| 一种改进的TPC混合译码算法 |
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| 引用本文： | 韩明,任凯,宁高利. 一种改进的TPC混合译码算法[J]. 导弹与航天运载技术, 2021, 0(2): 111-115. DOI: 10.7654/j.issn.1004-7182.20210223 |
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| 作者姓名： | 韩明 任凯 宁高利 |
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| 作者单位： | 北京宇航系统工程研究所,北京,100076 |
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| 摘 要： | 为简化Turbo乘积码(Turbo Product Code,TPC)译码处理过程,缩短接收机译码时延,针对航天测控领域应用广泛的子码为扩展汉明码的TPC码,提出一种改进的混合译码算法.改进算法以传统混合译码算法为基础,把SISO和HIHO两种译码器相结合,优化软输入输出(Soft In Soft Out,SISO)中...
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| 关 键 词： | TPC码 经典SISO译码 混合译码 改进算法 |
An Improved Hybrid Decoding Algorithm for Turbo Product Codes |
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| Han Ming,Ren Kai,Ning Gao-li. An Improved Hybrid Decoding Algorithm for Turbo Product Codes[J]. Missiles and Space Vehicles, 2021, 0(2): 111-115. DOI: 10.7654/j.issn.1004-7182.20210223 |
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| Authors: | Han Ming Ren Kai Ning Gao-li |
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| Affiliation: | (Beijing Institute of Astronautical Systems Engineering,Beijing 100076) |
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| Abstract: | An improved hybrid decoding algorithm is proposed to simplify the TPC decoding process and shorten decoding delay of the receiver for extended hamming code,widely used in aerospace track telemetry and control field.Based on the traditional hybrid decoding algorithm,the improved algorithm combines both SISO and HIHO decoder.The calculation of the extrinsic information in SISO algorithm is optimized and the special error patterns in HIHO algorithm can be corrected.An adaptive switching from SISO to HIHO by introducing the switching threshold is implemented based on the reliability of the TPC words.Simulation shows when bit error rate is 10-5,the complexity of the improved algorithm is about half of the original hybrid algorithm for TPC(64,57)2,without weakening decoding performance.It will be helpful for miniaturization and localization of aerospace TT&C equipment that the improved algorithm is put forward and applied. |
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| Keywords: | turbo product code classical SISO decoding hybrid decoding improved algorithm |
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