| LDPC编码跳频通信系统中的迭代抗干扰抑制算法研究 |
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| 引用本文： | 吴晓富,张邦宁,刘榕,崔龙,黄忠虎. LDPC编码跳频通信系统中的迭代抗干扰抑制算法研究[J]. 军事通信技术, 2008, 0(1) |
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| 作者姓名： | 吴晓富 张邦宁 刘榕 崔龙 黄忠虎 |
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| 作者单位： | 解放军理工大学通信工程学院卫星通信系;总参谋部第61研究所;解放军理工大学理学院基础电子学系;解放军理工大学通信工程学院电子信息工程系; |
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| 摘 要： | 文中讨论 LDPC 码在抗干扰跳频通信中的应用问题。在接收机几乎没有任何信道先验知识(包括信噪比/信干扰比,部分频带干扰信息等)的假设下,推导了一种新的鲁棒检测算法。该鲁棒检测算法与最小和迭代解码算法结合可成功用于 LDPC 码的有效接收,性能逼近理想不可实现条件下的最佳检测算法。
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| 关 键 词： | 跳频 低密度校验码 最小和译码算法 部分频带干扰 |
On Iterative Interference Suppression for LDPC Coded FH-SS Systems |
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| WU Xiao-fu ZHANG Bang-ning LIU Rong CUI Long,HUANG Zhong-hu. On Iterative Interference Suppression for LDPC Coded FH-SS Systems[J]. Journal of Military Communications Technology, 2008, 0(1) |
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| Authors: | WU Xiao-fu ZHANG Bang-ning LIU Rong CUI Long HUANG Zhong-hu |
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| Affiliation: | WU Xiao-fu~1 ZHANG Bang-ning~1 LIU Rong~2 CUI Long3,HUANG Zhong-hu1.Department of Satellite Communication ICE,PLAUST,Nanjing 210007,China,2.The 61st Research Institute of PLA General Staff Headquarters,Beijing 100039,3.Department of Basic Electronics IS,Nanjing 211101,4.Department of Electronic Information Engineering ICE |
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| Abstract: | Iterative processing techniques for LDPC coded FH-SS systems without memory were discussed.Under the practical assumption of no any knowledge about signal-to-noise ratio/ signal-to-interference ratio,a new robust estimation scheme was derived for retrieving the chan- nel log-likelihood ratios.The robust estimator,combined with min-sum algorithm,proved to be very effective for iterative decoding of turbo/LDPC coded FH-SS systems without memory. |
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| Keywords: | frequency hopping Low-Density Parity-Check (LDPC) codes min-sum decoding partial-band interference |
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