上海航天2012，Vol.29Issue(5)：20-24,40,6.
超低轨卫星气动参数及转动惯量在轨实时辨识
Real-Time Identification of Pneumatic Parameters and Inertia Moment for Ultra-Low Orbit Satellite
党朝辉 1项军华1
作者信息
- 1. 国防科学技术大学航天与材料工程学院,湖南长沙410073
- 折叠
摘要
Abstract
A real-time identification method of pneumatic parameters and inertia moment for the ultra-low orbit satellite was put forward in this paper. The Fourier series model of accommodation coefficient within time of the mirror diffuse reflection model in the environment of rarefied gas was established. The linear observation model of the pneumatic parameters and inertia moment of the satellite in Fourier series model was deduced based on the attitude dynamic and kinematic equation. The real-time determination on orbit using recursive least square method was simulated for a low earth circle orbit satellite using pneumatic active control. The results were consistent with the theoretical analysis. This method could be used in the situation which needed the high precision calculating of aerodynamics and true inertia moment.关键词
超低轨卫星/气动参数/转动惯量/实时辨识Key words
Ultra-low orbit satellite/Pneumatic parameter/Inertia moment/Real-time identification分类
数理科学引用本文复制引用
党朝辉,项军华..超低轨卫星气动参数及转动惯量在轨实时辨识[J].上海航天,2012,29(5):20-24,40,6.
