All Outputs (26)

Trajectory design using the center manifold theory in the circular restricted three-body problem (2016)
Journal Article
Akiyama, Y., Bando, M., Nemati, H., & Hokamoto, S. (2016). Trajectory design using the center manifold theory in the circular restricted three-body problem. Transactions of the Japan Society for Aeronautical and Space Sciences, 14(ists30), Pd_151-Pd_158. https://doi.org/10.2322/tastj.14.pd_151

Lagrangian points are libration points in the circular restricted three-body problem. Three of them are collinear libration points, and known to have unstable periodic and quasi-periodic orbits in the vicinity of themselves. This study aims to desig... Read More about Trajectory design using the center manifold theory in the circular restricted three-body problem.

Design of sliding mode controllers for formation flying along unstable periodic orbits in CR3BP (2015)
Presentation / Conference
Nemati, H., Bando, M., & Hokamoto, S. (2015, October). Design of sliding mode controllers for formation flying along unstable periodic orbits in CR3BP. Paper presented at 66th International Astronautical Congress 2015 (IAC 2015), Jerusalem, Israel

Recently formation flying along halo orbits near a libration point or simply formation flying in the vicinity of a libration point of the circular-restricted three-body problem (CR3BP) has been studied from the point of view of future missions such a... Read More about Design of sliding mode controllers for formation flying along unstable periodic orbits in CR3BP.

Design procedure of chattering attenuation sliding mode attitude control of a satellite system (2014)
Conference Proceeding
Nemati, H., & Hokamoto, S. (2014). Design procedure of chattering attenuation sliding mode attitude control of a satellite system

This study presents a design procedure for a new robust nonlinear control algorithm based on the theory of the terminal sliding mode (TSM) to control the attitude of a satellite system. Since the traditional TSM controllers include a discontinuous fu... Read More about Design procedure of chattering attenuation sliding mode attitude control of a satellite system.

New Continuous Sliding Mode Design for Spacecraft Attitude Control (2014)
Presentation / Conference
Nemati, H., Oishi, M., Kobayashi, N., Nakata, R., & Hokamoto, S. (2014, July). New Continuous Sliding Mode Design for Spacecraft Attitude Control. Paper presented at 24th Workshop on JAXA Astrodynamics and Flight Mechanics 2014, Sagamihara, Kanagawa, Japan

New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft (2014)
Journal Article
Nemati, H., & Hokamoto, S. (2014). New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft. Transactions of the Japan Society for Aeronautical and Space Sciences, 12(ists29), Pd_71-Pd_77. https://doi.org/10.2322/tastj.12.pd_71

An improved sliding mode control (SMC) strategy for the attitude control problem of a nonlinear spacecraft with an elastic appendage is investigated. Since conventional sliding mode controllers include a discontinuous function, a significant problem... Read More about New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft.

Sliding mode control of a microsatellite attitude (2010)
Conference Proceeding
Nemati, H., Bahrami, M., & Ebrahimi, B. (2010). Sliding mode control of a microsatellite attitude. In 2010 3rd International Symposium on Systems and Control in Aeronautics and Astronautics (561-565). https://doi.org/10.1109/ISSCAA.2010.5633071

Attitude control of a micro-satellite is analyzed with sliding control method. With this method, attitude dynamics of satellite is robust against uncertainties and unknown disturbances. Nonlinear and coupled model in this paper is utilized and to pre... Read More about Sliding mode control of a microsatellite attitude.