给出了一种描述J2摄动情况下编队飞行卫星相对运动的精确解析模型。
A precision analytical equation to relative motion of formation flying satellites for J2 perturbation is presented.
本文在神经网络直接控制船舶运动控制基础上，引入闭环增益成形算法构成闭环控制，以提高系统对环境干扰和过程参数摄动的鲁棒性。
But the robust performance is improved obviously when the closed loop gain shaping control algorithm is introduced into the ship motion system on the basis of neural network control in the thesis.
共面编队飞行的卫星星座的相对运动轨迹是一个椭圆，但卫星由于受摄动力的影响，其椭圆队形会发生变化。
The figure of the relative kinematical track of the formation flying will change which is in an ellipse because of the disturbing force from which the satellites suffer.
本文提出一种分析机车横向运动稳定性的方法，即利用复模态的矩阵摄动法来计算临界速度。
This paper presents a new method of analyzing locomotive lateral stability, that is, the critical velocity is calculated by use of the complex mode matrix perturbation theory.
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.
金星，地球和其他行星也使水星的运动受到摄动。
Venus, Earth, and other planets also perturb Mercury's motion.
进而导出了带有J2项摄动的环绕星相对运动方程，并给出了基于惯性笛卡尔坐标系运动学变量的相对轨道控制方法。
Then a control method considering the J2 perturbation based on Encke's linearization equation is proposed to maintain the relative motion of the constellation.
用摄动法分析刚球在非线性滑动摩擦力作用下的运动规律。
The perturbation method is used to analyse the motion of the rigid sphere under the action of the nonlinear sliding friction.
这些不确定性可以归结为对动力学系统运动方程序的摄动。
The uncertainty may be solved by the perturbation method to the motion equations of the dynamic system.
在一定条件下，设计的滑动模控制律使得系统沿预先设计的滑动流形的滑动运动对系统的参数摄动和外干扰具有不变性。
Under certain conditions, the designed variable structure control law makes the sliding mode along a specified sliding manifold invariable to the system perturbation and external disturbances.
并选用了矢量法中的摄动法，在主从手运动学模型的基础上分别建立主手和从手机器人的误差模型。
Then the error models of the master-slave manipulators are established separately using the perturbation way of the vector method on the basis of the kinematics model of the master-slave manipulators.
并选用了矢量法中的摄动法，在主从手运动学模型的基础上分别建立主手和从手机器人的误差模型。
Then the error models of the master-slave manipulators are established separately using the perturbation way of the vector method on the basis of the kinematics model of the master-slave manipulators.
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