| 基于捷联惯导系统的杆臂效应误差分析 |
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| 引用本文： | 李鹏飞,奔粤阳,张亚,孙骞.基于捷联惯导系统的杆臂效应误差分析[J].传感器与微系统,2012,31(3):53-55. |
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| 作者姓名： | 李鹏飞 奔粤阳 张亚 孙骞 |
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| 作者单位： | 1. 海军装备部舰艇部,北京,100841
2. 哈尔滨工程大学自动化学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 随着捷联惯导系统的发展,对惯性导航精度和快速性的要求越来越高。而快速性主要取决于初始对准时间。传统的初始对准方法具有一定的局限性,而传递对准是一种新型的、快速的初始对准方法。主要分析了传递对准方法中的速度匹配方法,在此基础上推导了杆臂效应的基本原理。最后通过仿真得到,存在杆臂效应时,航向失准角估计误差稳态值为-0.5°;通过实船实验得到,存在杆臂效应时,俯仰、横滚和航向角的失准角估计误差分别为-0.22°,-0.37°,-0.35°,从而验证了杆臂效应误差对失准角的影响。
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| 关 键 词： | 传递对准 匹配方法 速度匹配 杆臂效应 |
Error analysis on lever-arm effect based on strapdown inertial navigation system |
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| LI Peng-fei
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BEN Yue-yang
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ZHANG Ya
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SUN Qian.Error analysis on lever-arm effect based on strapdown inertial navigation system[J].Transducer and Microsystem Technology,2012,31(3):53-55. |
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| Authors: | LI Peng-fei BEN Yue-yang ZHANG Ya SUN Qian |
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| Affiliation: | 1.Warship Bureau,Navy Equipment Department,Beijing 100841,China; 2.School of Automation,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | With the development of strapdown inertial navigation system,the demand for the precision and speediness of inertial navigation is becoming higher and higher.The speediness depends on the initial alignment time.Compared with the restricted traditional initial alignment,transferring alignment is a new kind of quick initial alignment method.The velocity matching transfer alignment method is analyzed.The principle of the lever-arm effect is derived on this basis.The simulation result shows that the stable yaw misalignment angle is-0.5°.The experiment shows that pitch misalignment angle is-0.22°;roll misalignment angle is-0.37°;yaw misalignment angle is-0.35°.So the influence of the lever-arm effect error on misalignment angle is verified. |
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| Keywords: | transferring alignment matching method velocity matching lever-arm effect |
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