...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of aerospace engineering >A Satellite Observation Data Transmission Scheduling Algorithm Oriented to Data Topics
【24h】

A Satellite Observation Data Transmission Scheduling Algorithm Oriented to Data Topics

机译：卫星观测数据传输调度算法导向到数据主题

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The scheduling of Earth Observation Satellite (EOS) data transmission is a complex combinatorial optimization problem. With the development of remote sensing applications, a new special requirement named data transmission oriented to topics has appeared. It supposes that the data obtained from each observation activity by satellites belong to certain observation data topics, and every observation data topic has completeness and timeliness requirements. Unless all of the observation data belonging to one topic has been transmitted to the ground before the expected time, the value of the observation data will be decayed sharply and only a part of the rewards (or even no reward) for the data transmission will be obtained. Current researches do not meet the new data topic transmission requirements well. Based on the characteristics of the problem, a mathematic scheduling model is established, and a novel hybrid scheduling algorithm based on evolutionary computation is proposed. In order to further enhance the performance and speed up the convergence process of our algorithm, a domain-knowledge-based mutation operator is designed. Quantitative experimental results show that the proposed algorithm is more effective to solve the satellite observation data topic transmission scheduling problem than that of the state-of-the-art approaches.
机译：地球观测卫星（EOS）数据传输的调度是复杂的组合优化问题。随着遥感应用的开发，出现了一种以名为主题为主题的数据传输的新特殊要求。它假设卫星从每个观察活动获得的数据属于某些观察数据主题，并且每个观察数据主题都有完整性和及时性要求。除非属于一个主题的所有观察数据已经在预期的时间之前被传输到地面，否则观察数据的值将急剧衰减，只能腐烂，只有一部分数据传输的奖励（甚至没有奖励）获得。目前的研究不符合新的数据主题传输要求。基于问题的特征，建立了一种数学调度模型，提出了一种基于进化计算的新型混合调度算法。为了进一步提高算法的性能和加快算法的收敛过程，设计了一种基于域知识的突变算子。定量实验结果表明，该算法更有效地解决了卫星观察数据主题传输调度问题而不是最先进的方法。

著录项

  • 来源
    《International journal of aerospace engineering》 |2020年第2期|2180674.1-2180674.16|共16页
  • 作者

    Chen Hao; Zhai Baorong; Wu Jiangjiang; Du Chun; Li Jun;

  • 作者单位

    Natl Univ Def Technol Coll Elect Sci & Technol Changsha 410073 Peoples R China;

    Xian Satellite Control Ctr Xian Peoples R China;

    Natl Univ Def Technol Coll Elect Sci & Technol Changsha 410073 Peoples R China;

    Natl Univ Def Technol Coll Elect Sci & Technol Changsha 410073 Peoples R China;

    Natl Univ Def Technol Coll Elect Sci & Technol Changsha 410073 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号