英语释义

• an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year;

  "today computers calculate the ephemerides"

片语

Ephemeris File星历文件

operational ephemeris作业星表

Ephemeris Model星际表模型

ephemeris parameter星历参数

precise ephemeris[测][天] 精密星历表；精确星历表

Ultrarapid ephemeris超快速精密星历

ephemerides ephemeris的复数

forecasting ephemeris预报星历

broadcast ephemeris[测] 广播星历；广播天文历

英汉例句

• an orbit modeling formula is proposed, through which one can interpolate the satellite state vector on the whole orbit arc with a high precision by means of ephemeris data.

  为提高几何校正的精度，提出一种由几个离散点的值内插整个弧段上卫星状态向量的轨道模拟算法。

• based on the gps broadcast ephemeris parameters, the nonlinear least square fit algorithm of broadcast ephemeris parameters was developed, and the relevant calculation formulas were derived.

  基于gps广播星历参数，研究了导航卫星广播星历参数的非线性最小二乘拟合算法，并推导了相应的计算公式。

• newton discovers gravitational theory, built up classic mechanics, he uses a formula the biggest ephemeris sport in the cosmos and minimum grain sport of the son unify.

  牛顿发现万有引力定律，建立了经典力学，他用一个公式将宇宙中最大天体的运动和最小粒子的运动统一起来。

• it also shows that the variety laws of the fitting result of broadcast ephemeris for meo and igso satellites are similar to each other and are different to geo satellites.

  meo和igso卫星在一个轨道周期内星历参数拟合结果的变化规律相近，但是与geo卫星的差异较大。

• the feasibility and rationality of the autonomously updated ephemeris and data processing flow for the autonomous navigation constellation is demonstrated preliminarily.

  初步证明导航星座自主导航信息处理流程及其星历更新算法的合理性和可行性。

• in this paper, satellite ephemeris and gps carrier-phase observations are used to calculate the velocity/acceleration of vehicle.

  本文采用卫星星历和gps载波相位观测值，计算车辆的速度/加速度。

• in this paper, the definition of the celestial ephemeris pole (cep) in the 1980 iau theory of nutation is discussed.

  本文讨论了1980iau章动理论中关于天球历书极的定义。

• using the precise ephemeris and the precise satellite clock correction can realize the precise point positioning(ppp).

  精密单点定位的实质就是利用精密星历和精密卫星钟改正来实现定位。

• the scheme can anticipate user's location by using ephemeris message.

  该策略利用了星历信息的确定性来预计用户的位置。

• the results show that these methods are adapted well to all types of navigation satellite, and the error of the fitting ephemeris is less than several centimeters, even several millimeters.

  结果表明，改进后的拟合方法能适用于各种类型的导航卫星轨道，拟合精度在厘米级或者毫米级。

• if you look up your heliocentric ephemeris you will find that 「in the latter part of february 1929」 there was a conjunction in cancer! no wonder why the morning was 「sunshiny」!

  假如你查阅以太阳为中心的星历表你就会发现在1929年2月的后段时间，出现了一个在巨蟹座的重合！

• furthermore, the computer simulation technique is applied to study initially the distortion law of ccd satellite images caused by errors of ephemeris parameters and initial attitude angle.

  利用计算机仿真技术初步研究了星历参数和初始姿态角误差引起的ccd卫星影像畸变的规律。

• the results show that the orbit accuracy of gps broadcast ephemeris in 2006 was much better than that in 2002 especially after the implementation of l-aii project.

  分析表明，由于l-aii计划的实施和其他工作，2006年gps广播星历的轨道精度较2002年有了较大的提高。

• supposing we wish to make a horoscope for a native born august 3rd 1901, we have to buy an ephemeris for the year 1901 at some book store.

  假设我们希望建立一个1901年8月3日当地出生的诞生星辰。我们就必须到书店去买1901年的星历表。

• when their orbit eccentricity or inclination are near zero, some problems may occur when the gps kepler orbit elements fitting method is applied to fit their broadcast ephemeris parameters.

  导航卫星一般采用近圆轨道，当卫星轨道偏心率或者轨道倾角接近于零时，利用gps卫星开普勒轨道根数拟合卫星广播星历会出现一些问题。

• the first is the comparison of the gps precipitable water vapor between final ephemeris and ultra-rapid ephemeris which the relative coefficient is 99.

  将精密星历与快速预报星历gps可降水量进行比较，两者的相关系数为99。

• in this paper, we describe two methods for computing the coordinates and velocities of satellites by using the broadcast ephemeris of the 「transit」 satellites.

  本文介绍利用子午卫星的广播星历表计算卫星坐标和速度的两种方法。

• 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準化。

• this paper analyzed the characters and rule of the satellite ephemeris error. it proposes the model of the diagnosis and forecast for the gps broadcasting ephemeris error.

  分析了gps卫星星历误差的影响特征与规律，提出了广播星历误差影响诊断与预测模型。

• in this paper, a new method for calculating the coordinate and velocity of the satellite by means of the broadcast ephemeris has been presented.

  本文介绍了利用广播星历表计算卫星的坐标和速度的一种方法。

• we have to acquire the following 「tools」 to work with: an ephemeris for the year the horoscope is to be made.

  我们必须在工作中使用「工具」，出生那年的一个星历表。

• meanwhile, the positioning errors of gps and its correction models are discussed at length, particularly the practical example with regard to satellitic ephemeris error is computed and analyzed.

  同时，对gps定位中的误差来源与改正模型进行了详细讨论，特别对gps广播星历轨道误差进行了详细试验分析与研究。