Abstract
This paper deals with transfer alignment between the slave inertial navigation system (INS) of scientific experiment and the master INS of space moving platform. Firstly, the navigation equations of the master and slave INS in J2000 inertial frame are presented. Then, we derive the state equations of transfer alignment model in detail, which include the error equations of the slave INS navigation equations, and the equation of misalignment vector between the master and slave INS. Also, the attitude matching measurement equation is derived. Finally, we obtain the optimal state equations of transfer alignment and the reduced-order state equations in inertial frame. A high precision orbital trajectory generator for INS is designed which has taken the orbital perturbations of space vehicle into account. The simulation results show preliminarily that the misalignment vector error is less than 1 arc-minute under some proper maneuver condition in 10 seconds.
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