Research And Application Of Navigation Data Processing And Trajectory Fitting Method For Flight Carrier

In recent years,the trend of data growth from all walks of life is extremely obvious,especially the rapid development of big data.In addition,astrophysics,geology,petroleum,meteorology,medicine and other areas make higher demand for data processing accuracy and speed.The carrier navigation data is described as the carrier movement law,which obtains the carrier coordinate trajectory data in real time according to the carrier movement state.With the use of these data,it not only can orient users to draw through the visualization technology,but also can predict the carrier movement trajectory in real time according to the current movement state,which has a high application value.With the study of the carrier navigation data processing,a complete set of flight carrier navigation data processing and trajectory fitting scheme with existing data smoothing,interpolation and fitting methods is proposed aims at the large error in current products,which includes Kalman filtering,Neville linear interpolation and Chebyshev polynomial fitting.At the same time,the scheme of carrier navigation data processing is applied to engineering practice.Besides,the flight carrier trajectory fitting and show software is designed and programmed.Finally,a simulation about the trajectory of the carrier is carried out by loading an equal-magnitude error on the preset trajectory in order to verify the validity of the proposed method..Through this paper,a complete set of flight carrier navigation data processing and trajectory fitting scheme and the motion trajectories of the different moving scenes of different target carriers are simulated.At the same time,a large amount of measured data is quoted and processed by the data processing scheme and software proposed in this paper.With the comparison of the fitting trajectory after processing and simulation test software,the experimental results show that the proposed method can control the axial root mean square error within 7.406e-2 meters by using the scheme of navigation navigation data processing proposed in this paper,which can meet the higher accuracy demand.