扁率

The effects of air drag and oblateness of the earth on relative orbit were derived by simulations under different conditions.

从动力学出发在考虑大气阻力和地球扁率的情况下推导出详细的航天器相对运动方程表达式。

The oblateness in each time can be calculated according to the conjectured change of the radius, the quality and the angular velocity.

通过推测地球的半径、质量和角速度的变化量，计算出地球各个时期的扁率。

In this paper, we discuss the effect of the Earth's oblateness and ionosphere on the retrieval, and analyze the result of the local curvature correction and the ionosphere calibration.

本文采用模拟的方法，分析其中地球扁率及电离层对反演结果的影响，并讨论局部圆弧修正及电离层修正的效果。

Determining the oblateness is extremely difficult.

测量扁率是极为困难的。

In this paper, we discuss the effect of the Earths oblateness and ionosphere on the retrieval, and analyze the result of the local curvature correction and the ionosphere calibration.

本文采用模拟的方法，分析其中地球扁率及电离层对反演结果的影响，并讨论局部圆弧修正及电离层修正的效果。

Taking fclio earth rotation and oblateness into consideration, the orbit perturbation, attitude errors and its stability effects on SAR Doppler parameters are analyzed.

在考虑地球自转和扁率的情况下，分析了轨道摄动、卫星姿态指向误差和稳定度对SAR多普勒参数的影响，并进行了数字仿真。

Arithmetic Analysis of Geocentric Vector Based on Earth Sensor for Spheral Model and Oblate Model;2. The accuracy of the measurements of the geocentric vector plays a key role in satellite navigation,but it is affected by the earth oblateness.

卫星利用紫外敏感器和星敏感器进行自主导航的方法中地心矢量的测量精度是影响导航精度的重要因素之一，而地心矢量的测量又受到地球扁率的影响。

Solar physicists have known about supergranules and the magnetic network they produce for many years, but only now has RHESSI revealed their unexpected connection to the sun's oblateness.

多年以前，研究太阳的物理学家就已了解超米粒及其产生的磁网，但直到现在，他们才通过RHESSI揭示二者与太阳扁率之间令人意想不到的联系。

Some factors such as the Earth's oblateness, the ionospheric dalay, the large-scale horizontal refractive index gradients in the atmosphere, and atmospheric multipath can influence the precision of retrieval.

地球扁率、电离层传播时间延迟、大气大尺度水平梯度、多路径传播现象等因素在某些高度范围影响大气反演的精度。

The system state transition matrix is deduced, so the zero effort miss of the interceptor can he solved with numerical method under considering the earth's oblateness effect of J2. In order to make the thrust direction change smoothly and make the zero effort miss decrease quickly, the engine thrust is decomposed along the line of sight direction and perpendicular to the line of sight direction, and the distribution proportion coefficient is designed based on the required velocity gain normal to the line of the sight.

推导了系统状态转移矩阵，通过数值方法求解得到考虑地球扁率J2摄动项的拦截器零控脱靶状态，在此基础上将推力分解到视线方向和垂直视线方向，并根据垂直视线方向需要速度增量大小设计了推力分配比例系数，使得推力方向平稳变化且能快速减小系统的零控脱靶量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了