Research For Autonomous Navigation Of Space Maneuver Vehicle Using SINS/Stellar/Magnetic Measurements

As a new military platforms, Space Maneuver Vehicle (SMV) has characteristics of rapidlarge-scale mobile, modular, autonomous intelligent and carrying the load. In order to improve thewartime SMV’s safety and ability of independent operation; and also because the combat environmentof the SMV, how to make the SMV to continue normal orbit mission must be considered once theground station in wartime were destroyed. This thesis will provide the autonomous navigationtechnology research of SMV, considering the wartime GPS signal effectively and failure situation putforward a kind of practical backup system navigation method.As a common and means mature navigation system, Global Positioning System (GPS) hasadvantages of all-weather, high accuracy, long-term stability and so on. But the fatal flaw of GPSsystem is out of our control. At first, in this paper when the GPS signal failure, the SMV non-motorcondition free movement section of the determination of the attitude and orbit backup solutions werestudied. Based on gyro/stellar the SMV autonomous attitude determination scheme; then based onthe SMV characteristics, tectonic stellar/magnetic field angle measurement equation, based on thedynamics of constrained/stellar/magnetic measurements platform of autonomous orbitdetermination methods and simulation and analysis are carried out to verify.Secondly, this thesis spatial maneuvering platform in orbit when performing the task, range ofattitude and orbit maneuvering state of the autonomous navigation scheme is studied. SINS can bewell applicable to the SMV’s mobility, In the existing navigation equipment foundation is constructedbased on the SINS/stellar/magnetic measurements SMV in mobile backup navigation system, andproposed a kind of multi information fusion based on Federated Filter(FF) autonomous navigationscheme that the system can make full use of sensor information, improve the real-time performance ofsystem and the precision of navigation.Because the precision of magnetometer is affecting the whole backup navigation systemprecision key, at last, the thesis analyzes when GPS signal effectively, not only can make highprecision navigation, but also can carry out SMV for remanence calibration. The GPS signal as the FKsubsystem was verified by using GPS signals the feasibility of remanence calibration and simulationand analysis are carried out, compare the difference between calibration SMV backup navigationsystem and uncalibrated backup navigation system.