Research on GNSS Control Measurement Data Processing Method Based on Different Adjustment Software
In this paper,a control measurement project of an engineering site is taken as the research object.By optimizing the layout method of GNSS control network,high-quality independent baselines are adopted to form the GNSS control network of the project,and three-dimensional unconstrained adjustment is used to check the gross error of the observation baseline to ensure the quality of the baseline.Two kinds of GNSS data processing software,TBC and COSA,were used for adjustment calculation of GNSS control net-work,respectively.It was verified that under the condition of the same observation data,the same control network shape and the same intitial data,there would be some differences in the accuracy index and calculation results of different adjustment software,but the differences in results were relatively small.Therefore,in the process of GNSS control measurement,a variety of adjustment software can be used for independent calculation,and the results are mutually verified to further ensure the reliability of the control measure-ment results.
GNSS control measurementnetwork shape designadjustment calculationmean square error
万方数据
维普
