Satellite State Estimation

Satellite state estimation using photometric measurements is studied.
The satellite state includes its attitude, shape, and optical parameters.

keywords: kalman filter, light curve inversion
refs.
  • Matsushita, Y., et al., Light Curve Analysis and Attitude Estimation of Space Objects Focusing on Glint, 1st International Orbital Debris Conference, Sugar land, USA, 9–12, December 2019.
  • Arakawa, R., et al., Attitude Estimation of Space Objects Using Imaging Observations and Deep Learning, Advanced Maui Optical and Space Surveillance Technologies Conference, Maui, USA, 17–20, September 2019.

Satellite Attitude Control under Input Constraints

Satellite attitude control under input constraints is studied. This research, for instance,  includes underactuated systems and unidirectional input constraint of thrusters.

keywords: attitude control, underactuated system


refs.
  • Kondo, K., et al., Nonlinear Model Predictive Detumbling of Small Satellites with a Single-axis Magnetorquer, Journal of Guidance, Control, and Dynamics, Vol. ??, No. ??, January 2021, pp. ????–????. (in Press).