基于Petri网的低轨星座空间覆盖属性分析  

Analysis of LEO constellation spatial coverage attribute based on Petri nets

作　　者：杨宣[1] 郭法滨[1] 王明哲[1] 

机构地区：[1]华中科技大学自动化学院,湖北武汉430074

出　　处：《系统工程与电子技术》2014年第3期481-486,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(61273207)资助课题

摘　　要：针对低轨(low earth orbit,LEO)星座系统的空间覆盖性能,提出应用着色Petri网(colored Petri net,CPN)建模仿真分析星座对目标空间覆盖属性的方法。通过低轨探测星座系统的三层CPN建模和仿真,分析整体星座的逻辑结构特性和多星动态协同事件操作流程及操作事件的因果/并发时序关系,创建了一种LEO探测卫星对任意时间、任意地点和任意弹道的空间目标覆盖属性研究途径,以获得星座对任意来袭目标的最优探测操作流程。For the spatial coverage performance of a low earth orbit （LEO） constellation system, the appli cation of the colored Petri net （CPN） model is proposed, and simulation is made to analyze the spatial coverage attribute of constellation to the space target. By the three layers CPN＇s modeling and simulation for the LEO satellite constellation system, the logical structure characteristic of the whole constellation, the multi-satellite＇s dy namical collaborative event operation process and the causal/concurrent timing relationship of operational events are analyzed, and an approach to research the space coverage attributes of the LEO satellite to the space targets with any time, any place and any ballistic is created, to obtain the best operational process of the constellation to any incoming targets.

关 键 词：低轨卫星星座 空间覆盖属性 PETRI网 结构化分析 

分 类 号：N945.1[自然科学总论—系统科学]