深空探测学报（中英文）2026，Vol.13Issue(1)：58-68,11.DOI:10.3724/j.issn.2096-9287.2025.20250057
陆标导航系统测量基准偏差参数估计方法
Measurement Reference Bias Parameter Estimation Method for Landmark Navigation Systems
摘要
Abstract
The measurement reference bias caused by the relative installation error between landmark sensor and star sensor is one of the primary factors degrading navigation performance.In the space environment,positioning error of the landmark navigation system is increased due to slow time-varying measurement reference bias caused by deformation of sensors and their brackets.To cope with this problem,a parametric model for in-orbit calibration of time-varying measurement reference bias was proposed.Based on the model,a parameter estimation method for measurement reference bias was designed.Using this method,celestial landmarks and stars on the celestial sphere were observed with a landmark sensor and a star sensor respectively to obtain the line-of-sight(LOS)measurements of the landmarks in the inertial reference frame.Then the measurements were processed with a navigation filter to estimate the position and velocity of the spacecraft together with the measurement reference bias parameters in real time.Numerical simulations demonstrate that the proposed method effectively mitigates the unfavorable effect of measurement reference bias,significantly improving the positioning accuracy of the navigation system.关键词
航天器/陆标导航/测量基准偏差/参数估计Key words
spacecraft/landmark navigation/measurement reference bias/parameter estimation分类
航空航天引用本文复制引用
熊凯,郭敏文,黄翔宇..陆标导航系统测量基准偏差参数估计方法[J].深空探测学报（中英文）,2026,13(1):58-68,11.基金项目
国家自然科学基金(62394354,62394350) （62394354,62394350）
