利用单层电离层改正模型就GPS卫星高度角对测距的影响作了探讨。
The single ionospheric layer correction model is used to delete the effects (l) on GPSranging, and the average ionospheric height is generally used in the calculation.
将模型应用于大气折光实时改正，建立了基于混合GANN的大气折光实时改正模型。
The model is applied to the real-time correction of atmospheric refraction coefficient and a mixed GANN real-time correction model is established.
本文在分析现有水准折光改正方法的基础上，导出了一种基于水准视线折光角的改正模型。
Based on the analysis of present methods for atmospheric refraction correction, a new correction model is put forward based on the refraction Angle of the line of sight.
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