基于极球面投影的惯导高纬导航方法  

High latitude navigation method for inertial navigation system based on polar stereographic projection

作　　者：刘文超[1] 卞鸿巍[1] 王荣颖[1] 岳亚洲 

机构地区：[1]海军工程大学导航工程系,湖北武汉430033 [2]飞行器控制一体化技术国防科技重点实验室,陕西西安710065

出　　处：《华中科技大学学报（自然科学版）》2014年第8期27-32,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

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)

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.A inertial navigation method based on polar stereographic projection was researched to sovle problems that existing inertial navigation methods can not meet the demand for great circle sailing and navigation errors increase in high latitude regions .Ellipsoid grid heading reference model was con-structed ,drawing from the thought of the polar stereographic projection grid navigation .Then ,by u-sing original calculating information of inertial navigation systems (INS) ,grid heading and grid veloci-ty calculation were achieved .Finally ,high latitude navigation parameters performanced evaluation on the basis of the analysis of high-latitude navigation methods inhibition mechanism .Theoretical analy-sis and simulation results show that this method can effectively improve the navigation performance of INS and meet the demand of carrier sailing in high latitude regions .

关 键 词：惯导系统 极球面投影 高纬导航 网格航向基准 误差方程 

分 类 号：TN966[电子电信—信号与信息处理]