海洋环境对红外诱饵弹干扰特性建模及仿真

在复杂海洋背景下,诱饵弹的发射对海面环境及舰船目标的干扰影响不可忽略。为了实时计算耦合的红外海洋干扰场景,利用了舰载和机载诱饵弹空时域分布特性及红外辐射模型,分析了诱饵弹在红外波段的工作特点;根据诱饵弹与海洋环境的辐射能量作用机理,利用双向反射率分布函数建立了海面面元的散射特性模型;构建了基于GPU并行运算的海上诱饵弹干扰场景渲染框架,实现了复杂海洋环境中舰载和机载诱饵弹干扰结果的实时计算;评估了舰载和机载诱饵弹对舰船成像结果的影响,并定量分析了舰船对比度随诱饵弹发射角度及观察高度的影响,为复杂海环境目标的侦查探测算法研究、诱饵弹开发提供了依据。

Modeling and simulation of the interference of marine environmental targets by infrared decoys radiation

The interference of marine environment and vessel by decoys cannot be neglected in the complicated marine background. The characteristics of infrared decoys were indicated based on its spatial and temporal distribution characteristics and infrared radiation model. According to the mechanism of radiation energy from decoys and the marine environment, the marine surface scattering model was built based on bidirectional reflectance distribution function(BRDF). A GPU-based parallel computing framework of marine interference scens with infrared decoys was designed, and a 3D real-time simulation of interference of compliected marine scene was performed before and after marine-/aerial-decoys launch. The influence on the imaging by marine-/aerial-decoys established, and the vessel contrast variation with decoys launch angle and observing height were analyzed. The research provides the basis for the study of marine objectives detection algorithms and decoy development.