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建立了基于三维场景的红外成像制导系统虚拟样机。虚拟样机模型分为成像系统、信号处理、运动控制三个模块。在分析各模块实现的基础上,重点研究了虚拟样机与三维场景之间的运动关系及数据交换过程,并实现了数学建模。利用时间放大方法,探讨了解决仿真中实时性与逼真性之间矛盾的途径。最后,利用三维红外场景数据进行了导弹制导过程仿真试验,并给出系统作用距离与探测概率关系、弹道曲线等仿真结果。
A virtual prototype of infrared imaging guidance system based on 3D scene is established. Virtual prototype model is divided into imaging system, signal processing, motion control three modules. On the basis of analyzing the realization of each module, this paper focuses on the movement relation and data exchange process between virtual prototype and 3D scene and realizes mathematical modeling. By means of time amplification, the ways to solve the contradiction between real-time and real-life in simulation are discussed. Finally, three-dimensional infrared scene data is used to simulate the missile guidance process, and the relationship between the system’s working distance and probing probability, the trajectory curve and other simulation results are given.