Research On Algorithm And Simulation Of The Integrated Navigation For Remote Orbit Maneuvering Vehicle

With the recent development of aerospace technology, space has become new field of human activities. Space is the best stratagem in protecting national security and interests, which is based on spatial maneuver capability. Hence, the research on autonomous and rapid maneuver and implement of space maneuver vehicle presents significance. The application of INS/CNS/GPS integrated navigation in space maneuver vehicle is presented in this paper for OMV navigation.Considering the acceleration is nonzero during maneuver of space maneuver vehicle, an assumption of SINS used in space maneuver vehicle is presented. Then, the algorithm of SINS and its error model are provided. Since the precision of INS decrease with time and space maneuver vehicle usually works for a long time, INS cannot work alone, which has to integrate with other navigation systems. Based on analysis of work principle and characters of sub navigation systems, this paper presents work modes and algorithms of GPS/CNS/INS integrated navigation for space maneuver vehicle. INS is selected as the main subsystem, which is added by GPS and CNS. The long term high precision information of position and velocity or pseudo-range and delta pseudo-range of GPS and attitude information of CNS is used to evaluate the drift of INS, so the position and attitude precision is improved. GPS/INS integrated navigation system is designed, which uses Kalman filter to integrate the information of GPS and INS. Then, state and measurement model of CNS/INS integrated navigation are presented. GPS/INS/CNS integrated navigation is established by combining GPS/INS and CNS/INS navigation. Finally, representative examples are given to verify the effectiveness of the GPS/INS/CNS integrated navigation.Investigation results are given below: Position/velocity integration mode of GPS/INS navigation can give stable position and velocity information and moderate precise attitude information. Attitude integration mode of CNS/INS navigation can give good attitude information at beginning which comes bad as time goes by because positioning error is increasing. Position/velocity/attitude integration mode of GPS/CNS/INS navigation can give good position, velocity and attitude information. GPS/CNS/INS integrated navigation can provide reliable precision during maneuver, which exert the advantages of continuous output of INS and avoid the disadvantages of discontinuous output of GPS and CNS. Therefore, GPS/CNS/INS integrated navigation...