面向阵列接收机的转发式欺骗干扰性能评估  

Performance evaluation of forwarding spoofing for array receivers

作　　者：韦世鹏 袁木子 肖伟 倪少杰[1] WEI Shipeng;YUAN Muzi;XIAO Wei;NI Shaojie(School of Electronic Science,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,长沙410005

出　　处：《空天预警研究学报》2022年第5期351-357,共7页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

基　　金：国家自然科学基金资助项目(62003354);区域创新发展联合基金资助项目(U20A0193)。

摘　　要：为研究转发式欺骗干扰的性能,提出了一种面向阵列接收机的转发式欺骗干扰性能评估方法.基于阵列接收机对直接转发和基于伪码估计转发式欺骗信号的接收模型,首先推导分析了两种转发式欺骗信号的欺信比,然后根据欺信比分析对比了两种转发式欺骗信号的捕获欺骗性能,最后进行了仿真验证.仿真结果表明:在接收机输出欺骗信号最大功率受限为-143dBW情况下,与直接转发式相比,基于伪码估计转发式欺骗信号的欺信比更高,在20 dB的干扰源接收天线增益下分别高1.9 dB和8.7 dB;为达到90%的捕获欺骗成功,四路基于伪码估计转发式欺骗,在两种不同捕获搜索方式下,需要的干扰源接收天线增益分别为21.2 dB和20.2 dB,相比直接转发式欺骗分别小13.2 dB和12.2 dB.In order to study the performance of forwarding spoofing,this paper presents a method to evaluate the performance of forwarding spoofing for array receiver.Based on the receiving models of direct forwarding spoofing signals and pseudo-code estimation forwarding spoofing signals of array receiver,the paper first deduces and analyzes the deception-signal ratio of the two kinds of forwarding spoofing signals,and then analytically compares the deception capture performance of the two kinds of forwarding spoofing signals according to the deception-signal ratio.Finally,simulation verification is carried out.The simulation results are shown as follows:When the maximum power limit of spoofed signal is-143 dBW,the spoofed signal based on pseudo-code estimation has a higher deception-signal ratio than that based on direct forwarding,which is 1.9 dB and 8.7 dB higher,respectively,in the case of receiving antenna gain of 20 dB interference source.In order to achieve 90%successful deception capture,the four-way pseudo-code-based forwarding spoofing,in the two different capture search modes,requires antenna gain of the interference source to be 21.2 dB and 20.2 dB,respectively,which is 13.2 dB and 12.2 dB smaller than that of the direct forwarding spoofing.

关 键 词：转发式欺骗干扰 授权伪码估计 误码率 欺信比 捕获欺骗成功率 

分 类 号：TN972.3[电子电信—信号与信息处理]