摘要
研究基于PI滤波估计陀螺角速率漂移的陀螺与星敏感器组合定姿算法,首先推导了陀螺角速率漂移与姿态偏差四元数之间的关系,并基于姿态偏差四元数和PI滤波估计陀螺角速率漂移;接着给出了分别基于J2000惯性系和轨道坐标系的星敏感器与陀螺组合定姿算法和姿态偏差四元数求解方法;最后进行了工程应用方式分析和仿真验证。本文基于PI滤波的组合定姿算法简单,易于工程实现,并已通过在轨考核验证。
The methods of the integrated attitude determination with star sensor and gyro based on the gyro drift estimation are researched by using PI filter. Firstly,the relationship between the gyro drift and the quaternion error is induced and the gyro drift is estimated by using PI filter based on the quaternion error.Then,the arithmetic solution of the integrated attitude determination is provided with star sensor and gyro based on the J2000 inertial reference frame and the orbit reference frame respectively. Finally,the engineering application mode is analyzed and the arithmetic is validated by the simulation and the application in orbit. The arithmetic of the integrated attitude determination based on PI filter is applicable for engineering application.
作者
王献忠
张肖
Wang Xianzhong;Zhang Xiao(Shanghai Aerospace Technology Academy,Shanghai 201109,China;Shanghai Aerospace Control Technology Institute,Shanghai 201109,China;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109,China)
出处
《航天控制》
CSCD
北大核心
2018年第4期7-11,共5页
Aerospace Control
关键词
陀螺
星敏感器
组合定姿
PI滤波
漂移估计
Gyro
Star sensor
Integrated attitude determination
PI filter
Drift estimation
