CCSDS标准信道码技术

Channel Coding Technology of Standard CCSDS

随着太空资源的研究与开发,深空通信技术受到越来越广泛的重视。空间数据系统咨询委员会(CCSDS)逐步为深空通信中遥控遥测及高级在轨系统(AOS)制定了一系列推荐性标准。介绍了深空通信信道研究的意义,其信道特点决定了低信噪比条件下信道码对深空通信可靠性的重要作用。分析了该标准中各类信道码技术,探讨了信道码性能,为该标准的工程应用提供参考。

With the research and development of outer space resources, a deep space communica-tion technology has attracted more and more attention. Consultative Committee for Space Data System （CCSDS） establishes a series of advice standards for the advanced orbiting system （AOS） and telemetry and remote control in the deep space communication. The significance of the chan-nel research in the deep space communication is proposed. Its channel feature determines an im-portant effect on the channel codes to the reliability of the deep space communication under the low signal noise ratio （SNR） condition. Several channel code technologies in the standards are an-alyzed and their performances are discussed. The analysis provides a reference for the engineering application of the standards.