新型低轨通信卫星载荷设计及在轨应用  

New Satellite Payloads Configuration and In-orbit Application of LEO Communication Satellite

作　　者：张世层 张冬 王立民[2] 孙艳红[2] 王平[1] ZHANG Shiceng;ZHANG Dong;WANG Limin;SUN Yanhong;WANG Ping(School of Telecommunications Engineering,Xidian University,Xi̓an 710071,China;The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China)

机构地区：[1]西安电子科技大学通信工程学院,西安710071 [2]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《电讯技术》2024年第8期1243-1248,共6页Telecommunication Engineering

摘　　要：低轨卫星互联网系统因其低时延、高容量等特点成为国内外研究热点,被纳入新基建范畴。考虑到低轨卫星小型化、功能多样化的发展趋势,以及对现有地面终端设备的兼容性等因素,并充分发挥透明传输和再生处理的优势,提出了一种低轨通信卫星的新型载荷配置方式,用于实现星地间的多波束通信,每个波束均支持透明转发和再生处理模式的切换。针对该配置方式进行各种工作场景分析和最大工况下的能源平衡分析,结果表明该载荷配置可满足使用要求。Low Earth orbit(LEO)satellite Internet system has become a research hotspot due to its characteristics of low time delay and high capacity,and has been included in the new category of infrastructure construction.Considering the development trend of miniaturization and diversification of functions of LEO satellites,as well as the compatibility with existing ground terminal equipment,and taking full advantage of transparent forwarding and regenerative processing,the authors propose a new load configuration mode of LEO communication satellites to realize satellite-ground multi-beam communication.Each beam supports the switching of transparent forwarding and regenerative processing modes.Various work scenarios and energy balance analysis under the maximum working conditions are carried out for the configuration mode,and the results show that the load configuration can meet the use requirements.

关 键 词：低轨卫星 多波束通信 透明转发 再生处理 

分 类 号：TN927.2[电子电信—通信与信息系统]