片语

Satellite orbit precision determination卫星精密轨道确定

GPS orbit determinationGPS轨道确定

orbit calculation[航][天] 轨道计算

statistical orbit-determination统计定轨理论

high precise orbit determination精密定轨

dynamic orbit determination动力学定轨

theory of satellite orbit-determination卫星定轨理论

combined orbit determination联合定轨

Orbit Determination Accuracy轨道精度

英汉例句

• 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 new version of j77 is found to be obviously advantageous to the precision orbit determination of ers-1, which is at the height of 800km, compared with other atmospheric models.

  并将其应用于高度为800 公里ers-1卫星的轨道计算，结果表明：修订后的j77模型比其它大气模型在测轨精度上有明显改善。

• 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。

• 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。

• this paper presents a new improved algorithm of state prediction in extended kalman filtering process about orbit determination for satellite with astronomical method, namely iterated algorithm.

  针对压缩机运行状态预报所具有的模糊性问题，尝试将模糊神经网络理论应用于压缩机运行状态预报，提出了预测的方法与步骤。

• based on research of gamit software, the gps orbit determination method were studied and discussed. this paper gives a valuable strategy for regional orbit determination in china.

  本文基于美国gamit软件研究的基础上，对于gps实时精密轨道确定的方法进行了细致的研究，提出了在中国区域范围内有实用价值的区域定轨方法与方案。

• 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。

• 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。

• high precise real-time autonomous relative orbit determination between distributed spacecraft is a key technology in the task of spacecraft formation maintenance.

  分布式航天器间相对位置的实时高精度测量是分布式航天器实现空间队形保持的关键技术之一。

• a direct method is presented for estimating small perturbations in orbit determination problems, error bounds are discussed and numerical examples are given.

  结合一次样条用参考方程法估计多点定轨问题中小干扰输入项，给出误差界限的估计原则，并作了数值试验。

• it is concluded that for the lunar missions not aiming at improving lunar gravity, such as the 「chang er 1」, the reduced dynamic method of orbit determination is effective in absorbing gravity errors.

  结果表明对于一个不将月球重力场作为主要科学目标的探月计划（如「嫦娥1号」），减缩动力学方法是一个简单、有效地提高环月飞行器定轨精度的方法。

• abstr: earth rotation parameters (erps) are important basic data for satellite precise orbit determination (pod) , high - precision space navigation and positioning.

  文章摘要：地球自转参数是卫星精密定轨、高精度深空导航与定位等必不可少的重要基础数据。

• in the free flight segment, effects on the state error propagation caused by prior state estimation errors and orbit determination errors of the chasing spacecraft were studied.

  在自由飞行段，分析了追蹤航天器估计状态误差的先验值和测轨误差对状态误差传播的影响。

• 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。

• based on the target′s phasing time analysis of orbit determination error, orbit control error and orbit prediction error, the strategy of the target′s phasing orbit maneuver was developed.

  基于定轨误差、轨道控制误差和轨道预报误差的调相时间分析，制定了目标飞行器调相控制策略。

• the result shows that using velocity measuring data after error correction in preliminary orbiting computation can effectively improve the orbit determination precision.

  计算结果表明，使用经各种误差修正后的测速数据参与初轨计算能有效提高定轨精度。

• this paper proposes an accurate orbit determination technique to accurately determine orbit elements of a spacecraft equipped with a gps receiver according to navigation messages from the receiver.

  利用gps接收机的导航信息精确确定接收机载体航天器的轨道根数。

• an approach to set up a vlbi/slr reference frame by colocation observation at vlbi and 7 fixed slr stations in china is suggested and its role in gps orbit determination is also studied.

  最后，提出了利用vlbi站和国内现有slr固定站的并置观测建立我国vlbi/slr地球参考框架的这一途径，并对此框架的作用进行了探讨。

• on the other hand, the precision gravity model is important guarantees for obtaining high precision orbiting results using the dynamic or reduced-dynamic orbit determination method.

  低轨重力卫星轨道的精确确定是获得精密地球重力场模型的前提，而精密重力场模型又是获得高精度定轨结果的保证。

• this paper studies the orbit determination of leo satellites using gps receivers of single frequency in condition of not depending on gps differential reference stations.

  研究在不依赖于gps差分基準站的情况下，利用单频gps接收机对低轨卫星进行定轨的算法。