快速、准确、鲁棒的轨迹生成方法可以增加任务的安全性与可靠性,极大地降低成本。针对亚轨道飞行器返回段特点,引入“伪控制量”、“末端进场走廊”等概念,分别采用高斯伪谱法和向前拉道伪谱法进行了返回轨迹快速优化研究,比较了两种伪谱法在处理复杂问题时的能力。仿真结果表明,向前拉道伪谱法不适合处理含控制量约束的问题,而高斯伪谱法在满足各种约束条件下,能够快速准确地生成亚轨道飞行器返回轨迹,同时验证了结果的可行性与最优性。 Fast, accurate and robust trajectory generation methods can increase the safety and reliability of tasks and greatly reduce costs. Aiming at the characteristics of the return section of the suborbital aircraft, the concepts of “pseudo control amount ” and “terminal approach corridor ” were introduced. The regression trajectories were quickly optimized by using Gaussian pseudo- The ability of two kinds of pseudo-spectral methods to deal with complex problems is compared. The simulation results show that the forward labyrinthine pseudospectral method is not suitable for dealing with the control constraint problem, while the Gaussian pseudospectral method can generate the trajectory of the suborbital vehicle quickly and accurately under various constraints, and at the same time verify the results of Feasibility and Optimality.