面向6G的卫星通信感知一体化网络及关键技术

摘要：通信感知一体化（ISAC）是6G网络的关键技术之一，而卫星通信感知一体化是其中的重要一环。探讨了卫星通感一体化网络及其关键技术，首先，详细分析了卫星通感一体化网络架构，包含相互协同的天基、空基和地基网络；随后，讨论了卫星通信感知一体化的关键技术，包括通感波束形成、通感波形设计、星间链路技术、星上处理技术和卫星天线技术；最后，探讨了若干未来研究方向，包括大规模多输入多输出（MIMO）通感一体化、空天地通感网络安全和新型天线架构，以推动6G卫星通感一体化技术的进步。

关键词：通信感知一体化；卫星通信；6G网络

Abstract: Integrated sensing and communication (ISAC) is one of the key technologies in 6G network, wherein satellite integrated sensing and communication is an important part. This paper discusses the satellite ISAC network and its key technologies. Firstly, the satellite ISAC network architecture is introduced in detail, including the space-based, air-based and ground-based networks that cooperate with each other. Then, the key technologies of satellite ISAC are discussed, including ISAC beamforming, ISAC waveform design, inter-satellite link technology, on-satellite processing technology, and satellite antenna technology. Finally, several future research directions are explored, including ISAC with massive multiple input multiple output (MIMO), space-air-ground ISAC network security, and new antenna structure, in order to promote the progress of 6G satellite ISAC technology.

Keywords:

integrated sensing and communication; satellite communications; 6G network