CAJ | 학술논문

随着无线通信技术的蓬勃发展，频谱利用率和系统容量已经趋近香农极限。轨道角动量作为一项新型技术，拥有高效频谱利用率和抗干扰能力，引起了国内外学术界的关注。本文首先介绍了轨道角动量的应用与无线通信系统的基本原理；其次综述了轨道角动量在相关领域的研究进展，并对轨道角动量产生的关键技术进行深入分析，以及对现有的轨道角动量接收方法进行梳理总结；最后在目前已有研究的基础上，展望并提出了未来轨道角动量在无线通信研究及应用中需要重点解决和关注的一些突出问题，包括携带轨道角动量涡旋电磁波的产生，不同模态轨道角动量电磁波相互干扰的抑制，轨道角动量模态的编码方式以及不同模态涡旋电磁波的分离与检测等方面。
수착무선통신기술적봉발발전，빈보이용솔화계통용량이경추근향농겁한。궤도각동량작위일항신형기술，옹유고효빈보이용솔화항간우능력，인기료국내외학술계적관주。본문수선개소료궤도각동량적응용여무선통신계통적기본원리；기차종술료궤도각동량재상관영역적연구진전，병대궤도각동양산생적관건기술진행심입분석，이급대현유적궤도각동량접수방법진행소리총결；최후재목전이유연구적기출상，전망병제출료미래궤도각동량재무선통신연구급응용중수요중점해결화관주적일사돌출문제，포괄휴대궤도각동량와선전자파적산생，불동모태궤도각동량전자파상호간우적억제，궤도각동량모태적편마방식이급불동모태와선전자파적분리여검측등방면。
With the rapid development of wireless communication technology,spectrum efficiency and system capacity has been close to the Shannon limit.As a new technology,the orbital angular momentum (OAM)has attractive properties of high spec-trum utilization and anti-interference,arousing widespread concerns of domestic and foreign academics.Firstly,this paper reviews the application of OAM and the basic principle of wireless communication system.Then,it puts emphasis on the research progress of OAM in the related fields,mainly on the in-depth analysis for key technologies of generating OAM and the summary in existing method for receiving OAM.Finally,it looks into the future and proposes some prominent issues to be solved and focused on wireless communication research and application of OAM,including generation and reception of electromagnetic vortex waves carrying OAM,the suppression of the mutual interference of the OAM electromagnetic vortex waves in different modes,coding of OAM and the separation and detection of vortex waves carrying OAM in different modes and so on.