基于图优化参数辨识的船体变形测量方法

As the accuracy of model parameters affects the accuracy of inertial matching measurements of hull deformation, this study proposes a method for parameter identification of the hull deformation model based on graph optimization and applies it to inertial matching measurements. By analyzing the influence of preset parameters of the hull deformation model on the Kalman filter of inertial matching measurements, the influence mechanism of parameters on inertial matching accuracy is obtained. By combining hull deformation historical data with hull deformation model parameters to be identified, the graph optimization model of hull deformation parameter identification is established, thus realizing the identification of preset model parameters of hull deformation inertial matching. Finally, the parameter identification results are substituted into the inertial matching equation to complete the accurate measurement. The simulation results demonstrate that this method effectively identifies the hull deformation parameters and ensures the accuracy of inertial matching measurements of hull deformation.