Modeling of Vibration Environment onboard Spacecraft with Estimation of Kinematic Error of Determination of Its Angular Orientation

A problem is considered when the strap-down inertial navigation system estimates the kinematic error of the algorithm of the spacecraft-orientation determination (caused by vibration environment) depending on the applied method of numerical integration of kinematic equations. The possibility is shown for reducing the kinematic error at the expense of either increasing the sampling rate or raising the order of the integration method.