| 多星敏感器地面热漂移标定位置误差检测研究 |
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| 引用本文： | 潘森,高婧婧,许孝芳,毕勇,李金鹏.多星敏感器地面热漂移标定位置误差检测研究[J].激光技术,2020,44(6):664-667. |
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| 作者姓名： | 潘森 高婧婧 许孝芳 毕勇 李金鹏 |
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| 作者单位： | 1.江苏大学 机械工程学院，镇江 212013 |
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| 摘 要： | 为了减少多个星敏感器地面热漂移标定时受到不同安装平台的位置误差影响, 采取一种多星敏感器地面热漂移标定位置误差检测方法，进行了理论分析和实验验证，取得了-25℃~60℃真空状态下系统中基准方棱镜变形的位置偏移量数据，并进行了标定位置误差精度分析。结果表明，多星敏感器位置绕各轴产生的最大偏移量分别为-39.341″/℃, -0.060″/℃, -24.137″/℃，通过建立误差检测模型对位置误差进行计算，将其从姿态测量结果的偏移量中剔除后获得更准确的星敏感器姿态测量四元数，剔除位置误差后的系统精度至少提高了11%。该研究在提高星敏感器热漂移标定精度方面具有很好的应用前景。
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| 关 键 词： | 测量与计量 标定位置误差 四元数姿态解算 星敏感器 热漂移 |
| 收稿时间： | 2019-12-18 |
Method research of multiple star sensors ground thermal drift calibration position error detection |
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| Abstract: | In order to reduce the affect of the deformation offset of different installation platforms on the ground thermal drift calibration of multiple star sensors, a multiple star sensor ground thermal drift calibration position error detection method was proposed. Theoretical analysis and experimental verification were carried out. The position deviation data of the reference square prism deformation in the system under the vacuum of -25℃~60℃ was obtained. And the accuracy analysis of calibration position error was carried out.The results show that, the maximum offsets of the multi-star sensor positions around each axis are -39.341″/℃, -0.060″/℃, and -24.137″/℃, repectively. By establishing the error detection model which was established according to the method of measuring position error, the position error was removed from the offset of the attitude measurement result to obtain a more accurate star sensor attitude measurement quaternion. And the system accuracy after removing the position error was improved by at least 11%, which means it has a good application prospect in improving the accuracy of star sensor thermal drift calibration. |
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