| 旋转式光纤捷联惯导系统的误差效应分析 |
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| 引用本文： | 祝燕华,蔡体菁.旋转式光纤捷联惯导系统的误差效应分析[J].中国惯性技术学报,2011,19(2). |
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| 作者姓名： | 祝燕华 蔡体菁 |
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| 作者单位： | 东南大学仪器科学与工程学院,南京,210096 |
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| 摘 要： | 旋转式光纤捷联惯导系统的误差效应研究关乎系统的设计和精度的提高.在建立惯性元件误差模型的基础上,分析了系统的旋转调制原理,推导了惯性元件的零偏、安装误差、标度因数误差和随机误差在单轴单方向旋转下产生的误差效应,仿真研究了转速大小对系统精度的影响.结果表明,旋转调制可以有效补偿与转动轴垂直方向惯性元件的零偏,且转速越大效果越好;旋转调制会引入额外的标度因数误差效应,且转速越大误差越大.在设计旋转式捷联惯导系统时,要求惯性元件的标度因数误差和安装误差尽可能小,并且转速不宜过大,采取正反旋转相结合的方式可以取得更显著的误差补偿效果.
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| 关 键 词： | 捷联惯性导航 光纤陀螺 单轴旋转 误差 |
Error analysis of rotating strapdown inertial navigation system based on FOG |
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| ZHU Yan-hua,CAI Ti-jing.Error analysis of rotating strapdown inertial navigation system based on FOG[J].Journal of Chinese Inertial Technology,2011,19(2). |
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| Authors: | ZHU Yan-hua CAI Ti-jing |
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| Institution: | ZHU Yan-hua,CAI Ti-jing (Department of Instrument Science & Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | The study on error effects of rotating strapdown inertial navigation system is very important to the system design.Based on the error model of inertial components,the rotation-modulation principle is analyzed.Then,for the case of single-axial and single-direction rotation,the error effect equations are derived which are produced by bias,fixing error,scale factor error and random drift of inertial components.Besides,the effect of the rotating velocity on the system errors is studied by simulation.The results... |
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| Keywords: | strapdown inertial navigation fiber optical gyro single-axial rotation error |
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