计算机工程 ›› 2019, Vol. 45 ›› Issue (10): 155-159.doi: 10.19678/j.issn.1000-3428.0052390

• 安全技术 • 上一篇    下一篇

基于分组码的结构性数据干扰检测方法

逄天洋1, 李永贵2, 牛英滔2, 夏志1, 韩晨1   

  1. 1. 陆军工程大学 通信工程学院, 南京 210000;
    2. 国防科技大学, 南京 210000
  • 收稿日期:2018-08-13 修回日期:2018-10-09 出版日期:2019-10-15 发布日期:2018-10-17
  • 作者简介:逄天洋(1993-),男,硕士研究生,主研方向为通信抗干扰技术;李永贵,研究员;牛英滔,高级工程师、博士;夏志、韩晨,硕士研究生。
  • 基金项目:
    江苏省自然科学基金(BK20151450)。

Structural Data Interference Detection Method Based on Block Code

PANG Tianyang1, LI Yonggui2, NIU Yingtao2, XIA Zhi1, HAN Chen1   

  1. 1. School of Communication Engineering, Army Engineering University, Nanjing 210000, China;
    2. National University of Defense Technology, Nanjing 210000, China
  • Received:2018-08-13 Revised:2018-10-09 Online:2019-10-15 Published:2018-10-17

摘要: 为对结构性数据的高效干扰进行检测,以线性分组码为研究对象,在经典能量检测算法的噪声模型中加入恶意干扰信号,推导二元假设模型中检验统计量的数学表达式。在此基础上,以虚警率与漏检率之和最小为准则,提出一种基于最优检测门限的能量检测算法。仿真结果表明,该算法在低干信比条件下依然能够检测出高效干扰,且检测概率高于基于CFAR门限理论的检测算法。

关键词: 线性分组码, 结构性数据, 能量检测, 最优门限, 干扰检测

Abstract: In order to detect the high-efficiency interference of structural data,the linear block code is taken as the research object,and malicious interference signals are added to the noise model of classical energy detection algorithm to deduce the mathematical expression of test statistics in binary hypothesis model.On this basis,taking the minimum sum of false alarm rate and missed detection rate as the criterion,an energy detection algorithm based on optimal detection threshold is proposed.Simulation results show that the algorithm can detect high-efficiency interference at a low signal-to-interference ratio,and the detection probability is higher than that of the algorithm based on CFAR threshold theory.

Key words: linear block code, structural data, energy detection, optimal threshold, interference detection

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