Numerical simulation between astronomical atmosphere refraction and mapping function

To study the inherent relation between astronomical atmosphere refraction and delay,this paper simulates the mapping function in atmosphere refraction delay making use of the tabular data of the atmospheric refraction table,The numerical value shows that the method is feasible for using the measured values of the astronomical atmospheric refraction to simulate in the mapping function.At the same time,it also shows that the form of mapping function is secondary and the accuracy of simulation can be improved with the increase in the number of terms of continued fractions.The conclusion has some reference value and instructional meaning for improving the computational accuracy of data processing,decreasing the instrumental observational cut-off elevating angle and increasing the availability factor of the instrument.