面向感知应用的通感一体化信号设计技术与综述

余显祥 姚雪 杨婧 陆军 崔国龙 孔令讲

余显祥, 姚雪, 杨婧, 等. 面向感知应用的通感一体化信号设计技术与综述[J]. 雷达学报, 2023, 12(2): 247–261. doi: 10.12000/JR23015
引用本文: 余显祥, 姚雪, 杨婧, 等. 面向感知应用的通感一体化信号设计技术与综述[J]. 雷达学报, 2023, 12(2): 247–261. doi: 10.12000/JR23015
YU Xianxiang, YAO Xue, YANG Jing, et al. Radar-centric DFRC signal design: Overview and future research avenues[J]. Journal of Radars, 2023, 12(2): 247–261. doi: 10.12000/JR23015
Citation: YU Xianxiang, YAO Xue, YANG Jing, et al. Radar-centric DFRC signal design: Overview and future research avenues[J]. Journal of Radars, 2023, 12(2): 247–261. doi: 10.12000/JR23015

面向感知应用的通感一体化信号设计技术与综述

doi: 10.12000/JR23015
基金项目: 国家自然科学基金(62101097, 62271126)
详细信息
    作者简介:

    余显祥,博士,副教授,研究方向包括雷达信号设计与处理、最优化理论算法以及阵列信号处理等

    姚 雪,博士,研究方向包括通感一体化信号设计与处理、多功能一体化信号设计、最优化理论算法以及阵列信号处理等

    杨 婧,博士,讲师,研究方向包括雷达信号设计与处理、最优化理论算法以及阵列信号处理等

    陆 军,中国工程院院士,研究方向包括机载综合电子信息系统、预警机技术等

    崔国龙,博士,教授,研究方向包括最优化理论和算法、雷达目标检测理论、信号多样性以及阵列信号处理等

    孔令讲,博士,教授,研究方向包括新体制雷达、统计信号处理、优化理论和算法、雷达信号处理、非合作信号处理技术和自适应阵列信号处理等

    通讯作者:

    崔国龙 cuiguolong@uestc.edu.cn

  • 责任主编:杨瑞娟 Corresponding Editor: YANG Ruijuan
  • 中图分类号: TN958

Radar-centric DFRC Signal Design: Overview and Future Research Avenues

Funds: The National Natural Science Foundation of China (62101097, 62271126)
More Information
  • 摘要: 在电子信息系统对抗中,雷达、通信、侦察机和干扰机等多种电子设备通过简单的功能叠加式配备于作战平台已经难以应对敌方的综合性电子兵器,因此,多种电子设备的综合一体化是现代战争环境装备发展的必然趋势。其中,作为战场“千里眼”和“顺风耳”的雷达和通信设备无论在硬件结构还是在信号处理方法上都具有极强的相似性,两者的有机结合具有很强的实现性。因此,通感一体化(DFRC)系统受到了广泛的关注。其中,DFRC信号设计是DFRC系统研究的关键科学问题之一,通过电磁频谱共享方式,在空域、时域以及频域等多个维度上,同时实现雷达探测和信息通信两种功能。该文对以感知功能(雷达探测功能)为主功能的DFRC信号设计方法进行了深入、系统的综述。该文简要介绍了面向战场环境的DFRC系统的相关项目,进一步讨论了DFRC信号设计的研究进展。并在最后总结全文并对未来的研究方向进行了展望。

     

  • 图  1  相关军事项目研发时序图

    Figure  1.  Timing diagram of related military projects

    图  2  通感一体化研究场景示意图

    Figure  2.  Schematic diagram of the DFRC scenario

    图  3  脉冲位置通信信息调制示意图(${I_1}$:第1个询问脉冲, ${I_2}$:第2个询问脉冲,${R_0}$:比特0的参考脉冲位置,${R_1}$:比特1的参考脉冲位置,${R_{\rm{start}}}$:开始标识脉冲,P:该位置上存在脉冲,—:该位置上没有脉冲)

    Figure  3.  Diagram of pulse position for communication information embedding (${I_1}$: the first inquiry pulse, ${I_2}$: the second inquiry pulse, ${R_0}$: reference pulse position of bit 0, ${R_1}$: reference pulse position of bit 1, ${R_{\rm{start}}}$: start identifying pulse, P: existing pulse at present position, —: without pulse at present position)

    图  4  采用不同PRI的DFRC系统

    Figure  4.  DFRC system with different PRI

    图  5  PRI捷变通信信息调制示意图

    Figure  5.  Schematic diagram of PRI agile for communication information modulation

    图  6  频谱置零调制示意图

    Figure  6.  Schematic diagram of frequency nulling for communication

    图  7  旁瓣方向ASK通信示意图

    Figure  7.  Schematic diagram of ASK communication on sidelobes

    图  8  旁瓣方向QAM通信示意图

    Figure  8.  Schematic diagram of QAM communication on sidelobes

    图  9  空间信号频谱置零调制示意图

    Figure  9.  Schematic diagram of spectral nulling for modulation of signal on specific direction

    图  10  MAJoRCom系统发射实例

    Figure  10.  The transmitting example of MAJoRCom system

    表  1  SISO系统DFRC信号设计优缺点

    Table  1.   Summary of dual-function signal design methods in SISO system

    信息调制方法优点缺点
    PRI捷变[34-36]1. 不影响信号自相关函数性能2. 通信误码率低1. 影响雷达探测的最大不模糊距离2. 通信速率较低
    基于LFM信号的PSK调制[37-40]1. 保留了与LFM信号的相似性,从而具有较好的多普勒容忍度2. 通信误码率和PSK调制相当1. 信号的自相关旁瓣较LFM信号升高,影响雷达探测性能2. 通信速率较低
    频域置零调制[43]、模糊函数置零调制[44]、全盲水印调制[45](均采用优化理论信号设计)1. 优化的探测性能函数多样,可以从不同的角度保证雷达探测性能2. 雷达性能和通信性能的权衡部分取决于优化参数设定,因而具有一定的可控可调整性1. 通信速率较低2. 通信误码率取决于信息的调制和解调方式
    下载: 导出CSV

    表  2  MIMO系统一体化信号设计优缺点

    Table  2.   Summary of dual-function signal design methods in MIMO system

    信息调制方法优点缺点
    FH信号频率、
    相位调制[46-51]
    通信误码率较低1. 信号的自相关旁瓣水平都较高2. 通信速率较低
    发射方向图的旁瓣调制[52-54,58,59,61,62]
    空域信号频谱置零[63]、空域信号
    相位调制[64](均采用优化理论
    信号设计)
    1. 优化的探测性能函数多样,可以从不同的
    角度保证雷达探测性能2. 雷达性能和通信性能的权衡部分取决于优
    化参数设定,因而具有一定的可控可调整性
    1. 通信速率较低2. 通信误码率取决于信息的调制和解调方式
    索引调制[69-76]通信速率得到了很大的提升1. 通信传输的信息序列映射关系集需较大的存储空间2. 通信误码率取决于信息的调制和解调方式
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-02-05
  • 修回日期:  2023-04-20
  • 网络出版日期:  2023-04-26
  • 刊出日期:  2023-04-28

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