航空电子系统仿真可信度评估方法研究  

Research on Evaluation Method of Flight Electronic System Simulation Credibility

作　　者：马赞[1,2] 王鹏 胡剑波[2] MA Zan;WANG Peng;HU Jian-bo(Civil aircraft airworthiness certification technology key laboratory of Tianjin,Civil Aviation University of China,Tianjin 300300,China;Equipment Management and UAV Engineering College,Air Force Engineering University,Xi'anShanxi 710051,China)

机构地区：[1]中国民航大学民航航空器适航审定技术重点实验室,天津300300 [2]空军工程大学装备管理与无人机工程学院,陕西西安710051

出　　处：《计算机仿真》2019年第11期9-12,共4页Computer Simulation

基　　金：国家自然科学基金委员会-中国民航局民航联合研究基金资助(U1533105)

摘　　要：针对传统可信度评估方法存在评估时间较长、均方误差偏高、可信度较低等问题,提出了一种基于ReliefF算法的航空电子系统可信度评估方法。分析航空电子系统基础数据,构建系统可信度模型,可信度模型的信任值包含主观信任值、直接信任值以及推荐信任值三个方面,由三个信任值推导出电子系统可信度最终信任值。根据最终信任值,利用主观判别方法分别计算航空电子系统定性指标可信度、可信度指标主观权重值、可信度指标客观权重值,根据指标综合性权重值给出评估结果。在上述基础上,采用ReliefF算法筛选整个航空电子系统可信度评估指标,并完成评估。实验结果表明,所提方法有效缩短了评估时间,降低了均方误差,提高了评估结果的可信度。Traditional credibility evaluation methods need long evaluation time. Meanwhile, the mean square error is high and credibility is low. Therefore, this article focuses on a reliability evaluation method for avionics system based on ReliefF algorithm. Firstly, this research analyzed the basic data of avionics system and constructed the system credibility model. The trust value of credibility model included the subjective trust value, the direct trust value and recommendation trust value. After that, the trust value of electronic system was derived from these three trust values. According to the final trust value, the subjective judgment method was used to respectively calculate the credibility of qualitative index of avionics system, the subjective weight value of credibility index and the objective weight value of credibility index. Finally, the evaluation result was given by the comprehensive weight value. On this basis, ReliefF algorithm was used to screen the evaluation index of avionics system credibility and thus to complete the assessment. Simulation results prove that the proposed method effectively shortens the evaluation time, reduces the mean square error and improves the credibility of evaluation result.

关 键 词：航空电子 系统仿真 可信度评估方法 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]