AEROSPACE CHINA

中国航天科技集团有限公司主管

中国航天系统科学与工程研究院主办

ISSN 1671-0940

CN 11-4673/V

导航

AEROSPACE CHINA ›› 2017, Vol. 18 ›› Issue (4): 19-25.doi: 10.3969/j.issn.1671-0940.2017.04.003

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Intelligent Space All-Optical Network Technology

  

  • 出版日期:2017-12-25 发布日期:2019-11-28

Intelligent Space All-Optical Network Technology

  1. State Key Laboratory of Space-Ground Integrated Information Technology, Beijing Institute of Satellite Information Engineering, Beijing 100095
  • Online:2017-12-25 Published:2019-11-28
  • About author:DONG Tao (1975- ), received the B.S. and Ph. D degrees in electronics science and technology from Beijing Institute of Technology in 1999 and 2004, respectively. He is currently a professor at State Key Laboratory of Space-Ground Integrated Information Technology, Beijing Institute of Satellite Information Engineering. His research interests include optical phased array, free space optical communications, and space optical networks.

Abstract: Microwave transmission in a space network is greatly restricted due to precious radio spectrum resources. To meet the demand for large-bandwidth, global seamless coverage and on-demanding access, the Space All-Optical Network (SAON) becomes a promising paradigm. In this paper, the related space optical communications and network programs around the world are first briefly introduced. Then the intelligent Space All-Optical Network (i-SAON), which can be deemed as an advanced SAON, is illustrated, with the emphasis on its features of high survivability, sensing and reconfiguration intelligence, and large capacity for all optical load and switching. Moreover, some key technologies for i-SAON are described, including the rapid adjustment and control of the laser beam direction, the deep learning-based multi-path anti-fault routing, the intelligent multi-fault diagnosis and switching selection mechanism, and the artificial intelligence-based spectrum sensing and situational forecasting.