ABSTRACT
Anyhow, satellite micro-vibration must be measured and evaluated thoroughly to implement appropriate designs for the pointing and tracking systems. The micro-vibrations on LANDSAT-4 (Sudey, 1985), OLYMPUS (Manfred, 1990), and ETS-VI (Morio, 2001) satellite in orbit were reported from 1984 to 2001. Moreover, micro-vibration comparisons between in orbit and on ground measurements were conducted on ARTEMIS (Munoz, 1997; Galeazzi, 1996) in 1997, on the SPOT-4 (Privat, 1999) satellite in 1999, and on OICETS (Morio, 2010) in 2010. During the data comparison between in orbit and on ground, it was found that the satellite micro-vibration performance in space is different from on the ground. Morio Toyoshima (Morio, 2010) found that the in-orbit micro-vibration is
1 INTRODUCTION
Because of the large torque amplification capability and good momentum storage performance of a CMG (Control Moment Gyro) attitude control system, it has been widely used on satellites for moving target tracking or imaging capturing, which need rapid attitude manoeuvrability and high attitude precision and stability. (Bhat, 2009).
