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�������պ����ѧѧ�� 2006, Vol. 32 Issue (06) :709-712    DOI:
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Multi-federation system based on tree-topology
Lin Xin, Wang Xingren*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� The system logic structure has innumerous effect to the development, execution, and scalability of multi-federation system. A multi-federation system based on tree-topology structure was provided. Federations in the system were connected through proxies. Each federation was connected only with federations directly upper and lower. Thus multi-channels and loops in data transmission were avoided. A strategy was also presented to synchronize time advancement in real time multi-federation systems using RTI (run-time infrastructure) time management. Time-regulation federates and time-constraint federates in multi-federation systems were settled specially to ensure that synchronization signals created in root federation could be transmitted to leaf federations through tree-topology. The synchronization of time advancement of the whole system was realized. The time delay of synchronization signals in system was also analyzed as a result a time-delay formula was given. This formula reveals that more levels in system structure would lead to more delay.
Keywords�� HLA(high level architecture)   RTI(run-time infrastructure)   multi-federation   tree-topology   time management     
Received 2005-06-22;
About author: �� ��(1972-),��,ɽ����ƽ��,��ʦ, lx@buaa.edu.cn.
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����, ������.���������˽ṹ�Ķ�����ϵͳ[J]  �������պ����ѧѧ��, 2006,V32(06): 709-712
Lin Xin, Wang Xingren.Multi-federation system based on tree-topology[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(06): 709-712
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