摘要
由于多输入多输出(MIMO)系统具有波形、空间分集和多路复用等优势,MIMO探通一体化(DFRC)系统通过共享软硬件资源以同时实现目标探测和保密通信功能受到了极大关注。该文针对基于预编码矩阵调制的MIMO探通一体化系统,提出了基于交替方向乘子(ADMM)的一体化信号矩阵设计方法。通过用户和窃听用户参考密码本约束下最大化方向图峰值主瓣旁瓣电平比(PMSR),保证了探测方向图性能的同时防止通信信息被窃听。针对预编码矩阵通信解调问题,提出了基于交替方向惩罚(ADPM)的排序学习优化解调方法,提升了一体化波形信息解调效率。数值仿真验证了所提设计方法实现探通一体化的有效性,与已有算法相比可实现多用户通信和更高的PMSR。
Due to several advantages of the Multi-Input Multi-Output(MIMO)system in terms of waveform,space diversity,and multiplexing,the MIMO Dual Function Radar and Communication(DFRC)system,which is responsible for target detection and securing the communication by sharing the software and hardware resources,has attracted great attention.This paper addresses the MIMO DFRC system based on permutation matrix modulation and proposes a DFRC signal matrix design method based on the Alternation Direction Method of Multipliers(ADMM).By maximizing the Peak Mainlobe to Sidelobe level Ratio(PMSR)of the beampattern with the constraints of the reference codebook for both users and eavesdroppers,the system guarantees excellent detection performance along with protecting the communication information from interception.Aiming at the communication demodulation of the permutation matrix,a permutation learning demodulation method based on the Alternating Direction Penalty Method(ADPM)is proposed to improve the demodulation efficiency of the co-use waveform.Numerical simulations verify the effectiveness of the proposed methods to achieve dual function,capable of realizing multiuser communication and deriving higher PMSR compared with the existing counterparts.
作者
杨婧
余显祥
沙明辉
崔国龙
孔令讲
YANG Jing;YU Xianxiang;SHA Minghui;CUI Guolong;KONG Lingjiang(School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Beijing Institute of Radio Measurement,Beijing 100854,China)
出处
《雷达学报（中英文）》
EI
CSCD
北大核心
2023年第2期262-274,共13页
Journal of Radars
基金
国家自然科学基金(U19B2017,62101097)
长江学者奖励计划(2020M680147)
中国博士后科学基金(,2021T140096)。
关键词
探通一体化
信号矩阵设计
交替方向乘子法
排序学习解调
交替方向惩罚法
Dual Function Radar and Communication(DFRC)
Signal matrix design
Alternation Direction Method of Multipliers(ADMM)
Demodulation via permutation learning
Alternating Direction Penalty Method(ADPM)
