红外诱饵辐射特性仿真技术研究  

Radiation Simulation of the Characteristics of Infrared Flares

作　　者：杨东升[1] 戴冠中[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《科学技术与工程》2011年第21期5104-5110,共7页Science Technology and Engineering

基　　金：航空基金(20100153002);航天支撑基金(1014002)资助

摘　　要：在红外制导导弹对抗红外诱饵的过程中,由于在不同条件下红外诱饵的红外辐射特性变化较大,而目标飞机的红外辐射特性变化较小,导致导弹抗干扰概率较大的波动。这就要求在利用数字仿真或半实物仿真方法评估导弹抗干扰性能时,必需建立准确的红外诱饵辐射模型。根据能量守恒定律、黑体辐射定律及波尔兹曼定律推导了红外诱饵辐射计算模型,分析了高度和速度特性对其辐射特性的影响,并据此对诱饵辐射计算模型进行了修正。还给出了长方体和圆柱体两种典型形状诱饵质量燃烧率的计算公式。根据红外诱饵的辐射模型和运动模型编制了仿真软件。辐射模型所需的诱饵高度和速度来自运动模型,而运动模型所需的质量燃烧率来自辐射模型。通过合理地设置参数,该仿真软件可以对各种型号的红外诱饵,在各种对抗条件下的辐射特性进行仿真。最后给出了几组典型的仿真结果并对其进行了分析。The radiant intensity of infrared flares changed in a wide range than the aircraft in different couter condiation. It induced biggish change of the succeed probability of missile counter infrared flares. The precise radiant model of infrared flares was needed in the couter-coutermeasure performance evaluation of infrared missiles. The model for calculating radiant intensity of infrared flares was derived according to the law of conservation of energy, blackbldy radition law and Stephen-Boltzmann＇s law. The infulence of the flares height and speed on radiant intensity is also analyzed. Base on the above analysis, the model for calculating radiant intensity of infrared flares was amended. The models take into account the value of the atmospheric density, pressure, gravity and sound velocity changed with height. In addition, radiant and kinetic models of infrared flares were considered together in developing simulation software for alculating radiant intensity of infrared flares. In solving kinetic equations, the fuel combustion rate was needed that was calculated through radiant model. On the other hand, the height and velocity of infrared flares were come from kinetic model in alculating the liner burn rate of radiant model. The software can simulate a variety of infrared flares by setting appropriate parameters. The simulation scenarios thus generated have high credibility.

关 键 词：红外诱饵 辐射特性 高度 速度 仿真 

分 类 号：V448.133[航空宇航科学与技术—飞行器设计] TP391.9[自动化与计算机技术—计算机应用技术]