卫星网络测控资源鲁棒调度方法  

Robust Scheduling Method of TT&C Resource in Satellite Network

作　　者：纪翔 刘润滋 要趁红[1] 陈剑豪 慕桃 JI Xiang;LIU Runzi;YAO Chenhong;CHEN Jianhao;MU Tao(School of Information and Control Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学信息与控制工程学院,陕西西安710055

出　　处：《天地一体化信息网络》2023年第1期23-30,共8页Space-Integrated-Ground Information Networks

基　　金：国家自然科学基金资助项目(No.61701365);陕西省重点研发计划(No.2021GY-066);陕西省自然科学基础研究计划(No.2023-JC-YB-566);陕西省高校科协青年人才托举计划(No.20200112);陕西省博士后科研项目资助计划(No.2018BSHEDZZ47)。

摘　　要：卫星网络规模的持续增长为测控资源的有效调度带来了巨大挑战。受到天气等因素的影响,星地链路性能具有较强的不确定性。为了兼顾资源利用率与任务可靠性,提出一种鲁棒的测控资源调度方法。该方法可基于预测得到的星地链路信道状态分布与规划周期内的任务分布情况为测控任务安排传输窗口的开始时间与持续时长,并通过反向迭代的方式对资源分配方案进行优化从而最大化任务期望收益值。实验结果表明,与传统的非鲁棒调度方法相比,所提调度方法在不同信道分布下都能取得良好的任务收益,实现资源利用率与任务可靠性的有效提高。The continuous growth of satellite network scale brings great challenges to the effective scheduling of TT&C resources.Aff ected by weather and other factors,the performance of the satellite-ground link is of high uncertainty.In order to took into both resource utilization and task reliability,a robust scheduling method of TT&C resources was proposed.This method could arranged the start time and duration of the transmission window for TT&C tasks by the predicted the channel state distribution of satellite-ground link and the task distribution in the planning period,and optimized the resource allocation scheme by backward iteration to maximized the expected profit of the tasks.The experimental results showed that compared with the traditional non-robust scheduling method,the scheduling method proposed could obtain more task profit under diff erent channel distributions and achieve the improvement of both resource utilization and task reliability.

关 键 词：航天测控 资源调度 鲁棒调度 卫星网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]