A method for low orbit being maintained in the satellite orbit plane is given in this gaper.
本文给出了近地卫星平面内轨道维持的一种方法。
It may be used in guidance, onboard orbit computation, and short term forecast of satellite orbit.
可直接用于制导，实时轨道计算，卫星轨道短期预报等。
The global gravity field precision measurement is important to geophysics, the satellite orbit etc.
全球重力场的精确测量对于地球物理学、卫星定轨等均有至关重要的意义。
This method has following advantages: (1)The method is useful for satellite orbit of any eccentricity.
本方法具有以下优点： （1）本方法适用于任意偏心率的卫星轨道。
If LEO satellite orbit changes, then the GPS occultation events number and distribution will be different.
不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。
If LEO satellite orbit changes, then the GPS occultation event's number and distribution will be different.
不同的LEO卫星，将使发生的掩星事件数量和分布有所差别。
The paper offers the computation method of Earth Resources Technology Satellite orbit meeting the requirements.
本文提出了满足设计要求的地球资源卫星轨道参数的计算方法。
The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period.
速度差各分量的变化具有很明显的周期性且与卫星轨道的运行周期相吻合。
The Chebyshev polynomial was applied to fit satellite coordinates of the broadcast ephemeris to realize satellite orbit standardization.
利用切比雪夫多项式拟合广播星历的卫星坐标，以实现卫星轨道的标准化。
A great lot of simulations and analysis are given, it shows that determining the LEO or MEO satellite orbit using this system is practicable.
通过对这些方法进行的大量模拟计算和分析，结果表明作为双星定位系统的一种潜在功能，用其对中低轨卫星定轨是可行的。
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。
With the simultaneously generated precision series, the response of ionospheric phase delay to the LEO satellite orbit biases is assessed and analyzed.
以同步生成的模拟精度序列为参照，就掩星观测中电离层延迟对LEO卫星轨道误差的响应程度进行了估计和分析。
The experiment result with real measurement shows that the new method can be used in real time autonomous satellite orbit determination with high accuracy.
实测数据的计算结果表明，新的定轨方法可以实时自主地得出卫星轨道的位置，并能达到较高的定轨精度。
This method is very powerful especially for problems concerning space debris mitigation that require a large amount of calculation of the satellite orbit lifetime.
在诸如空间碎片减缓这种需要非常大量的计算卫星寿命的问题中，新方法的价值得到充分体现。
A typical orbit of lunar probe includes earth parking orbit segment, earth-moon transfer orbit segment, lunar satellite orbit segment and moon-landing orbit segment.
典型的月球探测器飞行轨道包括地球停泊轨道段、地月转移轨道段、月球卫星轨道段和着月轨道段。
The application of Bi-satellite positioning system to LEO or MEO satellite orbit determination be analyzed and discussed some corresponding orbit determination methods.
对双星定位系统在中低轨卫星轨道确定中的应用做了详细的分析，给出了在该系统的测量模式下中低轨卫星定轨的几种方法。
The result is satisfactory by using a method of the artificial earth satellite orbit determination from range rate observations to fit the free-flight trajectory of rocket.
用人造地球卫星轨道计算的测速定轨方法，去拟合火箭飞行弹道的自由段，取得了比较满意的结果。
The semi-physical node controls the interface of Ethernet according to the satellite orbit and simulates the handoff of ISL, and so changes the topology of satellite network.
其中半实物仿真节点是自行设计的。仿真节点根据卫星运行轨道通过控制以太网接口模拟卫星网络星际链路切换，改变网络拓扑结构。
The research of simulation platform of satellite in orbit involves some field including dynamics of satellite orbit, computer simulation and geographical information technology.
在轨卫星运行仿真平台的研究涉及了卫星轨道力学，计算机仿真和地理信息技术等多学科领域。
Their main function is to simulate the satellite signal from the really satellite on the satellite orbit through changing code phase, Doppler shift, carrier and signal-to-noise ratio.
其主要功能就是通过改变码相位、多普勒频移、载波和信噪比来模拟卫星轨道上真实卫星发射的信号。
In this paper, the robust variance component estimation is introduced into the satellite orbit determination to resist the effects of outlying observations and to determine the weights.
针对卫星精密定轨过程中观测资料存在粗差以及观测资料的合理定权问题，将抗差方差分量估计引入到卫星精密定轨中。
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.
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。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
According to this difficulty, a kind of fast calculation method of satellite orbit-extract the orbits control points is put forward, and perspective frustum is combined to judge the orbits visibility.
针对这一难点，提出了一种卫星轨道快速计算的方法-提取轨道的控制点，结合透视裁剪体来判断轨道的可见性。
Astronauts will make a final attempt today to rescue a communications satellite from its useless orbit.
宇航员们今天将做最后一次尝试，把一颗通讯卫星从它无用的轨道上拯救出来。
A new satellite has been put into orbit around the earth.
一颗新的人造卫星被送上了环绕地球的轨道。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
Earth is the only one of the inner planets with a large satellite, the orbit of which is neither in the equatorial plane of Earth nor in the plane in which the other planets lie.
地球是内行星中唯一一个有大卫星的，它的轨道既不在地球的赤道平面上，也不在其他行星所在的平面上。
应用推荐