面向低轨卫星星座的多星协作信号检测技术  

Multi-Satellite Cooperative Signal Detection for Low Earth Orbit Constellations

作　　者：王虎威 叶能[1] 安建平[1] WANG Huwei;YE Neng;AN Jianping(Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学,中国北京100081

出　　处：《中兴通讯技术》2021年第5期12-17,共6页ZTE Technology Journal

基　　金：国家自然科学基金(62101048、62071038、61771051、61971038)。

摘　　要：低轨(LEO)卫星通信因其时延低、路损小且单星成本低等优势,近年来已成为全球通信领域的研究热点。面向未来数千乃至数万颗规模的LEO卫星星座,多星协作信号处理技术可以充分运用多颗卫星的信号收发与处理能力,挖掘低轨卫星星座的规模优势,是使能未来6G空天地一体泛在互联的关键技术。分析了多星协作信号检测技术的典型技术路线和实现方案,并探寻多星协作虚拟阵列信号检测技术在未来大规模LEO卫星星座中的应用前景。Low Earth Orbit(LEO)satellite communications have become a research hotspot in the communication field in recent years due to its low latency,small path loss,and low cost platform.With thousands to tens of thousands of satellites in the future LEO constel-lations,cooperative signal processing technology can tap the scale advantages of the mega constellation by utilizing the distributed transceiving and processing capability of multiple satellites,which makes it a promising technology to enable ubiquitous access in 6G.The recent research progress related to multi-satellite cooperative signal detection technology is analyzed,concerning both the technical routes and the implementation sce-narios.Besides,the application prospect of multi-satellite cooperation technology based on the concept of the virtual array in LEO constellations is also explored.

关 键 词：低轨卫星星座 多星协作 虚拟阵列 信号检测 

分 类 号：TN911.23[电子电信—通信与信息系统] TN927.2[电子电信—信息与通信工程]