飞船再入制导研究

在配平迎角飞行的合理假设下，建立了描述载人飞船再入飞行段弹道的数学仿真模型。在飞船再入标准轨道设计和再入机动边界计算的基础上，研究了基于标准轨道法的飞船再入飞行制导规律。六自由度飞行弹道的数学仿真证明，设计的制导律能满足飞船再入飞行制导和定点着陆的要求，同时还得到了飞船再入飞行的某些运动规律和一些有益的结论。

A Research on Reentry Guidence Rule of Spaceship

On the reasonable assumption of match AOA(angle of attack) flight,the mathematics simulation model of the reentry flight of a spaceship is formulated in this paper. After designing the standard reentry trajectory of the spaceship and calculating the reentry maneuvering borderline,the reentry guidance rule on the basis of standard trajectory is approached in details in this paper.The guidence rule designed in this paper is proved to be satisfied with the requirement of reentry guidance of the spaceship and fixed point landing by six degrees of freedom numerical simulation,some reentry movement orders and some good simulation conclusions are also obtained by means of numerical simulation concurrently.