| 基于磁强计和MEMS陀螺的弹箭姿态探测系统 |
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| 引用本文： | 杜烨,冯顺山,苑大威,方晶,郑奕.基于磁强计和MEMS陀螺的弹箭姿态探测系统[J].北京理工大学学报,2014,34(12):1267-1271. |
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| 作者姓名： | 杜烨 冯顺山 苑大威 方晶 郑奕 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室,北京100081;中北大学弹箭模拟仿真研究中心,山西,太原030051;北京理工大学爆炸科学与技术国家重点实验室,北京100081;中国兵器工业第二○八研究所,北京 102202;上海空间电源研究所,上海 200245 |
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| 摘 要： | 为解决弹道修正弹箭中捷联式姿态测量系统误差随时间不断积累的问题,设计了一种由二轴磁强计和MEMS陀螺构建的低成本弹体姿态磁-惯性测量系统,利用磁强计测量的地磁信息修正MEMS陀螺解算的姿态角误差. 在此基础上,提出了将两轴地磁信号解算滚转角融入陀螺解算的姿态优化算法,研制的原理样机在二轴转台上进行了测试. 有限的试验表明:在一定条件下,该测量系统可有效抑制陀螺漂移引起的姿态误差,能可靠地用于弹道修正弹箭的姿态测量.
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| 关 键 词： | MEMS陀螺 磁强计 旋转矢量 姿态探测 |
| 收稿时间： | 2013/4/22 0:00:00 |
An Attitude Determination System Using Magnetometers and MEMS Gyro |
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| DU Ye,FENG Shun-shan,YUAN Da-wei,FANG Jing and ZHENG Yi.An Attitude Determination System Using Magnetometers and MEMS Gyro[J].Journal of Beijing Institute of Technology(Natural Science Edition),2014,34(12):1267-1271. |
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| Authors: | DU Ye FENG Shun-shan YUAN Da-wei FANG Jing and ZHENG Yi |
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| Institution: | 1.State Key Laboratory of Explosive Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Research Center of Projectiles and Rockets Simulation, North University of China, Taiyuan, Shanxi 030051, China2.State Key Laboratory of Explosive Science and Technology, Beijing Institute of Technology, Beijing 100081, China3.No.208 Research Institute of China Ordance Industries, Beijing 102202, China4.Shanghai Institute of Space Power Sources, Shanghai 200245, China |
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| Abstract: | To solve a problem that systematic errors accumulated with time in the strapdown attitude determination system for the trajectory correction,a low-cost magnetic-inertial attitude measurement system composed of two-axis magnetometers and MEMS gyroscope was proposed. The geomagnetic information were used to correct attitude error from MEMS gyro and geomagnetic. Geomagnetic signals were devoted to the rotation vector in calculating attitude. A principle prototype was designed and fabricated, and it was tested on two-axis turntable. The determination system can effectively suppress attitude error caused by the gyro drift. This paper proves that the attitude determination system can be reliably used for trajectory correction on some condition. |
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| Keywords: | MEMS gyro magnetometer rotation vector attitude determination |
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