机载面源诱饵的红外图像制导目标建模仿真

Modeling and Simulation on IR Imaging Guidance Targets of Airborne Surface-Type Decoy

机载面源诱饵在高空高速的飞行器上抛撤,受高速气流与自身燃烧作用的影响,其扩散规律与辐射规律较难模拟。为解决这一问题,首先对面源诱饵箔片云进行有限分组,推导出面源箔片的运动方程,建立面源诱饵的扩散模型;其次根据面源箔片的燃烧实验结果,并考虑红外辐射在大气中的衰减,建立面源诱饵的辐射模型;最后通过VC6.0平台与OpenGL图形库,建立面源诱饵红外图像的仿真程序,仿真生成了诱饵抛撒后三个典型阶段正侧向与正尾向的红外图像,通过与实验数据的对比验证了模型的准确性,并分析了不同阶段与不同方位下诱饵的红外图像特征与干扰效果。研究成果可为面源诱饵的作战使用提供干扰模型。

By dividing surface-type foils into limited groups, a motion equation of surface-type foils is derived and a diffusion model is put forward. Then, based on combustion experiment results of surface-type foils, considering the attenuation of infrared radiation transfer in the atmosphere, the radiation model of surface-type decoy is put forward. Finally, with the VC6.0 platform and Open Graphics Library, the simulation process is completed. The forward-lateral and caudal infrared images of three typical stages are generated with the process. The veracity of model is validated though comparing the dates of experiment. The image characteristics and jamming effect in different stages and different directions are analyzed.