| 摘要: |
| 提出了在分布式交互仿真中基于回拨时钟的异步时钟一致性控制模型,利用节点间时钟的异步性对系统时间资源进行重新分配,达到了在保证原有系统功能正确性的前提下有效提高系统整体性能的目的.根据上述模型,首先提出了基于全局信息的快速拟合法,并证明了该算法的有效性;之后又根据实际网络情况提出了基于局部延迟信息的逐步逼近法;最后通过实验分析了上述方法的静态和动态性能.实验结果表明,异步时钟方法对系统的交互性能有显著提高. |
| 关键词: 分布式交互仿真 连续模型 异步时钟 一致性 交互效率 |
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| 基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant No.2006AA01Z332 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2005CB321801 (国家重点基础研究发展计划(973)) |
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| Asynchronous Time Consistency Control Methods in Distributed Interactive Simulation |
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ZHANG Wei,ZHOU Hang-Jun,PENG Yu-Xing,LI Si-Kun
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| Abstract: |
| This paper proposes a model called asynchronous time consistency (ATC) based on call-back clock method in distributed interactive simulation system (DIS). This model utilizes the asynchronism of different nodes’ clocks to re-distribute the time resources and improve the overall performance without compromising the system functionality. With this model, the paper firstly designs a fast approximation method based on the global delay information, and proves the effectiveness of the algorithm; secondly, according to the actual network condition, it also designs a fast iteration method based on the partial delay information. In the end, experiments are conducted and analyze to static and dynamic performance of these methods. Experimental results show that the ATC methods can improve the interaction performance effectively. |
| Key words: distributed interactive simulation continuous model asynchronous time consistency interaction efficiency |
