现代电子技术2012，Vol.35Issue(4)：13-17,5.
基于星敏感器和陀螺的卫星定姿新方法
New method of satellite attitude determination algorithm in the period of stabilizing control based on star-sensor and gyro
艾奇 1葛升民1
作者信息
- 1. 哈尔滨工业大学控制科学与工程系,黑龙江哈尔滨 150001
- 折叠
摘要
Abstract
Aiming at the problem of unable to choose suitable filtering mode for errors accumulated and noise distribution changed, the body coordinate system, a augmented measure composed of measurements of star-sensor and gyro in the inertial coordinate is proposed and the attitude determination is modeled to a nonlinear filter problem. Because the nonlinear filters used commonly may have a good performance both in accuracy and real time, UKF is introduced to estimate the attitude parameters and the gyro drift Further, the situation of unknown or time-varied sensor accuracy is considered, and the IMMUKF algorithm is proposed. The simulation results show the efficiency and accuracy of the method. It has a high practical value.关键词
姿态确定/星敏感器/陀螺仪/无迹滤波/交互式多模型Key words
attitude determinations star-sensor/gyro/unscented Kalman filter/ interacting multiple model分类
信息技术与安全科学引用本文复制引用
艾奇,葛升民..基于星敏感器和陀螺的卫星定姿新方法[J].现代电子技术,2012,35(4):13-17,5.
