摘要
对萤火一号(YH-1)火星探测器姿态控制分系统中石英微电磁系统(MEMS)陀螺的应用进行了研究。对MEMS陀螺进行了温漂标定试验和年漂测试专项试验。根据试验结果对MEMS陀螺进行建模,用高低温零位在轨标定算法对MEMS陀螺零位进行一次修正,再用星敏感器和陀螺联合定姿算法对高低温零位标定残差进行二次在轨修正。数学仿真结果表明:高低温在轨修正算法和卡尔曼滤波算法有效,提高了石英MEMS陀螺的测量精度。
The application of the quartz MEMS gyro used in the attitude control subsystem o5 YH-1 Mars probe was studied in this paper. The temperature shift calibration and years bias test of the gyro were done. The modeling of the gyro was established according to the test results. The first null correction of the gyro was made by the on- orbit calibration algorithm of high-low temperature null. The second on-orbit correction of the high-low temperature null calibration residual error of the gyro was updated by the star sensor and gyro joint attitude determination algorithm. The simulation results showed that the on-orbit calibration algorithm of high-low temperature and Kalman filter were effective, which improved the measurement accuracy of the gyro.
出处
《上海航天》
2013年第4期79-85,共7页
Aerospace Shanghai
