Research On Trajectory Detection And Three-dimensional Display Of Aircraft

As an important tool for exploring underwater fields,underwater vehicles have gradually attracted extensive attention at home and abroad.Underwater vehicles play an important role in both military and civilian fields.With the continuous research,in the marine field,the performance of the underwater vehicle has been putted forward higher requirements.By studying the attitude trajectory during the movement of the unerwater vehicle,it is of great value for evaluating the performance of the underwater vehicle and facing the complexity of the underwater environment,the high precision underwater positioning system can provide reliable protection for underwater operations.Therefore,this paper studies the positioning technology of the single under water vehicle.The main work of the thesis is:1、The working principle of the sensor in the navigation system and the data storage method of the sensor are analyzed,and the container data structure is designed to store the sensor data efficiently and improve the processing efficiency of the data.2、Based on the working principle of inertial navigation,the solution of the attitude matrix is analyzed.The design algorithm solves the attitude matrix.At the same time,according to the force analysis of the aircraft during the motion process,the sensor data is used to establish the velocity and position solution model.VC++ has written the underlying algorithm of positional solution,and compares and analyzes the calculated data to verify the rationality of the algorithm programming.3、Combined with the key error source in inertial navigation positioning,the geomagnetic filtering algorithm is designed.Based on Bayesian theory,the classical linear Kalman filter algorithm,extended Kalman filter algorithm,unscented Kalman filter algorithm and volume Kalman filter algorithm are studied respectively.The characteristic design experiments of the algorithm are compared and analyzed.The volume Kalman filter algorithm is selected as the optimal filtering algorithm.The effectiveness of the algorithm is verified by experimental models.4、the 3D simulation software is designed according to the motion trajectory solution of the underwater vehicle.The underwater 3-dimensional operating state of the underwater vehicle is displayed by OpenGL.