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| 捷联惯导系统圆锥误差分析 | |
| 引用本文： | 徐景硕,耿昌茂,秦永元.捷联惯导系统圆锥误差分析[J].海军航空工程学院学报,2004,19(5):517-520. |
| 作者姓名： | 徐景硕 耿昌茂 秦永元 |
| 作者单位： | 1. 西北工业大学自动化学院,西安,710072;海军航空工程学院青岛分院,青岛,266041 2. 海军航空工程学院青岛分院,青岛,266041 3. 西北工业大学自动化学院,西安,710072 |
| 摘 要： | 捷联惯导系统由于数学平台隔离作用的不完善,当运载体沿机体坐标轴存在同频率的角振动和线振动时,角振动引起的整流效应将在姿态更新计算中产生圆锥误差,角振动和线振动引起的整流效应将在速度计算中产生划桨误差,在位置计算中产生涡卷误差。文中详细分析了圆锥误差产生机理,针对某型飞机装备 SIGMA50 GPS/SINS 组合导航系统对底座安装的精度要求,分析了安装误差、陀螺频带不够宽、姿态更新率过低对姿态精度的影响,并对维护捷联惯导系统提出建议。 |
| 关 键 词： | 捷联惯导系统 数学平台 圆锥误差 姿态更新 |
| 修稿时间： | 2003年11月20 |
Coning Error Analysis of Strapdown Inertial Navigation System |
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| XU Jing-shuo,GENG Chang-mao,QIN Yong-yuan.Coning Error Analysis of Strapdown Inertial Navigation System[J].Journal of Naval Aeronautical Engineering Institute,2004,19(5):517-520. | |
| Authors: | XU Jing-shuo GENG Chang-mao QIN Yong-yuan |
| Institution: | XU Jing-shuo College of Automatic Control,Northwestern Polytechnic University,Xi'an,710072 Qingdao Branch of NAEI,Qingdao,266041GENG Chang-mao Qingdao Branch of NAEI,Qingdao,266041QIN Yong-yuan College of Automatic Control,Northwestern Polytechnic University,Xi'an,710072, |
| Abstract: | The inertial sensors of the.strapdown inertial navigation system(SINS)are directly mounted to the vehicle,and the vehicle's angular and linear vibrations will result in the coning error,the sculling error and the scrolling error.In this paper,how the coning error occurs for SINS in highly dynamic environments is analyzed. Based on the install accuracy required of pedestal of SIGMA50 GPS/SINS integrated navigation system,the factors of install errors,the waveband of gyro not too wide,and the attitude updating too slow are discussed,and they affect to the attitude accuracy are analyzed,and the suggestions of maintain SINS are proposed in the end. |
| Keywords: | SINS mathmatics platform coning error attitude update |
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