飞控与探测2026，Vol.9Issue(2)：48-58,11.DOI:10.20249/j.cnki.2096-5974.2026.02.006
基于相对位置环境函数的制导工具误差系数分离方法
Method for Separating the Error Coefficients of Guidance Tools Based on Relative Positional Environment Function
摘要
Abstract
For the problem of not being able to calculate the error coefficient directly by using the remote outlier equation due to the lack of high-precision external measurement equipment when performing the continuous test of ground closed orbit and the seriousness of the complex covariance of the environment function matrix when separating,a method of error coefficient sepa-ration of the guidance tool based on the environment function of the relative position is proposed,in which the characteristic points in the trajectory can be extracted for the separation of error coef-ficients.First,the navigation solution is based on the differential equations in the earth coordinate system of the launch point.Second,the characteristic points in the navigation solution trajectory are extracted to establish the relative position domain environment function.Finally,the error co-efficients are then estimated by combining the correlation and significance methods,and the error coefficients obtained from the separation are substituted into the accelerometer output for compen-sation,and the position error is reduced from 27 m to about 1.7 m,which is a good compensation effect.The method proposed in this paper can effectively separate the error coefficients of inertial guidance tools and has a certain application value.关键词
惯性导航/误差分离/环境函数/特征点/复共线性Key words
inertial navigation/error separation/environment function/characteristic point/com-plex covariance分类
航空航天引用本文复制引用
钟慧敏,魏宗康,李保国,魏林涛..基于相对位置环境函数的制导工具误差系数分离方法[J].飞控与探测,2026,9(2):48-58,11.基金项目
国家自然科学基金(62388101) （62388101）
