一种基于ES法的卫星测控资源调度仿真及实现  

Simulation & Realization of Satellite TT&C Resources Scheduling Based on Event Scheduling Method

作　　者：杨永安[1,2] 樊恒海[1,2] 冯祖仁[1] 王波[3] 骆永进[3] 

机构地区：[1]西安交通大学 [2]西安卫星测控中心,西安710043 [3]西安卫星测控中心

出　　处：《系统仿真学报》2005年第4期982-985,共4页Journal of System Simulation

基　　金：陆基测控网多任务管理中心(委字第152)

摘　　要：针对陆基测控网“星多站少”而导致测控设备与航天器测控冲突问题,以中低轨道航天器作为研究对象,应用离散事件系统中的事件调度(ES)法对陆基测控资源调度问题进行了研究,提出了解决测控冲突的技术途径,确定了测控弧段优先级及量化方法。同时根据陆基测控网实际和航天器测控需求,抽象出排除测控冲突的数学模型以及在计算机上可实现的实用算法,最后应用模糊综合评价法对仿真结果满意度进行了评估。该测控资源调度方法已成功地应用于航天工程实践,达到了陆基测控网资源的合理分配。It is discussed the problem of serious conflicts between the Tracking, Telemetry and Command (TT&C) resources of ground stations and the requirements of spacecraft TT&C missions for the resources, which are resulted from the fact that there are less TT&C station equipments and more satellites in the ground-base TT&C network. Focusing the Low-Earth Orbit (LEO) and Medium-Earth Orbit (MEO) satellites, the satellite TT&C resources scheduling strategies are studied by use of the Event Scheduling (ES) method, which is one of the discrete event system simulation method. The mathematical models and algorithm for avoiding the TT&C conflicts are established, and the basic approaches to solving the problem are given. Finally, simulation result is evaluated by using integrate estimate method. The method of satellite TT&C resources scheduling has been tested in some TT&C engineering programs. The approaches are proved to be useful and ensure the TT&C resources of the ground-base TT&C network to be allocated reasonably.

关 键 词：事件调度法 中低轨道航天器 陆基测控网 调度及实现 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]