Avionics Simulation System Credibility

The simulation technology is an important branch of model science and technology.Because of the advantage in such respects as its security, dependability, effectiveness,economy and controllability repeatability,etc,this technology have already applied to the course of grinding,developing,testing etc. The simulation technology has important function to the defense industry particularly. We can save the expenses on the products greatly in the course researching; and we can shorten the cycle of developing. With the development of the simulation technology, People pay attention to the credibility of system simulation more and more. In other word could the simulation system reflect the performance of artificial system? And could the result be accepted by user?At present, Most of the simulation credibility research is armed at detailed simulation system, little work has done in the Integrated Avionics System, This text researched the Integrated Avionics System which has "1553B" as its translation bus, applied VV&A in it and built the credibility modern, and use simulation theory to research the credibility of the sub-system, and we put the fuzzy judgment method to judge the credibility of the whole system. Finally, we researched the cluster problem and put forward a new method.