| 基于矢量跟踪的MEMS-SINS/GNSS深组合导航系统 |
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| 引用本文： | 赵志鹏,王新龙.基于矢量跟踪的MEMS-SINS/GNSS深组合导航系统[J].导航与控制,2019,18(6):48-54. |
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| 作者姓名： | 赵志鹏 王新龙 |
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| 作者单位： | 北京航空航天大学宇航学院,北京100191;北京航空航天大学宇航学院,北京100191 |
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| 摘 要： | 针对在载体高动态运动时，由Doppler频移剧烈变化而导致的MEMS-SINS/GNSS组合导航系统精度降低的问题，修正了GNSS卫星信号模型，设计了一种深组合导航通道滤波器，并形成了完整的深组合导航方案。基于矢量跟踪结构的深组合导航方案，通过滤波器对载体的导航参数进行估计，将相互独立的各通道信息结合起来，并利用各卫星位置之间的关系，提高了高动态环境中的跟踪能力。仿真结果表明，基于矢量跟踪结构的深组合导航方案可以有效减少高动态对导航精度的影响，提高组合导航系统的输出精度。
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| 关 键 词： | MEMS?SINS GNSS 矢量跟踪 深组合 |
MEMS-SINS/GNSS Deeply Coupled Navigation System Based on Vector Tracking |
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| ZHAO Zhi-peng and WANG Xin-long.MEMS-SINS/GNSS Deeply Coupled Navigation System Based on Vector Tracking[J].Navigation and Control,2019,18(6):48-54. |
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| Authors: | ZHAO Zhi-peng and WANG Xin-long |
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| Affiliation: | School of Astronautics, Beijing University of Aeronautics and Astronautics, 100191 and School of Astronautics, Beijing University of Aeronautics and Astronautics, 100191 |
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| Abstract: | In response to the high Doppler frequency shift during high dynamic motion of the vehicle, which results in the problem of accuracy reduced of the MEMS-SINS/GNSS integrated navigation system, the GNSS satellite signal model is modified, and a deep integrated navigation channel filter is designed to form a complete deeply coupled navigation scheme. Deeply coupled navigation scheme based on vector tracking structure is used to estimate navigation parameters of a vehicle by a filter, which combines information from independent channels, and utilizes the relationships between satellite positions to improve the tracking ability in a high dynamic environment. The simulation results show that the deeply coupled navigation scheme based on vector tracking structure can effectively reduce the impact of high dynamic on navigation accuracy and improve the output accuracy of the integrated navigation system. |
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| Keywords: | MEMS-SINS GNSS vector-tracking deeply coupled |
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