Airborne Weapon SINS Transfer Alignment Technology

With the background of a model to-ground missiles transfer alignment under airborne environments, the transfer alignment algorism of “velocity and attitude” is determined to meet the requirements via transfer alignment algorithm analyzes and simulations based on sports car testing data using Matlab software. The main works of this dissertation are as follows:1. The characteristics of motion vector is analyzed, and the “velocity + attitude transfer alignment algorithm” is designed to meet the technique target requirements. Then, the error state equation of variable is established and the discrete filter equation and sequential processing algorithm are elaborated from the view of algorithm achievement. Finally, the two main factors which influence the transfer alignment, the elastic deformation and the lever arm effect, are analyzed.2. The verification platform of transfer alignment algorism is built in the environment of Matlab. Then, taking the F-16 model as the carrier, some simulation examples are designed to validated the influence factors of alignment including installation angle, dynamic / static elastic deformation, lever arm effect and comprehensive factors. Furthermore, the precision of the alignment algorithm is evaluated using flight data three minutes after the alignment. Finally some further simulation examples are designed to validated the influence of maneuver delay, the Kalman filter parameters and the transmission delay.3. The alignment test transfer off-line experiments are designed using the sports car. The validity of transfer alignment algorism is validated by off-line alignment operation using the experimental date collected from static alignment test, the ground shook wing dynamic alignment test and vehicle moving wing dynamic alignment test.4. The transfer alignment algorithm is determined by test analysis to meet the project requirement.