Petri Nets-based Performance Analysis Of Integrated Avionics System

System Performance Evaluation is the important theoretical basis and supporting technology of the development of computer system and network. There are tliree major aims for it: selection, design and improvement. That is to say that through the Evalution, the comparatively better system will be selected, and that the optimum design and configuration will be obtained on the basis of it, and that the operation efficiency will also be increased by improving the current system.The thesis are Petri Nets(PN)-based Performance Analysis of Integrated Avionics system. Through the analysis of Reliability and Data Bus Performance index of Integrated Avionics system can optimize Integrated Avionics system. Simulating Reliability and MIL-STD 1553B(1553B) of Integrated Avionics System by the Deterministic and Stochastic Petri Nets (DSPN) and Stochastic Petri Nets (SPN) are the methods of the thesis.The content of this thesis are shown as following.Firstly, Building the model of system by PN is not only to get steady mean of Performance index of system, but also to get the law of change by time. The result of research indicats the Reliability of series model, the Busload of 1553B, System Delaytime.Secondly, The other important point is to raise the model of Evaluating Integrated Avionics Performance, including the use of Fuzzy the Analytic Hierarchy Process (FAHP).Finally, the model and methods of Performance Evaluation is effective method in Evaluating difference of varity of system. The Analysis of the data and curve of model can provide index of system Performance. The index of system can provide an important theoretical basis for the design and improvement of the system.