The Application of Beidou Three Frequency Constraints in the Quality of Baseline Solution for Multimode Data
In order to solve the problem that the wavelength is long and the calculation process is relatively complex in the baseline solu-tion of multi-mode system,this paper proposes a baseline solution method for multi-mode system based on Beidou three-frequency constraint.In this method,the ambiguity of the ionosphere is calculated firstly for the medium and long baselines,and then the basic ambiguity is separa-ted from the combined ambiguity.By substituting the basic ambiguity of the Beidou three-frequency into the GPS for baseline solving,the cor-responding ambiguity of the GPS is obtained,and the solution result is substituted into the observation value equation.The improved approach enables the baseline solution to be completed in a shorter epoch while ensuring the quality of the solution.It has been verified that the pro-posed method can greatly shorten the baseline solution time and improve the solution quality while ensuring sufficient accuracy.
万方数据
维普
