Research On The Effectiveness Evaluation Technology For Constellation Satellite Communication System Based On ADC Modeling

In recent years,fast development of terrestrial cellular wireless networks have greatly facilitated communication.However,about 98%of the earth surface is infeasible to be covered by terrestrial wireless networks as a result of the geographical factor.Therefore there was no necessary infrastructure to transfer information in rural areas.Fortunately,the constellation satellite communication system is a facile solution to provide seamless global coverage,as a complementarity of terrestrial wireless networks.The constellation satellite communication system is very complicated and highly invested. Many thctors have influenced the designing of the constellation satellite communication system. Scientific and reasonable effectiveness evaluation is helpful to synthesize all of these factors in system designing and to support scientific decision-making.In this background,we have explored the effectiveness evaluation methods for the constellation satellite communication system.Firstly,we introduced the procedure and items of effectiveness evaluation.It is emphasizes that we generalized the establishing principles of the measurement architecture of the constellation satellite communication system and discussed the methods of obtaining and disposing of the evaluation information.Then,we analyzed and compared several classical effectiveness evaluation methods and chose ADC method and AHP method to assess the effectiveness of the constellation satellite communication system.By referencing to the conclusion of communication network reliability research,we solved the problem that the system failure probability function is hard to get,based on the theory of the produced tree.Furthermore,we applied the AHP method to dispose the measurement architecture.Synthesizing the measurement architecture,we obtained a value of the system ability.Adding this value to the ability matrix,the operation complexity can be reduced effectively.At last,we used the theoretic conclusions to evaluate several actual systems and implemented the full evaluation procedure.The evaluation results have showed the validity and feasibility of our methods.