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针对红外诱饵弹的工作特点,依据其空时域分布特性,建立了诱饵弹的红外辐射模型;根据红外诱饵弹辐射与环境目标的作用机理,利用双向反射率函数(BRDF)建立目标表面面元的散射特性模型,实现了目标表面面元接收诱饵弹的辐射在观测方向产生的辐射亮度计算;并基于OGRE的红外场景仿真平台,对诱饵弹发射前后地物环境的变化进行实时仿真。仿真结果显示了发射诱饵弹后不同时刻诱饵弹辐射对地物环境的影响效果,这对红外诱饵弹研发具有极为重要的意义。
According to the characteristics of the infrared decoy bomb, the infrared radiation model of the decoy bomb was established according to its space-time distribution characteristics. According to the interaction mechanism between the infrared decoy bomb and the environmental target, a bidirectional reflectance function (BRDF) was used to establish the target surface element The scattering model of the target surface element is used to calculate the radiation brightness of the target surface element receiving decoy bomb in the observation direction. The real-time simulation of the changes of the surface features before and after the launch of the decoy is performed based on the OGRE infrared scene simulation platform. The simulation results show that the effect of decoy bombs on the earth and the environment at different times after the decoy bombs are launched are of great significance for the research and development of infrared decoy bombs.