中文摘要：

动态数据驱动应用系统（DDDAS）是一种功能强大的仿真应用的全新模式，是系统仿真发展的新趋势，是实现现代战争中将信息优势转换为决策优势的有效途径。DDDAS的构建需要将仿真系统与其仿真的真实系统连接起来，而要达到这个目的需要解决的主要问题之一就是如何实现动态数据注入，设计在线联邦成员是一种可行的方法。在介绍DDDAS基本思想的基础上，提出了基于HLA的DDDAS体系结构，设计了基于HLA的DDDAS数据注入在线联邦成员，分析了实现在线联邦成员的关键技术，最后，给出了实现动态数据注入的执行流程。

英文摘要：

Dynamic data driven application systems（ DDDAS ） is a powerful and new simulation application paradigm, and it is the riew trend of simulation. It is an effective approach of converting information advantage into decision advantage in modern war. It is necessary to connect the actual system simulated to the simulation system in the construction of DDDAS. How to inject dynamic data is one of the issues. Therefore, after in troducing the DDDAS principle, the architecture of the HLA - based DDDAS is proposed. The HLA - based DDDAS data inject on - line federate is designed. Some challenges about the implementation of on - line federate are analyzed. At last, the flow chart of dynamic data inject is given.