分布式交互仿真中一种新的数据分发管理算法的研究  

New Algorithm of Data Distribution Management for Distributed Interactive Simulation

作　　者：张亚崇[1] 孙国基[1] 严海蓉[1] 钟联炯[2] 

机构地区：[1]西安交通大学机械制造与系统工程国家重点实验室,西安710049 [2]西安工业学院计算机科学与工程系,西安710032

出　　处：《系统仿真学报》2005年第1期91-94,99,共5页Journal of System Simulation

摘　　要：高层体系结构HLA中的数据分发管理DDM的主要目标是为了尽可能地减少成员收到不需要的数据和流过网络的数据量,以有效地使用系统的通信带宽和处理机的计算能力来满足系统的可扩展性,同时也提高了仿真效率。在对HLA中数据过滤机制深入研究的基础上,提出了一种新的DDM算法:首先利用网格进行区域匹配的计算,其次给当前有公布区域和订购区域重叠的网格单元动态地分配组播地址,最后实现把部分公布数据传递给接收方。仿真结果证明了方法的有效性。The goal of the Data Distribution Management (DDM) defined in High Level Architecture (HLA) is to reduce both the transmission and the reception of irrelevant data. At the same time it satisfies system's scalability and improves simulation efficiency by effective using of network bandwidth and computation capacity. A new DDM algorithm is proposed based on study of data filtering in HLA. Firstly, it calculates region matching by grid-based method, and then dynamically allocates multicast groups based on current cells in which there are publication and subscription regions overlapped. At last, parts of published data are delivered to receiver(s). The simulation results prove the validity of the algorithm.

关 键 词：分布式交互仿真 高层体系结构 运行支撑系统 数据分发管理 区域匹配 网格 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]