基于改进等效旋转矢量的姿态更新算法研究  

Strapdown Algorithm Research Based on Improved Equivalent Rotation Vector

作　　者：张昀申[1] 曹彪[2] ZHANG Yunshen CAO Biao(No.92941 Troops of PLA, Huludao 125001 Naval Aeronautical Engineering Institute, Yantai 264001)

机构地区：[1]92941部队 [2]海军航空工程学院

出　　处：《舰船电子工程》2017年第9期30-32,共3页Ship Electronic Engineering

摘　　要：姿态更新算法是捷联惯导系统解算的核心,论文研究了姿态更新的等效旋转矢量算法,该算法在短时间内有很高的定位精度,但随着时间的延长会产生误差积累。通过改进算法可以有效降低误差,提升捷联惯导系统性能。The strapdown algorithm is the key of SINS system solution, this paper researches on the algorithm of equivalent rotation vector, the algorithm has high location precision in the short simulation time , while there is error accumulation in the long simulation time. The error can be reduced and SINS performance can be advanced by the improved algorithm.

关 键 词：捷联惯导 姿态更新 等效旋转矢量 组合导航 

分 类 号：TN967.2[电子电信—信号与信息处理]