基于MC的电子对抗情报系统ESCPN模型性能分析

Performance Analysis of Electronic Countermeasure Intelligence System ESCPN Model Based on MC

针对基本Petri网对电子对抗情报系统描述能力不够的缺点,采用层次化的结构和面向对象的思想,提出一种扩展的随机着色Petri网（Extended Stochastic Coloured PetriNet,ESCPN）模型。对Petri网结构、建模元素、执行规则等进行扩充,分析基于MC状态方程的各项性能指标,以电子对抗情报系统中的初级电子目标生产子系统ESCPN模型为例,应用所建立的性能指标对系统的时间性能进行分析。分析表明,ESCPN模型和连续时间的马尔可夫链（MC）是同构的,能加强模型的描述和分析能力。

A kind of extended stochastic colored Petri net （ESCPN） is put forward which combines the hierarchy and object-oriented idea concerning the defects of Petri net that it is inadequate to describe electronic countermeasure intelligence system. The structure of Petri net, modeling elements and run rules are extended in the ESCPN model. Its performance indexes based on the state equation of Markov chain （MC） are analyzed. Then the ESCPN model of electronic target intelligence producing is given and the time performance is analyzed. It is shown that ESCPN is same as a continuous time Markov chain, and the description and analysis abilities of Petri net model are enhanced.