背景对高超声速飞行器探测的影响  

Background Influence on the Hypersonic Vehicle Detection

作　　者：何苹 王莹莹[2] HE Ping;WANG Yingying(Information Engineering Academy,Xijing University,Xi’an 710123,China;Air and Missile Defense College,Air Force Engineering University,Xi’an 710046,China)

机构地区：[1]西京学院信息工程学院,西安710123 [2]空军工程大学防空反导学院,西安710046

出　　处：《弹箭与制导学报》2020年第1期89-93,101,共6页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：中国博士后科学基金特别资助项目(2014T71008)资助。

摘　　要：为了探索背景对临近空间高超声速飞行器探测性能的影响,研究地面、云层和海洋三种背景下的红外作用距离。针对传统作用距离模型的不足,根据探测的几何关系及路径辐射,对其进行改进。基于空气动力学、加力燃烧原理、尾焰简化模型,计算X-51A蒙皮、喷管及尾焰红外辐射。综合自然环境的影响,建立3种背景的红外辐射模型。仿真表明,速度为6 Ma时,3种背景下的探测距离差别不大。飞行速度越大,背景对探测距离的影响越小。结论指出,高超声速飞行时,可以忽略背景的影响。The infrared operating range was estimated for the hypersonic vehicle in the ground/cloud/sea background for their influence on the detectability.The modified operating range model was built on basis of the detection geometry as well as the path thermal.The infrared radiation characteristics computation model of X-51A’s skin,nozzle and plume were given on basis of aerodynamics,afterburning theory and simplified plume model.The infrared radiation in the ground/cloud/sea background was computed.It showed in simulations that the operating ranges in three typical backgrounds differed slightly at 6Ma.And the effects of the background on the operating range were smaller with higher speed.It is inferred that the detection background can be ignored with very high velocity.

关 键 词：红外探测 作用距离 高超声速飞行器 路径辐射 驻点 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程] TN219[电子电信—物理电子学]