PS-G-GERT Effectiveness Evaluation Model of Link-Based GEO Satellite Communication Constellation under Poor Information Background  

作　　者：Ruirui Shao Zhigeng Fang Su Gao Sifeng Liu Weiqing You 

机构地区：[1]College of Economics and Management,Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China [2]Institute of Telecommunication Satellite China Academy of Space Technology(CAST),Beijing 100094,China [3]National Cryptography Administration of Jiangsu Province,Nanjing 210013,China

出　　处：《China Communications》2022年第12期176-196,共21页中国通信（英文版）

基　　金：the National Natural Science Foundation of China under Grant 71671091;in part by the Major Project Cultivation Fund and Major Science and Technology Achievements Development Fund of Nanjing University of Aeronautics and Astronautics under Grant NP2019104 and NC2019003 respectively;in part by the National Development and Reform Commission (High-Tech[2017]1069)

摘　　要：The effectiveness evaluation of GEO satellite communication constellation not only characterizes the communication capability of the constellation but also provides a basis for optimizing the constellation structure.Whether due to information poverty or the complexity of the system,the impact of uncertain information on the effectiveness evaluation needs to be considered to ensure the accuracy of the evaluation results.To address this issue,this paper develops a model for evaluating the GEO satellite communication constellation’s effectiveness in the context of poor information.Firstly,it analyses the GEO satellite communication constellation plus system based on communication links with an in-depth analysis of the constellation 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 connotation,the algorithm formula of communication link effectiveness and its importance is derived,and the constellation effectiveness and variance are found.Finally,the model constructed in this paper is used to evaluate the effectiveness of a GEO satellite communication constellation,further verifying the accuracy and validity of the model.Through comparative analysis,it is shown that the model can not only solving the effectiveness of the constellation but also analyzing the variation of its effectiveness.It lays a theoretical foundation for the analysis and optimization of the GEO satellite communication constellation effectiveness.

关 键 词：poor information graphical evaluation and review technique(GERT) plus system(PS) effectiveness evaluation 

分 类 号：TN927.2[电子电信—通信与信息系统]