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采用LDPC码方案的战术数据链系统

李航 陈炜

李航, 陈炜. 采用LDPC码方案的战术数据链系统[J]. 北京航空航天大学学报, 2011, 37(11): 1400-1403,1409.
引用本文: 李航, 陈炜. 采用LDPC码方案的战术数据链系统[J]. 北京航空航天大学学报, 2011, 37(11): 1400-1403,1409.
Li Hang, Chen Wei. Tactical data link system with low-density parity-check code scheme[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1400-1403,1409. (in Chinese)
Citation: Li Hang, Chen Wei. Tactical data link system with low-density parity-check code scheme[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1400-1403,1409. (in Chinese)

采用LDPC码方案的战术数据链系统

详细信息
  • 中图分类号: TN 919

Tactical data link system with low-density parity-check code scheme

  • 摘要: 战术数据链系统能够提高部队信息化作战能力,其中信道编码技术是保证消息传输可靠性的关键技术之一.构建了一种新的战术数据链系统,系统采用低密度奇偶校验(LDPC,Low-Density Parity-Check)码方案,LDPC码是适用于传输可靠性要求高的通信系统的新型码组.介绍了LDPC码方案中的和积算法,描述了系统的传输模型,分析了系统在固定频率和加性白色高斯噪声(AWGN,Additive White Gaussian Noise)信道条件下的链路性能.利用计算机进行蒙特卡罗仿真,结果表明:在AWGN信道和瑞利衰落信道下,LDPC编码方案可以有效地降低数据链系统的误比特率,取得比采用里德·所罗门编码的联合战术信息分发系统更好的误码性能.LDPC码作为信道编码技术的备选码组,为进一步提高战术数据链的可靠性提供了一种解决方案.

     

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出版历程
  • 收稿日期:  2010-07-14
  • 网络出版日期:  2011-11-30

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