CAJ | 학술논문

针对高超声速滑翔飞行器再入拉起后升阻比呈近线性增长的特点，提出一种基于升阻比变化规律的轨迹预测算法。首先对目标运动方程进行分析，发现轨迹预测算法的关键在于能否预测升阻比的大小；然后通过对目标进攻轨迹的仿真得到了升阻比呈近线性增长的规律，给出了升阻比变化函数的形式及拟合方式，并在此基础上设计了轨迹预测算法，最后通过仿真验证了算法的有效性。该算法对反助推－滑翔无动力跳跃飞行器指挥决策问题的研究具有重要意义。
침대고초성속활상비행기재입랍기후승조비정근선성증장적특점，제출일충기우승조비변화규률적궤적예측산법。수선대목표운동방정진행분석，발현궤적예측산법적관건재우능부예측승조비적대소；연후통과대목표진공궤적적방진득도료승조비정근선성증장적규률，급출료승조비변화함수적형식급의합방식，병재차기출상설계료궤적예측산법，최후통과방진험증료산법적유효성。해산법대반조추－활상무동력도약비행기지휘결책문제적연구구유중요의의。
A trajectory forecasting algorithm of the reentry hypersonic glide vehicle is designed based on the linear growth character of the lift-drag ratio of the vehicle.Firstly,by judging the movement equation,the most important thing of the algorithm is discovered,which is that how to predict the lift-drag ratio.Secondly,the simulation of the target trajectory shows the linear growth rule of the lift-drag ratio,the model of the lift-drag ratio variation function is given and the trajectory forecasting algorithm is designed.Simulation results show the efficiency of the forecasting algorithm.This algorithm is important to study the problems on combating with the hypersonic glide vehicle.