| 基于LDPC码的跳频抗干扰性能 |
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| 引用本文： | 薛明浩,马林华,林志国,野晓东.基于LDPC码的跳频抗干扰性能[J].计算机应用,2011,31(8):2037-2039. |
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| 作者姓名： | 薛明浩 马林华 林志国 野晓东 |
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| 作者单位： | 1. 空军工程大学 工程学院，西安710038
2. 94537部队,河南 许昌461132 |
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| 基金项目： | 陕西省电子信息系统综合集成重点实验室基金资助项目 |
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| 摘 要： | 为了提高跳频通信的抗干扰性能，将低密度奇偶校验(LDPC)码与跳频通信相结合。通过对编码算法中的“贪婪算法”的复杂度简化和带偏移量的分层量化译码(LBP-OMS)算法的应用，提高了码字的纠错性能。实验表明,当某些频带受强噪声干扰时，改进后的信道编译码方法提高了跳频通信的抗干扰能力。
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| 关 键 词： | 跳频通信 宽带阻塞干扰 低密度奇偶校验码 贪婪算法 带偏移量的分层量化译码算法 |
| 收稿时间： | 2011-02-17 |
| 修稿时间： | 2011-04-21 |
Anti-jamming performance of frequency-hopping based on LDPC code |
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| XUE Ming-hao,MA Lin-hua,LIN Zhi-guo,YE Xiao-dong.Anti-jamming performance of frequency-hopping based on LDPC code[J].journal of Computer Applications,2011,31(8):2037-2039. |
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| Authors: | XUE Ming-hao MA Lin-hua LIN Zhi-guo YE Xiao-dong |
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| Affiliation: | 1. Engineering College, Air Force Engineering University, Xi'an Shaanxi 710038, China
2. Unit 94537, Xuchang Henan 461132, China |
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| Abstract: | Frequency-hopping communication was combined with the Low-Density Parity-Check (LDPC) code to improve anti-jamming performance of frequency hopping communications. By simplifying the complexity of coding algorithm in the “greedy algorithm”, an offset layered quantization decoding called Layered Belief Propagation-Offset Min-Sum (LBP-OMS) algorithm was applied to improve the performance of error correction code words. The simulation results show that when certain frequency bands are covered by strong noise, the anti-interference ability of broadband frequency-hopping communications is improved by using the improved channel coding method. |
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