摘要
类HTV-2高超声速飞行器在大气层中飞行时间长、速度快、机动性强,高温热化学非平衡流场对目标光辐射特性和雷达散射特性产生严重影响。通过发展和完善类HTV-2飞行器光辐射特性分析评估技术、雷达散射特性分析评估技术和地面与实际飞行试验数据分析评估技术,研制了具有自主知识产权的面向类HTV-2飞行器光电特性分析评估软件。以探测距离为分析评估函数,对高超声速目标光电特性进行了评估。提出基于尾迹雷达散射截面(RCS)特性的高超声速目标超视距探测方法和消除高温热化学非平衡流场影响的紫外制导方法,以提高对高超声速飞行器的探测和制导能力。相关结果可以为类HTV-2飞行器光电特性研究提供技术支撑。
The hypersonic vehicle has long flight time,fast speed and strong maneuverability in the atmosphere.During the flight,the thermochemical non-equilibrium flow field will be generated around the vehicle to have a serious impact on the optical radiation and radar scattering characteristics of the target.In this paper,an analysis and evaluation technology of the optical radiation and radar scattering characteristics of the HTV-2-like vehicle is developed and improved,and its validity is verified by ground test data.A software for analysis and evaluation of the optical radiation and radar scattering characteristics of the HTV-2-like vehicle with independent intellectual property rights is developed.The optical radiation and radar scattering characteristics of hypersonic targets are evaluated using detection distance as the analysis and evaluation function.Methods to improve the detection and guidance capabilities of defense system,such as over-the-horizon detection of the hypersonic vehicle based on wake RCS characteristics and ultraviolet guidance that eliminates the influence of thermochemical non-equilibrium flow field,are proposed.The results of our study can provide technical support for the study of optical radiation and radar scattering characteristics of hypersonic vehicles.
作者
于哲峰
梁世昌
石卫波
田得阳
石安华
廖东骏
杨鹰
YU Zhefeng;LIANG Shichang;SHI Weibo;TIAN Deyang;SHI Anhua;LIAO Dongjun;YANG Ying(Hypervelocity Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China)
出处
《航空学报》
EI
CAS
CSCD
北大核心
2023年第S02期127-137,共11页
Acta Aeronautica et Astronautica Sinica
基金
省部级项目
关键词
高超声速
光辐射
雷达散射
探测
制导
hypersonic
optical radiation
radar scattering
detection
guidance
