用人造地球卫星轨道计算的测速定轨方法,去拟合火箭飞行弹道的自由段,取得了比较满意的结果。建立在通用变量和特别摄动法基础上的这个方法,在收敛性、解系统差的能力和任务的适应性等方面,都具有明显的优点。 With artificial orbit satellite orbit calculation of the orbit determination method to fit the rocket flight trajectory of the free section, and achieved satisfactory results. This method, which is based on general variables and special perturbation methods, has obvious advantages in terms of convergence, the ability to solve system differences and the adaptability of tasks.