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Relay of Remote Control Signal for Spacecraft in Deep Space via FHLH

FHLH를 매개로 한 심우주 우주선 원격 제어 신호 중계

  • Received : 2019.11.11
  • Accepted : 2020.03.02
  • Published : 2020.04.01

Abstract

When a spacecraft in deep space falls into an abnormal state, an emergency communication channel between ground and the spacecraft is essential in order to perform analysis to the cause of the anomaly, and to remedy the spacecraft from the distressed state. Because the recovery actions generally comprises of long and complicated sequences of commands, the transmission of the recovery commands may require a reliable and a delay tolerant networking technology based on bundle routing. While the delay tolerant networking protocol becomes a prominent method interfacing ground and space into a internet-like Solar system network because it can address the issues of the severe communication problems in deep space, the communication system on the spacecraft which based on space packet protocol cannot use the delay tolerant networking technology directly. So a community of the consultative committee for space data systems starts a discussion of the first-hop last-hop mechanism to establish a feasible concept and standardization. This paper presents an enhanced concept of the first-hop last-hop by applying it a virtual cislunar communication environment, and we believe this contributes to make a way applicable to an interoperable relay concept of the first hop last hop between the delay tolerant networking and space packet protocol standard.

심우주를 항행하고 있는 우주선에 이상이 발생했을 때 지상-우주선 간 비상 통신 채널은 우주선의 상태를 파악하고 문제를 수정하기 위해 필수적이다. 복구 명령은 보통 길고 복잡한 명령들로 구성되어 있기 때문에 번들 라우팅에 기반한 지연 허용 네트워크 기술의 도움이 필요하다. 우주 패킷 프로토콜을 근간으로 구축된 심우주 우주선 통신 시스템은 지연 허용 네트워크에 의한 통신 서비스를 이용할 수 없기 때문에 우주 데이터 시스템 자문 위원회 커뮤니티에서는 first-hop last-hop 개념의 구체화 및 실용화를 시작하고 있다. 본 논문에서는 달 주변 환경에서 first-hop last-hop의 개념을 적용하였으며, 이는 향후 지연 허용 네트워크 및 우주 패킷 프로토콜 간 중계 개념을 구체화하고 실용화하는데 기여할 것으로 예상한다.

Keywords

References

  1. National Aeronautics and Space Administration, Space Network User's Guide (SNUG), revision 10, Washington, 2017, p. 99.
  2. CCSDS, Space Packet Protocol - Recommendation for Space Data System Standards, CCSDS 133.0-B-1. Blue Book, Tech. Rep., 2003.
  3. Gibson, J. D., The Communications Handbook, 2nd Ed., CRC press, Dallas Texas, 2002, pp. 915-927.
  4. Koo, C. H., and Kim, H., "Communication Relay Service for Deep Space Exploration: Evolution of Space Communication Relay Networking Concept," Journal of Korean Institute of Communications and Information Sciences, Vol. 44, No. 12, 2019, pp. 2199-2208. https://doi.org/10.7840/kics.2019.44.12.2199
  5. Zhang, L., Xiong, L., Sun, J., Gao, S., Wang, X., and Zhang, A., "Technical characteristics of the relay communication satellite queqiao for Chang'e-4 lunar farside exploration mission," SCIENTIA SINICA Technologica, Vol. 49, No. 2, 2019, pp. 138-146. https://doi.org/10.1360/N092018-00375
  6. Cerf, V., Burleigh, S., Hooke, A., Torgerson, L., Durst, R., Scott, K., Fall, K., and Weiss, H., RFC 4838: delay-tolerant networking architecture, IRTF DTN Research Group, 2007, p. 4. [Online]. Available: https://tools.ietf.org/html/rfc4838
  7. Mukherjee, J., and Ramamurthy, B., "Communication technologies and architectures for space network and interplanetary internet," IEEE communications surveys & tutorials, Vol. 15, No. 2, 2012, pp. 881-897. https://doi.org/10.1109/SURV.2012.062612.00134
  8. Scott, K., and Burleigh, S., RFC 5050: Bundle Protocol Specification, IRTF DTN Research Group, 2007. [Online]. Available: https://tools.ietf.org/html/rfc5050
  9. Jo, J. H., Ji, S. A., Lee, B. S., and Ahn, J. Y., "Development of Space Internet Technology for Korea Lunar Exploration," Journal of Electronics and Telecommunications Trends, Vol. 32, No. 3, 2017, pp. 116-127.
  10. da Silva, A. P., Burleigh, S., and Obraczka, K., Delay and Disruption Tolerant Networks: Interplanetary and Earth-Bound-Architecture, Protocols, and Applications, CRC Press, Boca Raton, 2018, pp. 224-226.
  11. Gladden, R. E., Kazz, G. J., Burleigh, S. C., Wenkert, D., and Edwards, C. D., "Implementing next-generation relay services at mars in an international relay network," Space Operations: Inspiring Humankind's Future, Springer, Cham, 2019, pp. 3-23.