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IQ通道失衡对同时收发认知抗干扰系统的影响

黎海涛 钱一名

黎海涛, 钱一名. IQ通道失衡对同时收发认知抗干扰系统的影响[J]. 北京航空航天大学学报, 2017, 43(3): 449-456. doi: 10.13700/j.bh.1001-5965.2016.0201
引用本文: 黎海涛, 钱一名. IQ通道失衡对同时收发认知抗干扰系统的影响[J]. 北京航空航天大学学报, 2017, 43(3): 449-456. doi: 10.13700/j.bh.1001-5965.2016.0201
LI Haitao, QIAN Yiming. On the IQ imbalance at STAR based cognitive anti-jamming system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(3): 449-456. doi: 10.13700/j.bh.1001-5965.2016.0201(in Chinese)
Citation: LI Haitao, QIAN Yiming. On the IQ imbalance at STAR based cognitive anti-jamming system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(3): 449-456. doi: 10.13700/j.bh.1001-5965.2016.0201(in Chinese)

IQ通道失衡对同时收发认知抗干扰系统的影响

doi: 10.13700/j.bh.1001-5965.2016.0201
基金项目: 

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项目 2013ZC15003

详细信息
    作者简介:

    黎海涛, 男, 副教授。主要研究方向:通信系统、信号处理、网络技术等

    钱一名, 女, 硕士研究生。主要研究方向:通信与信号处理

    通讯作者:

    黎海涛, E-mail:lihaitao@bjut.edu.cn

  • 中图分类号: V243.1;V271.4

On the IQ imbalance at STAR based cognitive anti-jamming system

Funds: 

Project Supported by Program of the Science and Technology on Avionics Integration Laboratory and the Aeronautical Science Foundation of China 2013ZC15003

More Information
  • 摘要:

    针对同时收发认知抗干扰(SCAJ)系统中IQ通道失衡产生的镜像干扰降低网电空间数据链(CDL)抗干扰能力的问题,研究了IQ通道失衡的单/多频带SCAJ接收机干扰感知性能,推导出基于能量检测的IQ通道失衡接收机干扰检测概率和虚警概率,并据此提出了删除镜像信道干扰信号的有效方法。仿真结果表明,IQ通道失衡产生的镜像干扰降低了SCAJ接收机的检测概率,提出的镜像信道干扰信号删除方法可以减小IQ通道失衡的不利影响,从而提高数据链SCAJ系统性能。

     

  • 图 1  SCAJ收发信机

    Figure 1.  SCAJ transceiver

    图 2  单频带SCAJ接收机的干扰检测概率

    Figure 2.  Jamming detection probability for single-channel SCAJ receiver

    图 3  多频带SCAJ接收机的干扰检测概率

    Figure 3.  Jamming detection probability for multi-channel SCAJ receiver

    图 4  镜像干扰删除的多频带SCAJ接收机干扰检测概率

    Figure 4.  Jamming detection probability for multi-channel SCAJ receiver without image interference

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    LI H T, QIAN Y M.Simultaneous transmit and receive based cognitive anti-jamming for cyberspace data-link[J].Acta Aeronautica et Astronautica Sinica, 2016, 37(11):3476-3484(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201611025.htm
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出版历程
  • 收稿日期:  2016-03-14
  • 录用日期:  2016-05-13
  • 刊出日期:  2017-03-20

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