人造地球卫星的轨道由于大气阻力和地球引力场等因素的摄动，其形状和近地点位置将不断改变。
The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.
针对卫星编队轨道构形在J2摄动干扰作用下被破坏的问题，给出了两种构形保持脉冲控制策略。
Two impulsive control strategys for formation keeping were put forward with regard to the problem that satellites formation could be destroyed under J2 perturbation.
小卫星在实际运行中受到多种摄动力的作用，这会对其轨道造成不同程度的影响，因此在小卫星的轨道设计与控制中，摄动是必须考虑的重要因素。
Micro satellite is under the influence of perturbative forces which would affect its orbit, so it is important to consider these perturbations in micro satellite orbit design and control.
研究近地轨道卫星编队构形在引力摄动作用下的长期演化机理。
The mechanism of Low earth orbit(LEO) satellite formation secular evolvement under the influence of gravitational perturbations is studied.
研究了在高空电离层中运动的带电荷的卫星受电感应阻力后对轨道根数产生的摄动影响。
The influences of the electronic induction drag on the variation of the orbital elements of a charged satellite moving in a magnetic-field-free ionosphere are studied.
研究了地球磁场对带电的非赤道卫星的轨道根数的摄动影响。
The perturbation effect of the earths magnetic field on the orbital elements of a charged satellite is further studied.
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.
对可见的卫星轨道部分先进行粗略定位，然后加入摄动模型进行精确求解。
For the visible parts, their rough location are done advanced, and then the perturbation model into the rough results is added in.
基于高斯摄动方程，推导了卫星在同时考虑J2和大气摄动情况下的轨道根数变化方程。
The variation equation of the satellite orbit elements under both J2 and drag perturbations was derived based on the Gauss perturbation equation.
基于高斯摄动方程，推导了卫星在同时考虑J2和大气摄动情况下的轨道根数变化方程。
The variation equation of the satellite orbit elements under both J2 and drag perturbations was derived based on the Gauss perturbation equation.
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