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在舰船红外热像仿真研究中,仿真的实时性和仿真结果的精度一直是制约热像仿真成果得到工程应用的主要因素.介绍了船舶系统工程部针对舰船红外抑制和红外对抗的需要开发 RIS(Real-time InfraredSimulator,实时海面舰船红外热像仿真平台)所采用的加速算法,包括提高三维图像精度的“多层投影算法”和提高可视性判断速度的“z 缓冲区采样算法”.在普通 PC 机上的验证结果表明,RIS 仿真计算所需的时间仅约30s,图像刷新所需时间小于0.05 s.提高计算机硬件配置后,RIS 的仿真速度还将有大幅度的提高.
In the research of ship infrared thermography simulation, the real-time simulation and the accuracy of the simulation results have been the main factors restricting the application of thermal simulation results to the engineering application.The paper introduces the need of ship system engineering department for infrared suppression and infrared countermeasure of ships RIS (Real-time InfraredSimulator, real-time surface ship infrared thermography simulation platform) used by the acceleration algorithm, including improving the accuracy of three-dimensional image “multi-layer projection algorithm ” and improve the speed of visibility judgment “z buffer Sampling algorithm. ”Verification results on an ordinary PC show that the time required for RIS simulation calculation is only about 30 s and the image refresh time is less than 0.05 s. After the computer hardware configuration is improved, the simulation speed of RIS will also be significantly improve.