地球非球形摄动

计算给出了一日内的卫星轨道，反映了在地球非球形摄动下轨道的变化情况，且对轨道面的进动进行了计算。

The orbit variation in one day under the nonspherical perturbation is shown and the motion of the orbit plane is computed .

考虑地球非球形J2项摄动，采用协方差分析描述函数法与MonteCarlo仿真方法，分析了初始状态误差对远程交会的影响。

Considering the J2 perturbation , the nonlinear error analysis for the long-distance rendezvous trajectory with initial state errors is performed by using covariance analysis description equation technique ( CADET ) and Monte Carlo simulation .

在考虑地球非球形引力J2项摄动时，用Lyaounov势函数法推导了连续和离散两种控制方法，以保持与控制运行于椭圆轨道的小卫星编队飞行位置。

The continuous and discrete control methods to keep the position of micro-satellite forming flying that flied in ellipse orbit when J_2 perturbation was in consideration were derived by using Lyapunov potential function in this paper .