航空学报 > 2016, Vol. 37 Issue (11): 3476-3484   doi: 10.7527/S1000-6893.2016.0078

网电空间数据链的认知抗干扰技术

黎海涛1, 钱一名1, 方正2   

  1. 1. 北京工业大学 电子信息与控制工程学院, 北京 100124;
    2. 航空电子系统综合技术重点实验室, 上海 200241
  • 收稿日期:2015-11-20 修回日期:2016-03-14 出版日期:2016-11-15 发布日期:2016-03-21
  • 通讯作者: 黎海涛,男,博士,副教授,研究生导师。主要研究方向:通信系统、信号处理、网络技术等。Tel:010-67391625,E-mail:lihaitao@bjut.edu.cn E-mail:lihaitao@bjut.edu.cn
  • 作者简介:黎海涛,男,博士,副教授,研究生导师。主要研究方向:通信系统、信号处理、网络技术等。Tel:010-67391625,E-mail:lihaitao@bjut.edu.cn;钱一名,女,硕士。主要研究方向:通信与信号处理。E-mail:qianym0728@163.com;方正,男,博士。主要研究方向:航空电子系统。Tel:15600953388,E-mail:rockfasion183@126.com
  • 基金资助:

    航空电子系统综合技术重点实验室和航空科学基金联合资助(2013ZC15003);北京工业大学-青海民族大学合作基础研究基金

Simultaneous transmit and receive based cognitive anti-jamming for cyberspace datalink

LI Haitao1, QIAN Yiming1, FANG Zheng2   

  1. 1. College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China;
    2. Science and Technology on Avionics Integration Laboratory, Shanghai 200241, China
  • Received:2015-11-20 Revised:2016-03-14 Online:2016-11-15 Published:2016-03-21
  • Supported by:

    Science and Technology on Avionics Integration Laboratory and the Aeronautical Science Foundation of China (2013ZC15003); Joint Research Fund from Beijing University of Technology and Qinghai Nationalities University

摘要:

为了增强复杂电磁环境中网电空间数据链的抗干扰能力,提出了基于发送-感知-接收(T-S-R)工作模式的同时收发认知抗干扰(SCAJ)技术,通过在感知/接收周期内动态分配感知、接收时隙而实现实时抗干扰。针对所提同时收发抗干扰策略,研究了基于能量检测的干扰感知性能,推导出衰落信道下干扰检测概率的闭式表达,并分析了同时收发认知抗干扰系统容量。仿真结果表明,提出的同时收发认知抗干扰技术提升了网电空间数据链的干扰感知能力,且在自干扰较低时能够提高网电空间数据链系统容量。

关键词: 网电空间, 发送-感知-接收, 同时收发, 认知抗干扰, 数据链

Abstract:

In order to enhance the anti-jamming capability of cyberspace data-link in the complex electromagnetic environment, a simultaneous transmit and receive cognitive anti-jamming (SCAJ) strategy based on transmit-sense-receive mode is proposed in this paper. Real time anti-jamming can be achieved by dynamically allocating the sensing timeslot and receiving timeslot. We study the jamming sensing performance of the proposed SCAJ scheme based on energy detection. The closed expression of jamming detection probability under fading channels is derived, and the system capacity of SCAJ is analyzed. Simulation results show that the proposed SCAJ technology can enhance the jamming sensing capability of cyberspace data-link and improve the system capacity in the region with low self-interference.

Key words: cyberspace, transmit-sense-receive, simultaneous transmit and receive, cognitive anti-jamming, data-link

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