2) GPS ephemeris parameters
GPS星历参数
1.
The present research situation for GPS ephemeris parameters and their algorithms is firstly introduced in this paper.
介绍了GPS星历参数及其算法研究的现状,分析了GPS星历参数的比例因子与星历参数设计需考虑的四种因素之间的联系,讨论了星历参数比例因子的计算过程,并使用模拟数据对其进行了验证。
3) GPS broadcast ephemeris
GPS广播星历
1.
The variations of orbit error of GPS broadcast ephemeris from 2002 to 2006 are analyzed, and some effects on the orbit accuracy are discussed.
分析了2002—2006年GPS广播星历轨道误差的变化情况,并对其影响因素进行了讨论。
2.
On the basis of the orbit character of the LEO satellite and the advantages of definite physical meanings, quickly creating, high precision, fewer parameters of GPS broadcast ephemeris, a new sort of ephemeris parameters for calculating LEO satellite location is designed and analyzed through a example.
在分析低轨卫星轨道变化特征的基础上,考虑GPS广播星历参数的物理意义明确、生成速度快、精度高、参数少等特点,设计了一套适于低轨卫星在轨位置计算的星历参数,并对其算法进行了试算。
3.
In accordance with the fitting GPS broadcast ephemeris parameters,prediction ephemeris was used to make fitting calculation and analysis,in order to evaluate different GPS broadcast ephemeris parameters by using reducing its different ephemeris parameters.
为了更好地利用广播星历参数进行导航电文参数的优化设计,在拟合GPS广播星历参数的基础上,通过减少其中不同的调和项系数,分别对预报星历进行拟合计算分析,以对不同的GPS广播星历参数进行质量评估。
6) onboard GPS
星载GPS
1.
A study of orbit determination methods using undifferenced dual-frequency onboard GPS P codes;
基于星载GPS双频P码的低轨卫星综合定轨方法研究
2.
Study and Software Implementation of GPS Data Pre-processing and Onboard GPS Kinematic Orbit Determination;
GPS数据预处理和星载GPS运动学定轨研究及其软件实现
3.
Based on the geometric, dynamic and reduced dynamic precise orbit determination (POD), a kinematic POD by the onboard GPS zero-differential phase observations was discussed and programmed.
在几何法、动力学法和减缩动力学法定轨基础上,探讨了星载GPS相位观测值非差运动学 定轨方法及其实现程序。
补充资料：星历
1.天文历法。 2.星辰。 3.指代年岁。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条