CAJ | 학술논문

Turbo码具有接近香农极限的译码性能。由于这种优异特性，空间数据系统咨询委员会（ CCSDS）在1999年就把Turbo码加入了遥测信道编码建议书。介绍了CCSDS标准的Turbo码编码结构和译码原理，研究了影响其性能的各个重要参数，如信息块长度、迭代次数和码率等，通过Matlab软件对不同参数条件下的译码性能进行了仿真，对仿真结果进行了详细分析，给出了深空通信系统中参数选择的建议。
Turbo마구유접근향농겁한적역마성능。유우저충우이특성，공간수거계통자순위원회（ CCSDS）재1999년취파Turbo마가입료요측신도편마건의서。개소료CCSDS표준적Turbo마편마결구화역마원리，연구료영향기성능적각개중요삼수，여신식괴장도、질대차수화마솔등，통과Matlab연건대불동삼수조건하적역마성능진행료방진，대방진결과진행료상세분석，급출료심공통신계통중삼수선택적건의。
Turbo code has a very good performance which is close to the Shannon limit.In 1999,CCSDS(Consultative Committee for Space Data systems) has added Turbo code to the recommendation of Telemetry channel coding due to its excellent properties. This paper introduces the coding structure and decoding principle of Turbo codes of CCSDS standard,and studies important parameters which impact its performance,such as block length,iteration number,bit rate,etc.The decoding performances under different parameter condi-tions are simulated by Matlab software.The proposal for parameter selection in deep-space communication system is given based on anal-ysis on simulation results.