以无量纲反值能量为自变量建立了飞行器3自由度运动方程组,提出了一种改进的计算再入飞行器可达区域的快速算法.引入倾侧角反向策略,使计算的可达区域更精确;改进产生可达区域中间边界的插值方式,使计算结果更加均匀;改进了终端约束处理方法,使弹道更加平滑.以一种乘波体模型为例进行仿真验证,仿真结果表明改进算法计算的可达区域比现有算法更精确且弹道更平滑. Based on the dimensionless inverse energy as the independent variable, a 3-DOF equations of motion for the aircraft are established, and an improved fast algorithm for calculating the reachable area of ​​the reentry vehicle is proposed. By introducing the inversion strategy of the tilting angle, the calculated reachable area is more The interpolation method of generating the middle boundary of the reachable area is improved to make the calculation result more uniform and the terminal constraint processing method is improved to make the trajectory smoother.The simulation results show that the improved algorithm The reachable area is more accurate and smoother than the existing algorithms.