面向星地认知通信的频谱感知:研究进展、挑战与展望  

Spectrum Sensing for Satellite-terrestrial Cognitive Communications:Research Progress,Challenges and Prospects

作　　者：关涛 叶淦华 魏鹏 崔璨 陆锐敏 GUAN Tao;YE Ganhua;WEI Peng;CUI Can;LU Ruimin(The Sixty-third Research Institute,National University of Defense Technology,Nanjing 210007,China)

机构地区：[1]国防科技大学第六十三研究所,南京210007

出　　处：《宇航学报》2025年第1期1-16,共16页Journal of Astronautics

摘　　要：以星地认知通信实现星地频谱认知共享为应用背景,对卫星通信频谱感知技术的研究现状、问题、未来发展进行了详细阐述与分析。区别于相关领域的综述文章一般以技术为侧重点划分类别的思路,首先结合卫星通信系统的具体特点和特殊需求,提出了面向卫星通信频谱感知的二元假设检验模型。然后依据星地认知通信的不同应用场景分类进行分析,将应用场景划分为两大类共包含6个子场景类和一个星间链路感知特殊子场景,针对每一子类对应场景下的技术特点和发展情况展开了详细阐述。最后,结合所提二元假设检验模型,针对面向工程实现的若干问题和未来发展中的若干研究方向进行了探讨,以期为相关领域的研究提供有价值的参考。In the context of satellite-terrestrial cognitive communications,a comprehensive survey of the research advancements,challenges,and future prospects in satellite communication spectrum sensing is presented.Unlike typical review articles that primarily classify methods based on specific techniques,this survey accounts for the unique characteristics and requirements of satellite communication systems.A novel binary hypothesis test model is introduced to characterize the problem of satellite communication spectrum sensing.The scenarios are categorized into two major groups,which encompass six subcategories and an additional special subcategory for inter-satellite link sensing,based on various application scenarios of satellite-terrestrial cognitive communications.Each scenario type is then thoroughly discussed.Lastly,in relation to the proposed binary hypothesis test model,several issues concerning engineering implementations and potential research directions are addressed,with the aim of offering valuable insights for researchers in the field.

关 键 词：卫星通信 频谱感知 频谱共享 认知通信 

分 类 号：V474.2[航空宇航科学与技术—飞行器设计] TN927[电子电信—通信与信息系统]