基于极球面投影的惯导高纬导航方法

发布时间：2018-03-22 03:02

  本文选题：惯导系统　切入点：极球面投影　出处：《华中科技大学学报(自然科学版)》2014年08期 　论文类型：期刊论文

【摘要】：针对现有惯导系统高纬航向、速度误差增大和导航参数不能满足大圆航行需求的问题,研究一种基于极球面投影的惯导高纬导航方法.首先借鉴极球面投影网格导航的思想构建椭球面网格航向基准模型,然后利用惯导系统原有解算信息,以实现网格航向和网格速度解算,最后在分析高纬导航方法误差抑制机理的基础上对高纬导航参数性能进行评估.理论分析和仿真结果表明:该方法可以有效提高惯导系统高纬导航性能,能够满足载体高纬航行需求.
[Abstract]:In view of the problems of high latitude heading of the existing inertial navigation system, the increase of velocity error and the inability of navigation parameters to meet the requirements of large circle navigation, A method of inertial navigation with high latitude based on polar spherical projection is studied. Firstly, the ellipsoidal grid heading reference model is constructed by using the idea of polar spherical projection grid navigation, and then the original calculation information of inertial navigation system is used. In order to realize grid heading and grid velocity solution, Finally, based on the analysis of error suppression mechanism of high latitude navigation method, the performance of high latitude navigation parameters is evaluated. The theoretical analysis and simulation results show that this method can effectively improve the high latitude navigation performance of inertial navigation system. It can meet the needs of carrier navigation in high latitude.
【作者单位】： 海军工程大学导航工程系;飞行器控制一体化技术国防科技重点实验室;
【基金】：国家自然科学基金资助项目(41201478) 航空科学基金资助项目(20120816001)
【分类号】：TN966
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本文编号：1646748