无线电工程Issue(12)：1-3,3.DOI:10.3969/j.issn.1003-3106.2014.12.01
极低码率Turbo码及其应用研究
Research on Low Rate Turbo Code and Its Applications
摘要
Abstract
For the purpose of transmission with very low signal to noise ratios,the structure of the encoder of a low rate turbo code is presented in this paper.The corresponding decoding algorithm is analyzed,and the performance of this coding scheme is obtained by simulations.This paper presents the application method of low rate Turbo code in shortwave communications or meteor burst communica⁃tions systems is proposed in high bandwidth and complex channel environment. Comparisons are conducted between the application of low rate turbo code and the concatenating scheme of high rate turbo code and spectrum spread technique.The study proves that low rate Turbo code has better performance than traditional ones.With low rate turbo code,the application of adaptive modulation and coding technique can be extended to low signal to noise scenarios.关键词
Turbo码/码率/自适应调制编码/混合差错重传Key words
Turbo code/code rate/adaptive modulation & coding/HARQ分类
信息技术与安全科学引用本文复制引用
胡东伟..极低码率Turbo码及其应用研究[J].无线电工程,2014,(12):1-3,3.基金项目
国家部委基金资助项目。 （）
