摘要
针对优化对准过程中姿态更新环节的引入误差,提出了逆向优化对准改进算法。基于逆向导航原理对初始对准结束时刻载体姿态进行直接解析,避免了传统算法中姿态更新环节引入的误差,有效减少了惯性器件误差对初始对准结果的影响。仿真和试验结果表明:该改进算法可有效提高惯性导航系统优化对准的精度。
Considering the attitude updating errors of conventional algorithm,the reversed optimization-based alignment algorithm is proposed to improve the alignment accuracy.Based on the idea of reverse navigation,a direct analysis of the attitude matrix is carried out.The attitude updating error in conventional algorithm is eliminated,and the effect of the device error is effectively reduced.Simulation and experimental results show that the proposed algorithm can effectively improve the alignment accuracy of the inertial navigation system.
作者
郭士荦
许江宁
何泓洋
GUO Shi-luo;XU Jiang-ning;HE Hong-yang(College of Electrical Engineering,Naval Univ.of Engineering,Wuhan 430033,China)
出处
《海军工程大学学报》
CAS
北大核心
2018年第4期54-58,共5页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(41574069)
关键词
惯性导航系统
优化对准
逆向解析
inertial navigation system
optimization-based alignment
reversed analysis
