查询词典 ephemeris

Based on satellite ephemeris and time data of the satellite coordinates of the celestial coordinate system.

详细说明：根据卫星星历和时间数据计算卫星在天球坐标系中的坐标。

Introducing the user algorithm of the broadcast ephemeris, the algorithms are explained on principle, which are Lagrange Interplation and Chebyshev polynomial simulation. Then comparisons of calculating of satellite coordinate with broadcast ephemeris and with precise ephemeris are made.

推导了广播星历用户算法，对GPS数据处理中常用的拉格朗日内插和切比雪夫多项式拟合从原理上进行了阐述，并对广播星历卫星坐标计算和精密星历卫星坐标计算进行了分析比较。

Currently we have no accurate ephemeris for Charon and no ephemeris for Neptunian satellites at all.

由于缺乏资料，冥王星的卫星 Charon 和海王星卫星的位置是不正确的。

Then comparisons of calculating of satellite coordinate with broadcast ephemeris and with precise ephemeris are made.

根据导航电文中的广播星历和IGS提供的精密星历对GPS共视比对结果中的几何时延误差进行了改正。

This paper introduces this new ephemeris format and applys it to predicting satellitic position and then analyses CPF ephemeris prediction accuracy.

该文介绍了这种SLR新星历和应用它进行卫星位置台站预报的情况，分析了其预报精度。

Currently we have no accurate ephemeris for Charon and no ephemeris for Neptunian satellites at all. The other satellite ephemeris should be correct.

基於目前我们尚未拥有Charon精确的星历表以及海王星的所有卫星也没有任何的相关资料，所以在显示的时候将会有这样的情形发生。

After the initial two nights, wait for a week or ten days, then obtain another pair of nights a day or two apart ephemerides can be generated using the Minor Planet Ephemeris Service ）.

在初始的两晚观测后，等待一周或10天，再获取另一对连续夜晚的观测或两个分离的夜晚的观测（可以使用 Minor Planet Ephemeris Service 计算星历表）。

There are many ways to calculate GPS satellite azimuth and elevation, but the precision is low. A new method to decide GPS satellite position using the broadcast ephemeris is presented, the way to checkup the precision is also given, and some research are made to analysis the error feature of the position which is calculated by the broadcast ephemeris as well, the results show the error is periodic.

GPS卫星高度角、方位角计算方法众多，但精度低；针对这点，提出了一种利用广播星历计算卫星高度角、方位角的方法，对该方法能够达到的精度提出了鉴定的途径，并分析了利用广播星历计算卫星高度角以及方位角的误差特点，结果表明利用广播星历计算的卫星高度角、方位角呈现出周期性变化的规律。

A new method to decide GPS satellite position using the broadcast ephemeris is presented, the way to checkup the precision is also given, and some research are made to analysis the error feature of the position which is calculated hy the broadcast ephemeris as well, the results show the error is periodic.

GPS卫星高度角、方位角计算方法众多，但精度低；针对这点，提出了一种利用广播星历计算卫星高度角、方位角的方法，对该方法能够达到的精度提出了鉴定的途径，并分析了利用广播星历计算卫星高度角以及方位角的误差特点，结果表明利用广播星历计算的卫星高度角、方位角呈现出周期性变化的规律。

Ephemeris data by comparison is very precise orbital and clock correction for each SV and is necessary for precise positioning.

Ephemeris 数据相比之下是十分精确的轨道和时钟纠正信息，每一颗卫星只会广播自己的Ephemeris 数据，这类数据的有效期或许有几个小时（取决于广播信息的包含的内容）。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。