摘要

Purpose - This paper aims to present an attitude determination and control system for a nano-astrometry satellite which requires precise angular rate control. Focus of the research is methods to achieve the requirement.
Design/methodology/approach - In order to obtain astrometry data, the satellite attitude should be controlled to an accuracy of 0.05 degrees. Furthermore, attitude spin rate must be controlled to an accuracy of 4 x 10(-7) during observation. In this paper the following unique ideas to achieve these requirements are introduced: magnetic disturbance compensation and rate estimation using star blurred images.
Findings - This paper presents the feasibility of a high accurate attitude control system in nano- and micro-satellite missions.
Practical implications - This paper presents a possibility of the application of nano-satellites to remote-sensing and astronomy mission, which requires accurate attitude control.
Originality/value - Originalities of the paper are the methods to achieve the high accurate attitude control: magnetic disturbance compensation and angular rate estimation using star images.

  • 出版日期2011