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1)  perturbation equation of Kepler orbit
Kepler轨道摄动方程
1.
A ZEM calculating approach for super-range intercept under the influence of perturbation is presented first,and then the linear dynamic equation of ZEM is obtained using the variational method and the perturbation equation of Kepler orbit.
首先设计了考虑摄动影响的适用于超远程拦截的零控脱靶量计算方法;其次使用变分法结合Kepler轨道摄动方程推导了线性的ZEM动力学方程;最后考虑固体推进拦截器的可控性约束条件设计了ZEM控制律并结合动力学方程确定指令推力方向。
2)  Kepler equation
Kepler方程
1.
This paper presents a new method for solving Kepler equation by Steffensen iteration method, which successfully conquers the disadvantages of low convergence speed in normal Fixed-Point iteration method , and at the same time avoids repeatedly derivative calculation and relatively complicated iteration structure in Newton iteration method, so it has high precision and fast convergence rate .
采用Steffensen迭代法求解椭圆轨道下的Kepler方程,克服了不动点迭代法收敛速度慢以及Newton迭代法需要重复计算导数值和迭代结构相对复杂等方面的不足。
2.
This paper studies the Noether symmetry,Lie symmetry and induced conserved quantity of Kepler equation under the condition of infinitesimal transform.
对平面Kepler方程在群的无限小变换下的Noether对称性、Lie对称性及其导出的守恒量进行了研究,给出了2种对称性之间的关系。
3)  Orbit perturbation
轨道摄动
1.
To the ground resolution performance for two typical bi-and multi-static spaceborne SAR orbit configuration:"tandem orbits "and "parallel orbits" , based on satellite state, considering earth ablatness and rotation, orbit perturbation, attitude errors, the geometrical model of bi-static spaceborne SAR was estabilshed.
针对两种典型的双/多站SAR轨道配置;“顺行”与“并行”的地面分辨特性,本文根据卫星运动状态,考虑了地球扁率和自转、卫星姿态和轨道摄动三大因素,建立了星载双站SAR的空间几何模型;基于矢量与梯度概念,给出了地面分辨单元的通用数学模型;分析比较了地球扁率和自转、卫星姿态和轨道摄动三大因素对于两种轨道配置地面分辨特性的影响。
2.
This paper analyses space geometrics of spaceborne synthetic aperture radar and equation of orbit perturbation, and brings forward a method of simulation of spaceborne SAR echo based on stop-and-go model.
分析了星载合成孔径雷达空间几何关系和卫星轨道摄动方程,提出了一种基于Stop and go模型的星载SAR回波信号仿真方法。
4)  orbital perturbation
轨道摄动
1.
The analysis of orbital perturbation of satellite is the key for satellite orbit determination.
在摄动力分类和轨道摄动偏差统计分析的基础上,给出了一种基于小波变换的卫星轨道摄动时间序列分析建模方法。
5)  Perturbation Path
摄动轨道
6)  Orbital kinetic equation(Orbital dynamic equation)
轨道动力学方程
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