CCSDS无损数据压缩算法在分包遥测中的应用及其FPGA实现  

Application and FPGA Implementation of CCSDS Lossless Data Compression in Packet Telemetry

作　　者：黄佳[1] 曹金[1] 陈夏[1] 

机构地区：[1]上海微小卫星工程中心,上海200210

出　　处：《遥测遥控》2014年第2期43-47,共5页Journal of Telemetry,Tracking and Command

基　　金：中科院支撑技术项目(615010201)

摘　　要：对CCSDS推荐的无损数据压缩算法（Rice算法）进行研究,介绍Rice算法的基本原理与编码方法以及如何应用到航天测控分包遥测体制中.通过优化Rice算法的FPGA实现,对实际某卫星遥测数据进行压缩试验,压缩比在1.4～2.1之间,对后续研制型号设计遥测存储、传输方案有一定指导意义.The principle of CCSDS recommended lossless data compression algorithm （Rice algorithm）is introduced, and how to use this algorithm in the packet telemetry system is also explained. Then the FPGA implementation process of this algorithm is analyzed and improved. At last, a large amount of compression-study has been done on practical spacecraft telemetry data. The compression performance, expressed as compression rate, is between 1.4 and 2.1. The result has important reference value for the design of other spacecraft telemetry scheme.

关 键 词：分包遥测 CCSDS建议 无损数据压缩 FPGA实现 

分 类 号：TN927.2[电子电信—通信与信息系统]