为提高空地多目标攻击的精确性,该文针对不确定环境下空地多目标攻击的决策模型展开研究。首先,深入分析了影响空对地多目标攻击决策的不确定因素,并提出使用区间形式表示各属性的不确定性范围;其次,采用多层值树对空地协同多目标攻击...为提高空地多目标攻击的精确性,该文针对不确定环境下空地多目标攻击的决策模型展开研究。首先,深入分析了影响空对地多目标攻击决策的不确定因素,并提出使用区间形式表示各属性的不确定性范围;其次,采用多层值树对空地协同多目标攻击进行决策建模;最后,使用RICH(Rank inclusion in criteria hierarchies)方法对决策模型进行求解。2对4空地多目标攻击仿真实例结果表明,该文所提出的协同优先权方法是有效的,可为空地协同多目标攻击决策提供合理依据。展开更多
This paper provides a mathematical model for Three Gorges-Gezhou dam co-scheduling problem, based on full analysis of Three Corges-Gezhou dam＇s actual needs, to maximize the total throughput of Three Gorges-Cezhou da...This paper provides a mathematical model for Three Gorges-Gezhou dam co-scheduling problem, based on full analysis of Three Corges-Gezhou dam＇s actual needs, to maximize the total throughput of Three Gorges-Cezhou dam and the utilization ratio of shiplock area and minimize the total navigation shiplock waiting time under multiple constraints. This paper proposes a series queuing network （SQN） scheduling algorithm to divide the total ships that intend to pass through the shiplocks into four queues and calculate dynamically the weight of priority for each ship. The SQN scheduling algorithm schedules ships according to their priority weights which is determined by the characteristics of each ship, such as length, width, affiliation, waiting time, and so on. In the process, the operation conditions of Gezhou dam related to the navigable shiplocks and the task balancing among different shiplocks also should be considered. The SQN algorithm schedules ships circularly and optimizes the results step by step. Real operation data from our project shows that our SQN scheduling algorithm outperforms the traditional manual scheduling in which the less computational time is taken, the area utilization ratio of the five shiplocks is increased, the waiting time of high-prioritized ships is shorten, and a better balanced and alternating run-mode is provided for the three shiplocks in the Gezhou dam.展开更多
文摘为提高空地多目标攻击的精确性,该文针对不确定环境下空地多目标攻击的决策模型展开研究。首先,深入分析了影响空对地多目标攻击决策的不确定因素,并提出使用区间形式表示各属性的不确定性范围;其次,采用多层值树对空地协同多目标攻击进行决策建模;最后,使用RICH(Rank inclusion in criteria hierarchies)方法对决策模型进行求解。2对4空地多目标攻击仿真实例结果表明,该文所提出的协同优先权方法是有效的,可为空地协同多目标攻击决策提供合理依据。
基金supported by the National Natural Science Foundation of China under Grant No. 60904074the Natural Science Foundation of Hubei Province of China under Grant No. 2008CDB012the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No. 200804871150
文摘This paper provides a mathematical model for Three Gorges-Gezhou dam co-scheduling problem, based on full analysis of Three Corges-Gezhou dam＇s actual needs, to maximize the total throughput of Three Gorges-Cezhou dam and the utilization ratio of shiplock area and minimize the total navigation shiplock waiting time under multiple constraints. This paper proposes a series queuing network （SQN） scheduling algorithm to divide the total ships that intend to pass through the shiplocks into four queues and calculate dynamically the weight of priority for each ship. The SQN scheduling algorithm schedules ships according to their priority weights which is determined by the characteristics of each ship, such as length, width, affiliation, waiting time, and so on. In the process, the operation conditions of Gezhou dam related to the navigable shiplocks and the task balancing among different shiplocks also should be considered. The SQN algorithm schedules ships circularly and optimizes the results step by step. Real operation data from our project shows that our SQN scheduling algorithm outperforms the traditional manual scheduling in which the less computational time is taken, the area utilization ratio of the five shiplocks is increased, the waiting time of high-prioritized ships is shorten, and a better balanced and alternating run-mode is provided for the three shiplocks in the Gezhou dam.
