The effectiveness evaluation of GEO satel-lite communication constellation not only character-izes the communication capability of the constellation but also provides a basis for optimizing the constel-lation structure.Whether due to information poverty or the complexity of the system,the impact of uncer-tain information on the effectiveness evaluation needs to be considered to ensure the accuracy of the evalua-tion results.To address this issue,this paper develops a model for evaluating the GEO satellite communica-tion constellation's effectiveness in the context of poor information.Firstly,it analyses the GEO satellite com-munication constellation plus system based on com-munication links with an in-depth analysis of the con-stellation structure.Secondly,an equivalent transfer function algorithm based on the characteristic function and transfer probability is proposed with the help of graphical evaluation and review technique.Then,by analyzing the communication link importance conno-tation,the algorithm formula of communication link effectiveness and its importance is derived,and the constellation effectiveness and variance are found.Fi-nally,the model constructed in this paper is used to evaluate the effectiveness of a GEO satellite commu-nication constellation,further verifying the accuracy and validity of the model.Through comparative anal-ysis,it is shown that the model can not only solving the effectiveness of the constellation but also analyz-ing the variation of its effectiveness.It lays a theoreti-cal foundation for the analysis and optimization of the GEO satellite communication constellation effective-ness.

Ruirui Shao;Zhigeng Fang;Su Gao;Sifeng Liu;Weiqing You

College of Economics and Management,Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China;Institute of Telecommunication Satellite China Academy of Space Technology(CAST),Beijing 100094,China;National Cryptography Administration of Jiangsu Province,Nanjing 210013,China

中国通信（英文版）

[1]Ruirui Shao;Zhigeng Fang;Su Gao;Sifeng Liu;Weiqing You-.PS-G-GERT Effectiveness Evaluation Model of Link-Based GEO Satellite Communication Constellation under Poor Information Background)[J].中国通信（英文版）,2022(12):176-196

stellation,conno

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