| 两种坐标系下惯导传递对准效果比较 |
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| 引用本文： | 韩鹏鑫,穆荣军,崔乃刚.两种坐标系下惯导传递对准效果比较[J].中国惯性技术学报,2010,18(3). |
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| 作者姓名： | 韩鹏鑫 穆荣军 崔乃刚 |
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| 作者单位： | 哈尔滨工业大学,航天工程系,哈尔滨,150001 |
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| 基金项目： | 航天技术支撑基金项目 |
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| 摘 要： | 分别建立了发射点惯性坐标系和当地地理坐标系下的惯导误差传播模型,以及典型匹配模式下的传递对准基本方程。基于运载火箭主动段飞行,分析了姿态机动运动对两种坐标系下传递对准的不同影响。数学模型和仿真分析表明,两种坐标系下的传递对准在原理和系统特性上均有较大差异。典型匹配方案的对准效果对比表明,发射点惯性坐标系内的"角速度+加速度"匹配是一种能够实现子惯导快速、准确初始化的有效方法。
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| 关 键 词： | 传递对准 机动 发射点惯性坐标系 当地地理坐标系 |
Comparison between transfer alignments of inertial navigation system in two coordinates |
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| HAN Peng-xin,MU Rong-jun,CUI Nai-gang.Comparison between transfer alignments of inertial navigation system in two coordinates[J].Journal of Chinese Inertial Technology,2010,18(3). |
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| Authors: | HAN Peng-xin MU Rong-jun CUI Nai-gang |
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| Institution: | HAN Peng-xin,MU Rong-jun,CUI Nai-gang (Department of Astronautics,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | The error transfer models of inertial navigation system(INS) in launch-point inertial coordinate and local geographical coordinate are built respectively,and the transfer alignment algorithms (such as velocity + attitude,angular velocity + acceleration) in these two coordinates are derived and applied respectively.Based on the powered flight trajectory of launch vehicle,the effects of attitude maneuvers on the INS transfer alignment in these two coordinates are analyzed through typical flight simulations.Th... |
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| Keywords: | transfer alignment maneuver launch-point inertial coordinate local geographical coordinate |
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