This paper introduces methods of calculation the initial orbit of the satellite only with the velocity vectors of two epochs.
本文介绍了仅用卫星两个时刻速度向量计算卫星初轨的方法。
Elysium's initial plan was to run a service called Shooting Star Memorial, in which ashes are briefly sent into orbit and return to Earth as a bright streak across the atmosphere.
“极乐世界”最初的计划其实是开始一项名为“流星纪念”的服务，将骨灰运送到轨道然后划过大气层降落到地球上。
All the satellite needs in order to move in its orbit is the initial speed given it by carrier rocket.
卫星要在其轨道上运行所需要的只是由运载火箭给它的初速度。
This method provides better accuracy than approaches that modify the initial conditions of the C-W equations for a circular reference orbit.
与对圆参考轨道的C -W方程初始条件进行修正的方法相比，该方法有更高的设计精度。
The initial testing shows that there is a better coincidence between the real motion orbit and the modified model.
初步的测试表明，介质实际运动轨迹与修正后的模型有更好的吻合。
The results can be used as approximate values of the initial satellite orbit to correct the orbit by integration or calculate satellite ephemerides.
计算结果均可以做为轨道改进和计算星历时的人卫初轨近似值。
Based on the research of orbit determination by using two GPS satellites, this paper discusses the initial value problem and provides an effective method of getting initial value.
研究了用两颗全球定位系统(GPS)卫星粗略确定低轨卫星轨道的问题，并着重讨论了其中的初值问题，给出了一种有效的初值方法。
According to the target spacecraft's orbit height and the chaser spacecraft's orbit height, the design method of the target's initial phase for the rendezvous orbit was presented.
根据目标飞行器轨道高度和追踪飞行器入轨轨道高度，给出了目标飞行器交会对接轨道初始相位的设计方法。
The simulation results show that the precise initial guidance method is rational and efficient, and it can greatly improve the accuracy of orbit interception with an extra little fuel consuming.
仿真结果表明，所提出的精确初制导方法合理、有效，能在增加较小燃料消耗的情况下，大大提高轨道拦截的制导精度。
With passive control, the solar sail orbit is stable and its initial momentum determines the orbit parameters.
在只考虑轨道动力学的情况下，分析了太阳帆的被动控制。
Chaos initial value sensitivity refers to small changes of initial value can lead to great changes of chaotic orbit.
初值敏感性是指混沌系统中初值的微小变化就会导致混沌轨道的很大变化。
Sensitive dependence on initial conditions means that little difference on initial conditions will lead to great changes on chaotic orbit.
初值敏感性是指混沌系统中初值有一微小变化就会引起混沌轨道的很大变化。
Second, the initial point and transfer time are same for different object relative orbit, and the minimum consumption of fuel is proportional to the expansion deflection.
不同膨胀系数时施加脉冲的时刻不变，最优的燃料消耗与膨胀变化量成正比；
In this paper, the precise initial guidance law based on velocity gain guidance and the state transition matrix for orbit interception were proposed.
对于轨道拦截问题，给出了一种基于速度增益制导和状态转移矩阵的精确初制导方法。
In this paper, the precise initial guidance law based on velocity gain guidance and the state transition matrix for orbit interception were proposed.
对于轨道拦截问题，给出了一种基于速度增益制导和状态转移矩阵的精确初制导方法。
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