历元,在天文学是一些天文变数作为参考的时刻点,例如天球座标或天体的椭圆轨道要素,因为这些会受到摄动而随着时间变化。这些会随着时间变动的天文变量可能包括天体的平黄经或平近点角、轨道相对于参考平面的交点、轨道近日点和远日点或拱点的方向、其轨道半长轴的大小等等。
提出了一种基于双频观测数据的单历元周跳探测和修复方法。
A new method is proposed for detecting and repairing cycle slips in GPS navigation based on the dual frequency observations.
提出相邻历元间差分算法,大大简化了观测方程,同时避免积分常量的计算。
A differential arithmetic is proposed for simplifying the observational equation as well as for avoiding the computation of the unknown integer constant.
其次,研究了历元状态滤波算法,分析其工作原理,并推导出了状态方程和测量方程。
Secondly, epoch state filter is studied by analyzing its working principle and deriving the state equation and measurement equation.
I shouldn't say list, those two tuples, and walk through them to find the pieces that match up.
除数数组进行对比,我不该说数组的,是元组,遍历这两个元组找到相同的元素。
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