平衡滑翔高超声速飞行器弹道预测方法  

Prediction Algorithm of Equilibrium Gliding Hypersonic Vehicle Trajectory

作　　者：韩春耀[1] 熊家军[2] 

机构地区：[1]空军预警学院研究生管理大队,湖北武汉430019 [2]空军预警学院四系,湖北武汉430019

出　　处：《现代防御技术》2016年第5期120-124,172,共6页Modern Defence Technology

摘　　要：针对高超声速飞行器的弹道预测问题,提出了在平衡滑翔条件下的弹道预测方法。分析了高超声速飞行器平衡滑翔时运动参数之间的关系,并求解出带有未知参量的弹道解析式,在此基础上,结合量测数据计算出高超声速飞行器的未知参量,获得了只有时间参量的弹道解析式,即实现了弹道预测。将高超声速飞行器运动微分方程组的数值积分解作为真实数据,通过仿真实验计算了弹道预测的均方根误差,验证了弹道预测的有效性。Aiming at the hypersonic vehicle trajectory prediction problem,a trajectory prediction algorithm is proposed under the condition of equilibrium gliding. Firstly,relationships between motion parameters are analyzed,and analytical trajectory equations with unknown parameters are presented. Secondly,unknown parameters,such as lift drag ratios,are worked out combined with the measurement data,and then analytical equations of trajectory with the time parameter only are acquired,which means that trajectory prediction is accomplished. Numerical solution of motion differential equations is regarded as real flight data in the simulation,and then the validity of trajectory prediction algorithm is proved by computing the root sum square error（ RMSE） of prediction.

关 键 词：临近空间 高超声速飞行器 弹道预测 平衡滑翔弹道 解析解 弹道特性 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程] TP391.9[自动化与计算机技术—计算机应用技术]