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微波与激光融合的卫星互联网信道特性研究

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单一地面移动通信、卫星通信方式已难以满足新时代通信大容量、高速率传输需求.微波通信与激光通信深度融合的天地一体化卫星互联互通网络通过激光通信技术提高星间链路的通信速率与容量,通过Q/V频段微波通信技术提高星地链路的可用带宽,解决Ka、Ku频段频谱资源饱和问题,提高频谱效率.本文研究微波星地链路与激光星间链路信道特性,对通信链路进行建模仿真,分析信遮挡效应、多普勒频移、自由空间传播损耗与大气损耗等影响因素,为微波与激光融合的卫星互联网链路设计提供重要参考.
Research of Micro wave and Laser Fusion for Satellite Internet Channel Characterization
Single ground mobile communication and satellite communication method have met difficulties in meeting the demand for large-capacity and high-speed transmission of communication in the new era.The interconnection satellite network of space and earth through the deep integration of microwave com-munication and laser communication can improve the communication rate and capacity of inter-satellite link through laser communication technology,improve the available bandwidth of star-earth link through Q/V band microwave communication technology,and solve the problem of saturation of spectrum re-sources in Ka and Ku bands,which can improve the efficiency of the frequency spectrum.We investigate channel characteristics of microwave satellite-earth link and laser interplanetary link.Typical influence factors such as blocking effect,Doppler shift,free-space propagation loss and atmospheric loss are simu-lated in link modeling channel,which can provide important references for the design of satellite networks for microwave and laser fusion.

satellite-earth linkinter-satellite linksatellite networkchannel simulation

夏兆宇、林玉洁、陈浩、胡春源、吴梓豪

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北京理工大学信息与电子学院,北京 100081

星地链路 星间链路 卫星互联网 信道仿真

国家重点研发计划国家自然科学基金

2023YFF071740462001030

2024

中国电子科学研究院学报
中国电子科学研究院

中国电子科学研究院学报

影响因子:0.663
ISSN:1673-5692
年,卷(期):2024.19(3)