational Performance Standard (MOPS) DO229 established and controlled by the US Radio Technical Commission for Aeronautics (RTCA)[2] and which provides standards for SBAS receiver equipment.


For the aeronautical user international community, the documents listed in the following table constitute the current version of the core set of documents to be used for the development of a new system devoted to provide services to these users or for the development of aeronautical user terminals.

Document Item Reference Issue Date Standardisation Body
SBAS Elements
SARPS Volume 1 – Annex 10 Including Amendments 1-81 6 July 2206 ICAO
MOPS for GPS/WAAS airborne equipment MOPS DO-229 D 2006 RTCA SC 159
MOPS for GNSS Airborne Antenna Equipment MOPS-DO-228 1 January 2000 RTCA SC 159
MOPS for GNSS Airborne Active Antenna for the L1 Frequency Band MOPS-DO-301 1 December 2006 RTCA SC 159
Primary Constellations
GPS
GPS L1, L2C IS-GPS-200 E June 2010 GPS Wing (GPSW)
GPS L5 IS-GPS-705 A June 2010 GPSW
GPS L1C IS-GPS-800 A June 2010 GPSW
GLONASS
GLONASS L1, L2 ICD GLONASS ICD 5.1 2008 Russian Institute of Space Device Engineering
Galileo
Galileo Open Service SIS ICD OS SIS ICD 1 February 2010 European Union
MOPS for Airborne Open Service Galileo Satellite Receiving Equipment ED-TBD Draft 1.2 December 2010 EUROCAE WG62

Credits

Except for updates and small modifications, the information presented in this article has been mostly extracted from chapter 1.8 of ESA SP-1303 book.[3] The information therein was mainly obtained from the following homepages:

  • ICAO website.[1]
  • EUROCAE website.[4]
  • ARINC website.[5]
  • JAA website.[6]
  • RTCA website.[2]

Notes


References