基于高阶相关的盲突发信号检测技术  

Blind burst signal detection technology based on high‑order correlation

作　　者：孙鹏 李保国[1] 鹿旭 孙秀娟 Sun Peng;Li Baoguo;Lu Xu;Sun Xiujuan(National University of Defense Technology,Changsha 410005,Hunan,China)

机构地区：[1]国防科技大学,湖南长沙410005

出　　处：《航天电子对抗》2023年第5期22-28,共7页Aerospace Electronic Warfare

摘　　要：盲突发信号检测在非合作通信领域具有十分重要的意义,但是传统的时域算法对于信噪比较低情况的适应性较差。提出了一种基于高阶相关的盲突发信号检测技术,利用高阶相关的方法提高了传统时域检测算法的低信噪比适应性,自适应门限算法解决了传统时域检测算法判决门限选取存在困难的问题。仿真结果表明,该算法有着较好的低信噪比适应能力,较同类型算法在低信噪比条件下有着更高的检测正确率和更低的虚警率。Blind burst signal detection is of great significance in the field of non-cooperative communication,but the traditional time domain algorithm has poor adaptability to low signal-to-noise ratio.A blind burst signal de-tection technique based on high-order correlation is proposed.It uses high-order correlation method to improve the adaptability of low signal-to-noise ratio,and its adaptive threshold algorithm solves the difficult problem of deci-sion threshold selection in traditional time domain detection algorithm.The simulation results show that the algo-rithm has good adaptability to low SNR,and has higher detection accuracy and lower false alarm rate compared to similar algorithms under low SNR conditions.

关 键 词：信号处理 突发信号 盲检测 自相关 

分 类 号：TN97[电子电信—信号与信息处理]