Journal of Satellite, Information and Communications (한국위성정보통신학회논문지)

Korea Society of Satellite Technology (한국위성정보통신학회)
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Conceptual Design of the RF Links for KASS Satellite Communication System

KASS 위성통신시스템 RF 링크 기본 설계

  • 유문희 (한국전자통신연구원 방송.미디어연구소 위성항공ICT연구부 위성항법.레이더연구실) ;
  • 신천식 (한국전자통신연구원 방송.미디어연구소 위성항공ICT연구부 위성항법.레이더연구실)
  • Received : 2016.07.18
  • Accepted : 2016.09.29
  • Published : 2016.09.30
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Abstract

ICAO (International Civil Aviation Organization) recommends the introduction of SBAS (Satellite Based Augmentation System) in 2025, which provides GNSS (Global Navigation Satellite System) correction data and the ranging signal via GEO (geostationary earth orbit) satellites to GNSS users. In this paper, we present the basic design results of the satellite communication system RF link for the Korean SBAS systems, KASS (Korea Augmentation Satellite System) which is going on the development & implementation. KASS RF link was designed in consideration of both the C-band and Ku-band uplinks to meet the international standard requirements for the SBAS system, and identified the minimum EIRP and G/T performance of the KASS uplink station for each frequency band. These analysis results for the RF link design are expected to be used for an effective design of the subsystem specifications for KASS satellite communication system.

정지궤도 위성들을 이용하여 사용자들에게 GNSS (Global Navigation Satellite System) 정정 데이터 및 레인징 신호를 제공하는 SBAS (Satellite Based Augmentation System)는 국제민간항공기구에 의해 2025년까지 도입되도록 권고되고 있다. 본 논문에서는 현재 개발/구축 사업으로 진행중인 한국형 SBAS 시스템인 KASS (Korea Augmentation Satellite System)의 위성통신시스템 RF 링크를 기본 설계하여 그 결과를 제시한다. C 대역 상향링크와 Ku 대역 상향링크를 모두 고려하여 SBAS 시스템에 대한 국제 표준 요구사항을 만족하도록 RF 링크를 설계하였고, 각 주파수 대역에 따른 요구되는 위성통신국의 최소 EIRP 및 G/T 성능 규모를 파악하였다. 이러한 RF 링크 설계 분석 결과를 이용하여 KASS 위성통신시스템의 하위 시스템 규격 선정시 효과적인 설계가 될 수 있도록 활용할 예정이다.

Keywords

References

  1. C.S. Sin et al, "Technical Development Trends of Satellite Based Augmentation System", Electronics and Telecommunications Trends, vol. 29, No.3, pp. 74-85, 2014.
  2. ICAO, .Annex 10 to the Convention on International Civil Aviation, Volume I - Radio Navigation Aids, International Standards and Recommended Practices, Amendment 89, November 2014.
  3. RTCA, Minimum Operational Performance Standards (MOPS) for Global Positioning System/Wide Area Augmentation System Airborne Equipment, DO-229D (Change 1), February 1, 2013.
  4. C.S. Sin et al, "Conceptual Design Analysis of Satellite Communication System for KASS", Journal of Advanced Navigation Technology, Vol.20, No.1, pp. 8-14, 2016 https://doi.org/10.12673/jant.2016.20.1.8
  5. FAA, System Specification for the Wide Area Augmentation System, FAA-E-2892d, March 28, 2012.
  6. Chris Neville, "EGNOS Implementation Status", PBN TF/ RAiSG meeting, Brussels 12th-14th March 2014.
  7. ITU-R, Propagation data and prediction methods required for the design of Earth-space telecommunication systems, Recommendation ITU-R P.618-12, 2015.
  8. 권용기, "국내 무선통신망 설계를 위한 지역별 강우강도 분포 동향", TTA Journal, Vol. 150, 11/12호, pp. 56-60, 2013.
  9. Inmarsat, System Definition Manual (SDM) for accessing Inmarsat-4 navigation Transponders, Issue 1.1, 10 March 2008.
  10. Claudio Soddu, "Space Capacity for SBAS", SBAS 2015 Workshop, 24-25 March 2015.
  11. Takeyasu Sakai, "MSAS Status", IS-GNSS 2014, Oct. 22, 2014.
  12. N. Neelakantan, "Overview of Indian Satellite Navigation Programme", 5th Meeting of the International Committee on Global Navigation Satellite Systems (ICG), 18 October 2010.
  13. Mike Pavloff, "European Geostationary Navigation Overlay Service (EGNOS) Capability on Sirius 5 Satellite for SES", 3rd Annual Symposium of Position, Navigation & Time, 21 October 2009.
  14. Inmarsat, "Inmarsat Capacity for Korea SBAS", 6 December 2013.
  15. Claudio Soddu et al,. "Inmarsat-4 First L1/L5 Satellite: Preparing for SBAS L5 Services", ION GNSS 18th International Technical Meeting of the Satellite Division, pp. 2304-2315, 2005.