By establishing mathematical models, the attitudedrift of the uncontrolled spin satellite is numerically simulated, and the simulated results are compared with the telemetry data.
建立数学模型，对无控条件下自旋卫星的姿态漂移情况进行数学仿真分析，并与实测结果进行比对。
2
The state equations of the system are established on the basis of the relation between attitude error quaternion and the gyro drift.
本文以姿态误差四元数与陀螺漂移误差之间的关系为基础，构建了系统状态方程；
3
The measurement error of vehicle's attitude caused by the drift of platform reference is also analyzed.