空战对抗中面源红外诱饵干扰效能仿真

Jamming effectiveness simulation of surface source infrared decoy in air confrontation

面源红外诱饵相比于传统的红外诱饵,在燃烧速率、扩散范围、干扰效能等方面具有显著的优越性。考虑实验成本的经济性和测试干扰效能的效率,提出了一种空战对抗中面源红外诱饵干扰效能的仿真思路。首先,建立了导弹运动和导引头跟踪模型、飞机红外辐射模型,作为空战对抗双方的假想;其次,建立了诱饵箔片的运动与燃烧模型,以诱饵箔片为研究对象,求解箔片表面温度分布,并通过燃烧算法优化,得到整体辐射特性;最后,通过改变面源诱饵的发射角度、高度、目标机速度等参数,进行干扰成功率的仿真。仿真结果表明,提出的效能评估思路可行有效,与真实测试很接近,达到面源诱饵干扰效能评估的要求。

Compared with traditional infrared decoy, surface source infrared decoy has obvious superiority in burning rate, diffusion range, jamming effectiveness and so on. Considering the economy of cost and improvement of jamming effectiveness testing efficiency, a thought which can simulate the testing work was proposed based on air confrontation. Firstly, the models of missile movement, seeker tracking and aircraft infrared radiation were established, which were regarded as hypothesis of air confrontation both sides. Secondly, the motion and burning model of decoy foil was built. The decoy foil was taken as the researching object and solving foil surface temperature distribution. By optimizing combustion algorithm, the overall radiation characteristic was obtained. Finally, through changing factors, such as the launch angle, height of decoy and the speed of aircraft, jamming effectiveness was tested. It＇s resulted from simulation that the effectiveness evaluation thought close to the real scene is feasible and effective, meeting the demand of evaluation.