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萤火一号火星探测器MEMS陀螺姿态确定技术

Yan-hong YUAN,Hai-ning YIN,Lei-yi FAN,Qiao-yun ZHANG

Aerospace Shanghai（2013）

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Abstract
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.
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Key words
YH-1 Mars probe,Kalman filter,Quartz MEMS gyro,Attitude determination
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