| 陀螺/星敏感器在轨标定算法研究 |
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| 引用本文： | 陈雪芹,耿云海.陀螺/星敏感器在轨标定算法研究[J].哈尔滨工业大学学报,2006,38(8):1369-1373. |
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| 作者姓名： | 陈雪芹 耿云海 |
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| 作者单位： | 哈尔滨工业大学,卫星技术研究所,哈尔滨,150001 |
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| 摘 要： | 为确保姿态测量器件长期在轨工作精度,提高三轴稳定卫星的姿态确定精度,针对典型的陀螺/星敏感器联合定姿方案,推导了一种对陀螺和星敏感器进行实时在轨标定的算法.充分考虑卫星姿态测量过程中可能出现的各种误差源,建立陀螺和星敏感器的安装误差和标定因子误差模型,并对可能出现的各种误差进行在轨补偿,与同类算法相比,为卫星姿态确定和校正提供了更加丰富的信息,计算量更小.最后对该算法进行了数学仿真,仿真结果验证了该在轨标定算法的有效性和可靠性.
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| 关 键 词： | 陀螺 星敏感器 在轨标定 |
| 文章编号： | 0367-6234(2006)08-1369-05 |
| 收稿时间： | 2004-10-08 |
| 修稿时间： | 2004年10月8日 |
On- orbit calibration algorithm for gyros/star sensor |
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| CHEN Xue-qin,GENG Yun-hai.On- orbit calibration algorithm for gyros/star sensor[J].Journal of Harbin Institute of Technology,2006,38(8):1369-1373. |
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| Authors: | CHEN Xue-qin GENG Yun-hai |
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| Affiliation: | Research Institute of Satellite Technology, Harbin Institute of Technology, Harbin 150001, China, |
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| Abstract: | To ensure the long-term on-orbit working precision of attitude sensors,to meet the high accuracy of three-axis attitude determination of satellite,a real-time on-orbit calibration algorithm for gyros and star sensor is proposed in this paper.Considering the error sources during satellite attitude measure,a model of gyros and star sensor alignment error and scale factor error is constructed for compensating those errors.Comparing with the other calibration algorithms,this algorithm provides more information for satellite attitude determination and correction.Its quantity of computation is small and response time is short.Simulation results indicate the availability and feasibility of the on-orbit calibration algorithm. |
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| Keywords: | gyros star sensor on-orbit calibration |
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