Compensation of time-variable magnetic moments for a precise attitude control in nano- and micro-satellite missions |
| |
Authors: | Takaya Inamori Nobutada Sako Shinichi Nakasuka |
| |
Institution: | 1. Intelligent Space Systems Laboratory, 608, Department of Aeronautics and Astronautics, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;2. Nakajima-Sako Laboratory, Department of Electrical and Electronic Engineering, Division of Science and Technology, Graduate School, Shinshu University, 4-17-1, Wakasato, Nagano 380-8553, Japan |
| |
Abstract: | Theses days, many nano- and micro-satellites are applied to several astronomy and remote sensing missions. In order to achieve mission requirements, these satellites must control the attitude precisely. A magnetic disturbance is one of the dominant sources of attitude disturbances. Therefore, this disturbance should be canceled in-orbit or on the ground to achieve the attitude strict requirements. This paper presents the effect of the magnetic disturbance to the attitude in nano- and micro-satellite missions and the sources of the residual magnetic moment of the satellites, which causes the magnetic disturbance. Then, the paper proposes a method to compensate the residual magnetic moment both in-orbit and in the design phase of the satellites. The research also focused on a time-varying residual magnetic moment. Finally, the method is applied to a micro-astrometry satellite as an example. |
| |
Keywords: | Magnetic disturbance decreasing Nano-satellite Attitude control |
本文献已被 ScienceDirect 等数据库收录! |
|