Creation And Distribution Of Vehicle Telecommunication System Electromagnetic Protection Index System

Along with the rapid development of information technology, the electromagnetic environment has become more and more complicated, electromagnetic pulse of electromagnetic radiation has a more and more serious interference on the vehicle telecommunication system,how to carry on electromagnetic protection to the system has been highly valued.The research on vehicle telecommunication system to electromagnetic interference mainly includes electromagnetic compatibility( EMC) and electromagnetic protection, electromagnetic compatibility mainly discusses the problem of electromagnetic interference about the in-system or inter-system, and electromagnetic protection chiefly concerns interference on the electromagnetic system that is caused by the complex electromagnetic environment. Obviously,comparing the EMC, electromagnetic protection of vehicle telecommunication system has higher levels of protection and greater coverage.By analyzing the complex electromagnetic environment,it researches the electromagnetic protection by using the method of the index system’s construction.The research objects of electromagnetic protection and electromagnetic compatibility are vehicle telecommunication system.And their purpose is to ensure the normal work of the system in the electromagnetic environment.Electromagnetic protection index system of vehicle telecommunication system can use some index of the electromagnetic compatibility.Considering the characteristics,it presents a unique index of the electromagnetic protection.Finally,it forms an electromagnetic protection index system that is reasonable and different from the electromagnetic compatibility index system.By applying the case-based reasoning method and analyzing the sensitivity of the electromagnetic index,it can realize the index al ocation.The main research achievements are as follows:(1) For the first time,it analyzes electromagnetic protection of vehicle telecommunication system by using the method of constructing the index system,covers every aspect from the overall performance of the system to level performance indicators,researches the electromagnetic protection comprehensively.Besides,each level index has a close logical relationship in the index system,which makes the analysis of the electromagnetic protection more reasonable and closer to the actual situation.(2) By analyzing the existing EMC index system of vehicle telecommunication system comparatively and using the sharing index,it presents the unique index to the characteristics of the electromagnetic protection,analyses mutual restraint requirements and constructs the electromagnetic protection index system of vehicle telecommunication system and can reflect the electromagnetic protection performance of the vehicle telecommunication system.(3) It distributes the electromagnetic protection index of vehicle telecommunication system by applying the case-based reasoning method,filters out the index that has larger influence on the system performance,modifies the index value reasonably by analyzing the sensitivity of the sub-criterion layer index.Eventually, it realizes the accuracy and efficiency of the example program’s modification and makes the index al ocation more smoothly.