| 旋转调制式激光捷联惯导安装误差分析与标定 |
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| 引用本文： | 杨国梁,王玮,徐烨烽,冯培德.旋转调制式激光捷联惯导安装误差分析与标定[J].仪器仪表学报,2011,32(2). |
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| 作者姓名： | 杨国梁 王玮 徐烨烽 冯培德 |
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| 作者单位： | 北京航空航天大学,北京,100191 |
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| 基金项目： | 航空科学基金，中航工业技术创新基金 |
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| 摘 要： | 双轴旋转调制技术可以实现对陀螺漂移和加计零偏的调制,从而极大地提高惯导系统的精度,以满足船用惯导高精度的导航需求.由于单元体一直作连续正反旋转运动,传统的位置法和速率法无法对该系统进行标定.提出了一种基于三轴转台和单元体自旋转的误差标定方案,实现了对系统误差的快速精确标定.其中旋转轴和陀螺及加计敏感轴间的不正交角标定精度优于1",陀螺、加计敏感轴间的不正交角标定精度优于2".海上试验表明,误差标定结果满足了系统1 nmile/24 h的导航要求,具有较高的工程应用价值.
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| 关 键 词： | 旋转调制 误差标定 误差补偿 |
Research on installation error analysis and calibration for LSINS based on rotation modulation |
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| Yang Guoliang,Wang Wei,Xu Yefeng,Feng Peide.Research on installation error analysis and calibration for LSINS based on rotation modulation[J].Chinese Journal of Scientific Instrument,2011,32(2). |
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| Authors: | Yang Guoliang Wang Wei Xu Yefeng Feng Peide |
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| Affiliation: | Yang Guoliang,Wang Wei,Xu Yefeng,Feng Peide(Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | Gyro drift and accelerometer bias can be eliminated using biaxial rotation modulation,which can greatly improve the precision of inertial navigation system and meet the requirement of high precision marine navigation.Traditional method is inapplicable due to the continuous rotation of the unit in forward and backward directions.To solve the problem,a novel error calibration scheme is proposed based on three-axis turntable and unit rotation,which realizes the calibration of the prototype system using RLGs(ri... |
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| Keywords: | rotation modulation calibration error compensation |
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