On inertial navigation and attitude initialization in polar areas

作     者：Yuanxin Wu Chao He Gang Liu 

作者机构：Shanghai Key Laboratory of Navigation and Location-based ServicesSchool of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Flight Automatic Control Research InstituteXi’an 710065China 

出 版 物：《Satellite Navigation》 (卫星导航（英文）)

年 卷 期：2020年第1卷第1期

页      面：40-45页

核心收录：

学科分类：08[工学] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 

主　　题：Inertial navigation Mechanization Polar areas Attitude initialization 

摘      要：Inertial navigation and attitude initialization in polar areas become a hot topic in recent years in the navigation community,as the widely-used navigation mechanization of the local level frame encounters the inherent singularity when the latitude approaches 90°.Great endeavors have been devoted to devising novel navigation mechanizations such as the grid or transversal frames.This paper highlights the fact that the common Earth-frame mechanization is sufficiently good to handle the singularity problem in polar areas.Simulation results are reported to demonstrate the singularity problem and the effectiveness of the Earth-frame mechanization.