zenith position 中文意思是什麼
zenith position
解釋
天頂位置-
( 3 ) the optimized strategy analysis on retrieval of gps water vapor the optimized strategy analysis on retrieval of gps water vapor has been carried out under different data processing schemes by using gps observation. the parameters selection problem has been resolved in gps water vapor retrieval process such as the optimum number of adopted igs stations, the relation between single station processing and united station processing, network layout, cut - off angle, zenith delay parameter, period, knot position and so on
（ 3 ） gps水汽反演優化策略分析利用gps觀測數據，使用多種數據處理方案，進行gps水汽反演優化策略分析，初步解決了進行gps水汽反演中引入igs站的最佳個數、單站解算和聯合解算的關系、網路布局、截止高度角、天頂延遲參數、時段長度、節點位置等選擇問題。 -
A celestial object will reach its highest position when passing through the semi - circle which includes the zenith and the nearest celestial pole, and this phenomenon is called upper culmination
包括天極天頂和天底的大圓圈稱為子午圈。當天體經過觀測者的子午圈時便稱為中天。
分享友人