卫星光网络关键技术研究

Research on the Key Technologies of Optical Satellite Network

由于传统卫星通信中射频链路的不足以及光通信在容量、抗干扰及保密等多方面的优势,利用激光作为链路的卫星光通信受到了广泛关注.介绍了国内外卫星光通信的发展现状,依据空间信息网络协议体系结构,从星间激光链路、信道编码和网络层三方面出发,初步探讨了卫星光网络体系结构,研究了其关键技术,提出了动态虚拓扑的路由选择算法和波分复用波长分配算法.

Optical satellite communications based on laser hnk has been drawing wider attention in light of the disparities between the disadvantages of RF links in traditional satellite communi- cations and the advantages in capacity, anti-interference and encryption of optical communica- tions. We give an introduction to the status quo of the researches in optical satellite communica- tions both home and abroad. We have made a study of the structure of optical satellite network in terms of inter-satellite laser links, channel coding and network and the key technologies. Routing algorithm of dynamic virtual topology and WDM wavelength assignment algorithm are proposed.