中文摘要：

在介绍DR模型在分布交互式仿真中应用的基础上，分析了视景仿真中当前几种DR模型在解决运动实体“跳动”问题时所具有的局限性；提出了基于视觉范围的自适应闲值DR模型的数学建模理论基础和建模方法，并利用视景仿真系统Vega中的接口函数给出了相应实例；结果表明该模型不仅能有效抑制运动实体的“跳动”，而且对提高整个仿真系统的效率也具有积极作用。

英文摘要：

Based on the introduction of DR model and its application in Distributed Interactive Simulation （DIS）, the limitations of several current DR models were analyzed when they were processing the “jumping” problem in Scene Simulation. A modeling theoretical principle and a method on how to set up a DR model with a self-adapting threshold based on visual range were proposed, and a corresponding instance was established by using the Vega API. The result of the instance indicates that the model is not only valid to the “jumping” problem, but also positive in raising the running efficiency of the whole DIS system.