| 基于星敏感器双矢量观测信息的卫星姿态确定算法研究 |
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| 引用本文： | 王志刚,邓逸凡.基于星敏感器双矢量观测信息的卫星姿态确定算法研究[J].科学技术与工程,2011,11(33):8252-8255. |
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| 作者姓名： | 王志刚 邓逸凡 |
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| 作者单位： | 西北工业大学,西安,710072 |
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| 摘 要： | 针对三轴稳定卫星,研究基于星敏感器双矢量观测信息的卫星高精度姿态确定算法。建立了姿态运动学模型、敏感器测量模型、QUEST算法模型和扩展卡尔曼滤波(EKF)模型。对比分析了QUEST算法以及星敏感器与陀螺组合的扩展卡尔曼滤波(EKF)算法的定姿精度。通过数学仿真,表明基于星敏感器和陀螺的扩展卡尔曼滤波组合姿态确定算法具有更高的定姿精度。
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| 关 键 词： | 星敏感器 姿态确定 QUEST 扩展卡尔曼滤波 |
| 收稿时间： | 8/30/2011 4:46:17 PM |
| 修稿时间： | 9/6/2011 5:22:53 PM |
Study of Satellite Attitude Determination Algorithm Based on Two-vector observation of Star Sensor |
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| wangzhigang and.Study of Satellite Attitude Determination Algorithm Based on Two-vector observation of Star Sensor[J].Science Technology and Engineering,2011,11(33):8252-8255. |
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| Authors: | wangzhigang and |
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| Institution: | (Northwestern Polytechnical University,Xi’an 710072,P.R.China) |
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| Abstract: | This paper presented and probed into algorithms from two vector observation based on star sensor, including QUEST algorithm and algorithms using Extended Kalman Filter(EKF) with gyros measurements, were derived respectively. And validated higher accuracy of filtering algorithm using star sensor and gyros comparing with the QUEST algorithms through simulation test. |
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| Keywords: | star sensor attitude determination QUEST extended kalman filter(EKF) |
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