典型文献
Two-dimensional directional modulation with dual-mode vortex beam for security transmission
文献摘要：
A two-dimensional directional modulation (DM) tech-nology with dual-mode orbital angular momentum (OAM) beam is proposed for physical-layer security of the relay unmanned aerial vehicle (UAV) tracking transmission. The elevation and azimuth of the vortex beam are modulated into the constellation, which can form the digital waveform with the encoding modula-tion. Since the signal is direction-dependent, the modulated waveform is purposely distorted in other directions to offer a security technology. Two concentric uniform circular arrays (UCAs) with different radii are excited to generate dual vortex beams with orthogonality for the composite signal, which can increase the demodulation difficulty. Due to the phase propaga-tion characteristics of vortex beam, the constellation at the desired azimuth angle will change continuously within a wave-length. A desired single antenna receiver can use the propaga-tion phase compensation and an opposite helical phase factor for the signal demodulation in the desired direction. Simulations show that the proposed OAM-DM scheme offers a security approach with direction sensitivity transmission.
文献关键词：
中图分类号：
作者姓名：
ZHU Changju;SONG Maozhong;DANG Xiaoyu;ZHU Qiuming
作者机构：
College of Electronic Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
文献出处：
引用格式：
[1]ZHU Changju;SONG Maozhong;DANG Xiaoyu;ZHU Qiuming-.Two-dimensional directional modulation with dual-mode vortex beam for security transmission)[J].系统工程与电子技术（英文版）,2022(06):1108-1118
A类：
purposely,UCAs
B类：
Two,dimensional,directional,dual,mode,vortex,security,transmission,two,DM,orbital,angular,momentum,OAM,proposed,physical,layer,relay,unmanned,aerial,vehicle,UAV,tracking,elevation,azimuth,are,modulated,into,constellation,which,can,digital,waveform,encoding,Since,signal,dependent,distorted,other,directions,technology,concentric,uniform,circular,arrays,different,radii,excited,generate,beams,orthogonality,composite,increase,demodulation,difficulty,Due,phase,propaga,characteristics,desired,angle,will,change,continuously,within,length,single,antenna,receiver,use,compensation,opposite,helical,Simulations,show,that,scheme,offers,approach,sensitivity
AB值：
0.515033
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