大地测量与地球动力学2017，Vol.37Issue(4)：394-396,424,4.DOI:10.14075/j.jgg.2017.04.014
半重叠总方差法在惯性传感器随机误差分析中的应用
Random Error Analysis of Intertial Sensor Based on Half Overlapping Total Variance
摘要
Abstract
It is imperative to consider analysis accuracy and computational time of every algorithm.When it is used to analyze random error,the computational time of total variance is very long.Aimed at this problem,this essay analyzes the Allan variance and the total overlapping Allan variance approaches.Three sampling modes are put forward.We find the origin of long computational time of total variance,based on which half overlapping total variance is proposed.Finally,the new algorithm is tested with a static experiment of inertial measurement unit including optic-fiber gyro.The result shows that analysis accuracy of half overlapping total variance is the same as with total variance,but computational time of half overlapping total variance is less than total variance.关键词
分析精度/计算时间/采样方式/半重叠总方差法/随机误差Key words
analysis accuracy/computational time/sampling mode/half overlapping total variance/random error分类
天文与地球科学引用本文复制引用
孙越芳..半重叠总方差法在惯性传感器随机误差分析中的应用[J].大地测量与地球动力学,2017,37(4):394-396,424,4.基金项目
Joint Fund of Science and Technology Department of Guizhou Province,No.LH [2015]7179.贵州省科技厅联合基金(黔科合LH字[2015]7179号). （黔科合LH字[2015]7179号）
