Dam Deformation of High Precision GNSS Satellite Research on Calibration Method of Monitor

In order to ensure the data validity of the GNSS dam deformation monitor with high precision, a method for calibrating the GNSS satellite dam deformation monitor with high precision is presented, which makes the GNSS satellite dam deformation monitor with high precision trace to the national standard effectively. First, the working principle of the GNSS satellite dam deformation monitor with high precision is analyzed. Next, using the GNSS receiver calibration field, calibrate the indication error of the high-precision GNSS dam deformation monitor. Finally, the calibration data is summarized and analyzed, and the uncertainty of the calibration results is evaluated. The experimental results show that the plane measurement accuracy of the GNSS dam deformation monitor with high accuracy is 2mm. The height measurement accuracy is 1 mm and the uncertainty is 0. 6mm, to meet the traceability requirements of high-precision GNSS satellite dam deformation monitor.