The implementation mechanism of collision detection is introduced in Vega Prime to improve the reality and veracity in the virtual battlefield.According to various simulations,the types and characteristics of collision detection based on Vega Prime are analyzed.Then the methods and steps of defining,creating and referring collision detection are proposed,and the validity of the methods are proved with large land scene simulation,marine visualization and threat estimation.The presented principles are of generality and usability for the various visual simulation developments of vehicle simulation,flight simulation and arm attack simulation.Results of the experiment show that it is effective in the virtual battlefield.%为了提高虚拟战场环境中实体间碰撞检测的实时性和准确性,对Vega Prime中碰撞检测算法实现的机制进行了研究.针对不同的仿真应用,分析了Vega Prime仿真平台下碰撞检测器的类型及特点.总结出了在Vega Prime环境中定义、创建和使用各种碰撞检测的方法和步骤,并结合大地景仿真、海洋视景仿真和威胁判断验证了这些方法的有效性.给出的开发思路对于车辆仿真、飞行仿真、交战过程仿真等各类视景仿真开发都具有很高的通用性和实用性,可以满足最为复杂的虚拟战场应用要求.
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