分光再利用型激光多普勒测速仪及其与捷联惯导组合导航

发布时间：2018-02-27 23:46

  本文关键词： 激光多普勒测速仪 捷联惯导 分光再利用 航迹推算　出处：《中国惯性技术学报》2014年04期 　论文类型：期刊论文

【摘要】：为了抑制惯性导航系统的误差累积效应,提出了用激光多普勒测速仪与捷联惯导进行组合。基于分光再利用的思想设计了新型光路结构的激光多普勒测速仪,并详细讨论了激光测速仪与捷联惯导组合进行航迹推算的过程。理论分析和实验结果表明,分光再利用型激光多普勒测速仪测量精度高、数据有效性及稳定性好,将其用于车载惯性导航系统大大提高了导航精度,位置误差由纯捷联惯导2 h1166 m提高到组合系统2 h 20 m。
[Abstract]:In order to suppress the error accumulation effect of inertial navigation system, the laser Doppler velocimeter and strapdown inertial navigation system are combined. A new type of laser Doppler velocimeter with optical path structure is designed based on the idea of reusing the light splitter. The process of track calculation combined with laser velocimeter and strapdown inertial navigation is discussed in detail. The theoretical analysis and experimental results show that the laser Doppler velocimeter with split-light reutilization has high measurement accuracy, good data validity and stability. The accuracy of navigation is greatly improved when it is used in vehicle inertial navigation system, and the position error is increased from 2h1166m to 2h20m for pure strapdown inertial navigation system.
【作者单位】： 国防科学技术大学光电科学与工程学院;
【基金】：国防自然科学基金项目(61308060)
【分类号】：TN249;TN966
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本文编号：1544844