本文介绍了在运载火箭姿态控制系统设计中进行系统动态过程计算的方法。计算时对系统的动态过程计算公式进行分析后,可采取五项措施,从而改变了以往的计算方法,简化了计算程序,保证了计算精度,使之得到满意的计算结果。通过大量实际计算,这些措施能使动态过程的计算得以实施,计算所需计算机机时为通常算法的十分之一。尤其是E-M积分法,方法简单,计算量小。 This article describes the method of calculating the dynamic process of the system in the design of the launch vehicle attitude control system. After calculating the calculation formula of the dynamic process of the system, five measures can be taken to change the previous calculation method, simplify the calculation procedure and ensure the calculation accuracy so as to obtain the satisfactory calculation result. With a large number of actual calculations, these measures enable the calculation of dynamic processes to be implemented, one tenth of the usual algorithms for calculating the required computer. Especially E-M integral method, the method is simple, the calculation is small.