多参数关联的机载系统空战业务可靠性评估方法

The airborne systems of military aircraft carry multiple interconnected services, such as air combat services. However, the current reliability assessment methods for airborne systems simply combine the reliabilities of subsystems to obtain the system reliability, without considering the correlations within subsystems and between subsystems, and thus cannot support the accurate assessment of the reliability of air combat services. For this reason, this paper proposes the concept of "the reliability of air combat services of airborne systems" and designs and implements a reliability assessment method for air combat services of airborne systems with multi-parameter correlations: The services are decomposed hierarchically through decomposition methods based on business processes and middleware services, and parameters at each layer are extracted to form a parameter system of "business reliability parameters - sub-business reliability parameters - sensory parameters - middleware service-related parameters - specific service step-related parameters", and the correlations between parameters, including correlations and dependencies, are analyzed to establish a business reliability assessment model with multi-parameter correlations. Finally, for the air combat services deployed in the airborne system, the reliability of the air combat services is calculated. The assessment method in this paper has the following innovations and advantages. Firstly, the services are decomposed hierarchically through decomposition methods based on business processes and middleware services, achieving a detailed description of the services. Secondly, the correlations and dependencies between parameters are considered, achieving an accurate assessment of the reliability of air combat services of airborne systems.

军用飞机机载系统承载着相互关联的多业务,如空战业务,而当前的机载系统可靠性评估方法仅由子系统可靠度简单组合得出系统可靠度,没有考虑子系统内部、子系统之间的相关关系,无法支持空战业务可靠性准确评估.为此,本文提出“机载系统空战业务可靠性”概念,设计实现多参数关联的机载系统空战业务可靠性评估方法:通过基于业务流程、基于中间件业务的分解方法分层分解业务,并提取各层参数,形成“业务可靠性参数-子业务可靠性参数-感官参数-中间件业务相关参数-具体服务步骤相关参数”的参数体系,并分析参数间关联关系,包括相关关系、依赖关系,建立多参数关联的业务可靠性评估模型,最后针对机载系统部署的空战业务,计算出空战业务可靠度.本文的评估方法有以下创新点和优势,第一,通过基于业务流程、基于中间件业务的分解方法分层分解业务,实现对业务的详细描述.第二,考虑参数间的相关关系、依赖关系,实现机载系统空战业务可靠性的精确评估.