EODAS弹道导弹预警能力仿真研究

Simulation research on early warning of EODAS ballistic missiles

为深入研究光电分布式孔径系统(electro-optical distributed aperture system, EODAS)对弹道导弹的预警能力,建立了导弹尾焰红外辐射的椭圆体模型,并根据臭氧浓度随高度变化的Elterman模型对红外辐射大气传输模型进行改进。根据弹道导弹的动力学模型和红外辐射模型,仿真得到了单级固体导弹的弹道和红外辐射数据。通过分析在飞行过程中蒙皮的温度变化和对比尾焰红外辐射亮度与蒙皮红外辐射亮度,得到了弹道导弹红外辐射随飞行时间的变化规律。最后根据红外系统探测模型和红外大气传输模型研究EODAS对弹道导弹的预警能力。研究表明EODAS前伸部署到战术弹道导弹射程一半位置时,基本实现了对该导弹的全程预警。

In order to study early warning of electro-optical distributed aperture system(EODAS)on ballistic missiles,this paper establishes an ellipsoid model of infrared radiation(IR)of missile tail flames and improves the IR atmosphere transmission model based on the Elterman model which has an O 3 concentration varying with the altitude.The trajectory data and IR data of the single stage solid missile are simulated by a dynamics model and an IR model of ballistic missiles.By analyzing the temperature variation of the skin during flight and comparing the IR brightness of the tail flames with that of the skin flames,this paper obtains the variation law of the ballistic missile IR with the flight time.Finally,the early-warning of EODAS to ballistic missiles is studied based on the infrared system detection model and the infrared atmospheric transmission model.The research shows that if EODAS is disposed at the half range of the tactical ballistic missile,the whole warning of the missile is basically realized.