结果表明，动力学平滑能有效改善几何法轨道精度。
The results show that the dynamic smoothing can improve the precision of geometric orbits.
随着低轨卫星的应用领域不断扩大，人们对低轨卫星的轨道精度要求越来越高。
With more and more application fields of Low Earth Orbit satellites, better and better precision of LEO is needed by many people.
我们希望做到的是通过将沿轨道系统测量仪器与卫星系统信号进行整合，将精度范围提升至两米。
What we hope to do is improve that accuracy to 2m by integrating on-the-track measurement devices with GNNS signals.
随着起重机运行时产生的冲击和振动，可能引起轨道安装的松动、连接件脱落、变形、裂纹、精度指标超差。
With the impact and vibration of the crane, it may cause the rail installation loose, the connector fall off, deformation, crack, precision index super difference.
公路-机动型可能精度较低，但是能通过增加卫星导航和部署能力来改进，像通过美国的全球定位系统（GPS）或俄罗斯的全球轨道导航卫星系统（GLONASS）部署到发射平台。
The road-mobile variant might have a lower accuracy but this can be improved by adding satellite navigation and positioning capability such as GPS or GLONASS to the launch platform.
该算法避免了频繁求解微分方程问题，没有求解多余的轨道，且求解的精度也容易控制，得到的流形图直观。
This algorithm avoids soling differential equation frequently as well as redundant orbit, and it is easy to control the accuracy and to get the picture of manifold.
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。
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.
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。
The experiment result with real measurement shows that the new method can be used in real time autonomous satellite orbit determination with high accuracy.
独特的雁尾槽设计，使得轨道系统牢固地托起动力单元座，使切割精度大大提高。
The track system trolley features a unique dovetail mounting design which securely holds the power unit base in position for maximum accuracy.
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。
This method provides better accuracy than approaches that modify the initial conditions of the C-W equations for a circular reference orbit.
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。
With the simultaneously generated precision series, the response of ionospheric phase delay to the LEO satellite orbit biases is assessed and analyzed.
在这些模型中并没有一种在任何情况下都是最好的，因此，对于特定轨道选择合适的大气密度模型对提高定轨预报的精度是非常重要的。
Therefore, it is very important to choose an appropriate atmospheric density model for a specific orbit to improve the accuracy of orbit forecast.
采用意大利amt直线导轨作为传动轨道，保证机器高速运转平稳且精度高。
The Italian AMT straight-line guide rails are used as drive rails to ensure the machines will run in a steady manner and at a high accuracy.
在火车轨道衡上，把添补煤炭的人工控制方式，改造成计算机自动控制方式，可提高装车精度和管理水平，同时降低劳动强度。
Reform the way to artificial control that increase coal, the way to automatic control in calculator, can increase accuracy and management level, lower the labor strength at the same time.
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。
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.
结果表明，两种自主导航方法的轨道估计精度满足深空巡航段的要求。
The estimation accuracy of the orbit is demonstrated to meet the requirement of the deep space cruise phase.
机器的有限精度会导致它的混沌序列进入周期轨道，解决有限精度的短周期效应又会产生序列的平衡问题。
A machine with finite precision would lead its chaotic sequences into periodic orbits, while solving the periodic effect of finite precision produce the balance problem of the sequences.
对于全球重力场测量卫星而言，其姿态和轨道的保持精度直接影响着全球重力场测量的精度。
For the gravity field measurement of satellite, the maintained precision of the gravity field measurement satellites attitude and the orbit affect the measurement precision directly.
仿真结果表明，在椭圆轨道的编队维持控制器中引入部分干扰内模可大幅度提高维持精度。
Numerical simulations show that the proposed controller containing some disturbance internal models can improve the formation maintaining accuracy a lot for the elliptical orbit.
当对导航精度要求较高时，轨道越高，尤其在高轨道类型中，应尽可能的选择精度高的敏感器以及尽量长的观测时间。
When navigation accuracy is highly expected , the sensor with higher accuracy should be chosen and the observation time should be longer , especially in high - altitude orbit.
新系统可以提高轨道测试仪的故障点定位精度，更快、更准地找到故障点，提高了维修效率。
The new system improves the accuracy of failure-point positioning. It helps to find the failure points more quickly and accurately, thus increasing the efficiency of maintenance.
最后，本文对单轨交通轨道梁生产用模板误差进行了研究，提出了提高轨道梁加工制作精度的建议。
At last, the error of the production formwork of track beam is researched, several proposals of improving the accuracy of track beam manufacture are recommended.
该机结构紧凑，刚性好，便于移动，密封油槽式轨道，齿链驱动，行走阻力小，经久耐用，切割精度好。
The machine structure is compact, rigid good, easy to move, sealed tank-style tracks, tooth chain drive, walk the resistance is small, durable, cutting accuracy and good.
操纵游戏车的高精度开关可以使车子暂时的停在轨道上。
Occasionally the highly sensitive switches that monitor the car's position will temporarily strand a car on the track.
应用此模型对轨道质量指数TQI数据进行分析预测，并对其精度进行检验。
Using this model, track quality index (TQI) data were predicted and their accuracy was tested.
系统建立适宜精度标准的平面控制基准，是保障无碴轨道铺设精度指标顺利实现的前提。
So the establishing of(horizontal) control datum with appropriate precision standards systematically is the precondition to make sure the precision of ballastless track laying.
连续波雷达是目前外火箭轨道测量的主要高精度设备，用数学方法估计和修正其系统误差有特别重要的意义。
The continuous wave radar is the main tracking equipment for trajectory observing at present. Estimation and calibration of system errors have important significance.
重点考察了月球重力场误差、观测量精度、初始时刻的先验轨道误差以及观测资料类型等对环月飞行器定轨精度的影响。
Especially, the effects of lunar gravity, observation accuracy, orbital error and observation data types on the orbital determination accuracy of the lunar orbiter have been carefully investigated.
计算结果表明在基线上用轨道改进定位方法是可行的，可以提高定位精度。
The research results show that the method of the orbit improvement and relative positioning can obtain a better accuracy, we illustrate this technique by processing phase observations of baselines.
计算结果表明在基线上用轨道改进定位方法是可行的，可以提高定位精度。
The research results show that the method of the orbit improvement and relative positioning can obtain a better accuracy, we illustrate this technique by processing phase observations of baselines.
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