非合作跳频信号的动态信道化接收方法研究  

Research into Dynamic Channelized Receiving Method of Non-cooperative Frequency Hopping Signals

作　　者：米文辉 潘子豪 吴彬彬 郭道省 MI Wen-hui;PAN Zi-hao;WU Bin-bin;GUO Dao-xing(Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]中国人民解放军陆军工程大学,江苏南京210007

出　　处：《舰船电子对抗》2022年第5期36-43,共8页Shipboard Electronic Countermeasure

基　　金：江苏省自然科学基金项目,项目编号:BK20191328。

摘　　要：传统的扫频式接收、模拟信道化接收、多相滤波信道化接收等方法在非合作通信中难以实现对宽带高速跳频信号跳频集的准确接收,且在信噪比较低时易产生漏检和误检。在现有信道化接收技术的基础上,设计了一种基于自相关累积量门限更新的非均匀动态信道化的接收方法,在没有任何先验信息的情况下实现了对跳频信号频率集的接收重构。最后,理论分析和计算机仿真表明,与其他算法相比,该方法在低信噪比下仍具有良好的盲检测接收性能,且降低了硬件资源的需求。It’s difficult to achieve the accurate reception of frequency hopping set of broadband highspeed frequency-hopping signals in non-cooperative communication by traditional methods such as sweep-frequency reception,analog channelized reception and polyphase filter channelized reception,etc.,and it’s easy to generate leak detection and false detection when the signal noise ratio(SNR)is low.On the basis of existing channelized receiving technologies,this paper designs a non-uniform dynamic channelized receiving method based on the autocorrelation cumulant threshold update,realizes the reception and reconstruction of frequency set of frequency-hopping signals without any prior information.Finally,theoretical analysis and computer simulation show that the proposed method still has good performance of blind detection and reception at low SNR compared with other algorithms,and reduces the requirement of hardware resources.

关 键 词：跳频 余弦调制 滤波器组 动态信道化 自适应门限 信号检测 

分 类 号：TN911.25[电子电信—通信与信息系统]