本文概述了K波段卫星通信系统发展的优越性和巨大潜力。简单介绍了该波段卫星通信系统的衰落影响因素 ,提出了三种抗衰落对策 ,位置分集、自适应资源共享技术、自适应调制技术 ,并加以重点讨论。同时也分析了各种抗衰落技术的优势及存在问题。 This article outlines the advantages and great potential of the development of the K-band satellite communications system. This paper briefly introduces the factors affecting the fading of the band satellite communication system, and puts forward three anti-fading strategies, location diversity, adaptive resource sharing techniques and adaptive modulation techniques, and focuses on them. At the same time, the advantages and problems of various anti-fading technologies are also analyzed.