组合导航技术在可重复使用运载器再入段的应用研究

Application research of integrated navigation technology in re-entry of reusable launch vehicle

结合国内外可重复使用运载器的发展现状及各导航方法的特点,根据飞行器再入飞行段动力学方程,建立再入段飞行轨道并提出适用于再入飞行其各段的导航方法。对再入飞行中的末端能量管理段进行全面研究,设计并进行INS和INS/SAR导航滤波计算机仿真,并对仿真结果进行了误差分析。

After analyzing all kinds of the navigation method and development of reusable launch vehicles, we establish a trajectory model of re - entry, which is based on the dynamics function of shuttle re - entry, and present different integrated navigation method for different re - entry phase . By analyzing the characteristic and applicable area of navigation method, we discuss the navigation simulation result based on INS and INS/ SAR by research the terminal area energy flight phase character, then present a method to improve reliability and independence of TAEM navigation.