ID 原文 译文
55938 利用证据理论验证集对分析处理区间数多属性决策问题的可行性;将战机机动融入态势评估函数,选取在一定时间敌我机动前后的战场态势构成区间数决策矩阵;利用集对分析理论把区间值转化成联系数进行评估,并用粒子群(particle swarm optimization,PSO)算法对态势要素权重进行寻优。 Validation set by using evidence theory to analysis the feasibility of the interval number multiple attribute decision making problems;Blend in aircraft maneuvering situation assessment function, the selection in a certain time, the battlefield of before and after the motor constitute interval Numbers decision matrix;Using set pair analysis theory to evaluate converts the interval value to contact number, and the particle swarm (particle swarm optimization, PSO) algorithm for optimal situational factors weights.
55939 经验证,该方法在一定程度上提高了态势评估的真实性。 Verified that the method to a certain extent, improved the truth of situation assessment.
55940 现有的基于失效物理(physics of failure,PoF)模型的可靠性预计只能计算电子产品在寿命周期内经历单一典型任务剖面的失效时间。 Existing based on failure physics, physics of failure, PoF) model of reliability prediction can only calculate the electronic product experience in life cycle of a single failure time of typical mission profile.
55941 本文提出了一种基于失效物理模型,并利用蒙特卡罗仿真定量分析电子产品在寿命周期内实际经历多任务剖面的可靠性水平的新方法。 This paper proposes a model based on failure physics, and quantitative analysis using monte carlo simulation electronic product in actual experience life cycle are more task profile, a new method of the level of reliability.
55942 将该方法应用于某机载电子设备的平均失效前时间(mean time to failure,MTTF)的计算,建立失效率和可靠度的时间函数,与目前国内工程实践中常用的失效率经验模型法以及设备可靠性强化试验的结果进行了对比分析。 Applying this method to an airborne electronic equipment of the average time before failure (mean time to failure, MTTF) calculation, to establish failure rate and reliability of time function, and the current domestic experience of failure rate model method used in engineering practice and the equipment reliability, strengthen the result of the test are analyzed in comparison.
55943 结果表明,该方法不仅可以计算可靠性参数,而且通过分析与计算过程可发现设计薄弱环节与可靠性参数的定量关系,有效指导设计改进。 Results show that this method can not only calculate the reliability parameters, and can be found through analysis and calculation process quantitative relationship for the design of the weak links and reliability parameters, effectively guide the design improvement.
55944 卫星导航系统星座可用性分析面临准确性和快速性的矛盾。 Satellite navigation constellation availability analysis accuracy and rapidity of facing contradictions.
55945 论文在研究全球卫星导航系统(global navigation satellite system,GNSS)星座可用性分析需求的基础上,系统地定义了导航系统可用性的基本概念,给出了基于分系统部件失效计算导航星座可用性的方法,提出了基于Markov过程的单星可用度算法,建立了基于星座状态概率的服务可用性计算模型,并结合导航基本原理模型得到了导航星座的可用性。 Papers in the study of global satellite navigation system (global navigation satellite system, GNSS) constellation availability analysis of demand, on the basis of systematically defining the basic concept of the navigation system availability, is given based on the subsystem of navigation constellation availability method to calculate component failure, put forward the single star availability algorithm based on Markov process, set up service availability based on constellation state probability calculation model, combined with the basic principle of navigation model to get the availability of navigation constellation.
55946 最后,基于此方法针对北斗区域卫星导航系统相关数据对其星座可用性进行了仿真和实验分析。 Finally, based on this method for a regional satellite navigation system related data for its constellation availability has carried on the simulation and experimental analysis.
55947 结果表明,本文所提方法和模型能够满足卫星导航系统星座可用性分析的特殊需求。 Results show that the proposed method and the model can satisfy the constellation satellite navigation system availability analysis of special needs.