采用相对轨道要素设计了理想的基准伴随轨道。
The periodic relative orbit was designed based on the relative orbit elements and the mission requirements.
根据相对轨道要素的变轨机动控制，进行编队飞行卫星群构型的初始化。
The configuration initialization of satellite formations is carried out based on orbit maneuver control...
其次，针对编队飞行卫星队形保持控制，以对地等张角绕飞编队为背景设计相对轨道模型预测控制算法。
Secondly, a model predictive control method is designed for the satellite formation keeping and formation of invariant angular to the ground as the background.
为了得到更丰富的相对轨道，同时考虑到相对速度测量困难，研究了仅利用位置反馈进行相对轨道设计的方法。
With the difficulty of measuring relative velocity considered, a relative orbit design method is proposed to obtain diverse relative orbits with only position feedback.
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.
基于相对轨道根数法，根据卫星相对运动方程，提出了“自然队形”的概念及队形设计的一般方法，并给出了具体的例子。
A concept of natural formation and a general RT design method are proposed based on the relative Orbital Element method and the relative motion equation in this paper. An example is given.
建立了小卫星相对轨道和姿态的误差动力学模型，根据作业任务和姿态指向要求确定了小卫星相对轨道和姿态的期望运动；
Positional and attitude error dynamics model of small satellite relative to a target satellite was derived, then the desired relative orbit and desired attitude of small satellite were designed.
这个高度相对于维珍银河及其它亚轨道空间旅游工具开发者所承诺的100千米高度而言差得一段距离。
That altitude is a long ways from the height of more than 100 km promised by Virgin Galactic and others developing suborbital space tourism vehicles.
径向速度法，即观察某颗行星环绕恒星的轨道所引起的恒星相对地球来往的速度变化。
The radial velocity method, which looks for changes in a star's velocity toward or away from Earth triggered by a planet's orbit around that star.
带负电荷的微粒子——电子，在绕核运行中，相对于一个纯粹的球形而言，其轨道偏离度远远小于0.000000000000000000000000001cm。
Electrons, negatively-charged particles which orbit the nuclei, deviates from absolute roundness by less than less than 0.000000000000000000000000001cm.
任何时候你在分子轨道图里画轨道，你都要画出相对应的分子轨道。
So any time in a molecular orbital diagram you draw in orbitals, you need to draw the corresponding molecular orbitals.
这有点像是突然转向的赛车在环形赛道上相撞，月亮们也在同一轨道公转，所以他们之间的相对速度很小。
Like racing cars that swerve and hit each other on a circular track, the moons' speed relative to each other is low because they travel in nearly the same orbit.
但是相比太空飞船，卫星着陆时需要相对小的速度，这将需要三天的时间，意味着消耗更少的燃料进入绕月轨道。
But the satellites will arrive with less relative speed than spacecraft making the trip in three days, which means less fuel will be needed to brake and drop into lunar orbit.
未来的研究将确定细胞命运的决定因素，观察其分布的相对主轴的方向和轨道随后兄弟细胞的命运。
Future studies will have to identify cell fate determinants, observe their distribution relative to spindle orientation and track the subsequent sibling cell fates.
目前，它正在与地球相对位置不变的轨道接受严格的测试，希望2008年第1季度提供服务。
It is now in geosynchronous orbit undergoing rigorous testing and is expected to begin service in the first quarter of 2008.
同时冥王星的轨道相对于海王星也严重倾斜。
Pluto's orbit is also steeply inclined relative to Neptune's.
和这个计划不同，更多研究者的努力方向是使用轨道高度22300英里的地球同步卫星，它们和地球的位置相对固定，可以不间断地传送能源。
Moststudies have focused instead on geostationary satellites, those whoseorbit 22, 300 miles above the Earth keeps them over a single location, to which they would transmit a continuous flow of power.
如果得到证实，KOI 500周围的行星是已发现的行星轨道中最小的，最内层的行星中即使相对凉爽的也很热。
If confirmed, the planets around KOI 500 will be in some of the smallest orbits around their star yet found, and the innermost would be bathed in heat from even a relatively cool star.
结果表明，在所有量子化学多数中，只有最低空轨道能量（ELUMO）与最低抑菌浓度（MIC）值的相关度相对较高。
Correlation analysis results were shown that correlation coefficient between MIC and ELUMO was relatively high among quantum chemistry parameters of antimicrobials.
基于经典轨道要素偏差法分析了相对运动特性和大气阻力对相对运动的影响。
By using the classical orbit element differences method, the periodic characteristics of relative motion and the influence of atmospheric drag on relative motion were analyzed.
相对于摩纳哥赛道伊斯坦布尔公园是一个比较传统的轨道，我们有一个更明确的想法。
Compared to the Monaco track the Istanbul Park is a more conventional track and we have a more definite idea.
本课题提出治理啃轨的新方案是纠正车架相对于轨道的偏斜，力图保证车轮沿着轨道的中心线行走。
The writer think out that the completely new way to settling the gnaw rail problem is correcting the deflexion of crane frame to the rails and keep the cartwheel runes along the rail central line .
针对圆(近圆)轨道航天器相对运动的固定时间状态转移问题，提出了一种基于导航点的多脉冲优化轨迹生成策略。
An optimal trajectory generation strategy based on way-points is presented to solve the fixed-time state transition for spacecraft relative motion in a circular orbit.
轨道结构与桥梁共同作用的力学计算模型是解决轨道纵向位移阻力与梁轨相对位移相互作用计算问题的关键。
The key is that to resolve the interaction between bridge and track, that the mechanics model of this interaction, as well as rail longitudinal resistance to displacement between rail and beam.
通过反复测量他们之间的距离，科学家们可以计算出地球和月球相对彼此，围绕太阳公转的轨道。
By repeatedly measuring the distance between them, scientists can calculate the orbits of the Earth and the moon around the sun relative to each other.
工程实践应用表明，在测角精度比较低而测距、测速精度相对高的情况下，该方法可有效地提高轨道确定的精度。
Applications show that the method effectively increases orbit determination accuracy at low angular measurement accuracy and high ranging and range rate measurement accuracy.
工程实践应用表明，在测角精度比较低而测距、测速精度相对高的情况下，该方法可有效地提高轨道确定的精度。
Applications show that the method effectively increases orbit determination accuracy at low angular measurement accuracy and high ranging and range rate measurement accuracy.
应用推荐