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| 双轴旋转光纤捷联惯导八位置标定方法 | |
| 引用本文： | 孙伟,徐爱功,孙枫.双轴旋转光纤捷联惯导八位置标定方法[J].控制与决策,2012,27(12):1805-1809. |
| 作者姓名： | 孙伟 徐爱功 孙枫 |
| 作者单位： | 1. 辽宁工程技术大学测绘与地理科学学院,辽宁阜新,123000 2. 哈尔滨工程大学自动化学院,哈尔滨,150001 |
| 基金项目： | 中国博士后科学基金面上项目(2012M510830);辽宁省教育厅科学研究一般项目(L2011047);辽宁省科技厅博士启动基金项目(20121084);国家自然科学基金项目(60834005,60775001);测绘遥感信息工程国家重点实验室基金项目(12P01) |
| 摘 要： | 针对双轴旋转捷联惯导系统长期工作时光纤陀螺误差参数随时间变化问题,提出一种姿态未知条件下的八位置标定方法.该方法利用双轴旋转机构可提供惯性测量单元(LMU)相对载体固定角位置特性,结合光纤陀螺简化误差模型,设计出八位置标定路径并激励出光纤陀螺误差参数.新的标定方法既避免了陀螺误差参数的耦合影响,又可以解算出载体航向信息.转台实验结果表明,八位置标定方法可在载体姿态未知条件下完成对光纤陀螺误差参数的标定工作. |
| 关 键 词： | 光纤陀螺 双轴转位 捷联惯导系统 标定 八位置 |
| 收稿时间： | 2011/7/29 0:00:00 |
| 修稿时间： | 2011/10/15 0:00:00 |
Calibration method of eight position for two-axis indexing fiber SINS |
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| SUN Wei,XU Ai-gong,SUN Feng.Calibration method of eight position for two-axis indexing fiber SINS[J].Control and Decision,2012,27(12):1805-1809. | |
| Authors: | SUN Wei XU Ai-gong SUN Feng |
| Affiliation: | 1.School of Geomatics,Liaoning Technical University,Fuxin 123000,China;2.Automation College,Harbin Engineering University,Harbin 150001,China.) |
| Abstract: | According to the error parameters of fiber optic gyro are not stable and vary with time slowly in two-axis indexing rotary strapdown inertial navigation system, a novel calibration method was proposed in this paper. The calibration method can be carried out based on the angle between the IMU and the body could be calculated. Combine with the error model of IFOG. The eight position calibration method was proposed and the parameters of FOG could be calculated. Coupling errors between the scale factor and the misalignment can be avoided by this method. Turntable experiment results show that, the calibration method would achieve the high accuracy with the attitude of vehicle uncertainty. |
| Keywords: | fiber optic gyro| two-axis indexing| strapdown inertial navigation system| calibration| eight position |
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