7 papers
Genetic Fuzzy System-based Control for Final Approach of Spacecraft Rendezvous and Proximity Operations
Daegyun Choi, Donghoon Kim, Henzeh Leeghim
In-space servicing has been receiving great attention to extend the operation of spacecraft with defective components. This requires rendezvous and proximity operations for a chase…
Genetic Fuzzy System-Based Multi-Robot Coordination for Planetary Missions
Daegyun Choi, Donghoon Kim
This paper proposes a decentralized approach for a multi-robot system (MRS) using a genetic fuzzy system to perform a collaborative object transportation task that minimizes the to…
SPURS: Massive Stars, Dense Gas, and Ly Escape in GN-z11 at
Zuyi Chen, Daniel P. Stark, Charlotte A. Mason +6
We present ultra-deep {\it JWST} spectroscopy of GN-z11 () obtained through the SPURS Cycle 4 Large Program, providing the deepest rest-UV view yet obtained of a galaxy at…
Fuzzy-Based Control Method for Autonomous Spacecraft Inspection with Minimal Fuel Consumption
Daegyun Choi, Donghoon Kim, Henzeh Leeghim
This study explores an energy-efficient control strategy for spacecraft inspection using a fuzzy inference system combined with a bio-inspired optimization technique to incorporate…
Understanding and Utilizing Dynamic Coupling in Free-Floating Space Manipulators for On-Orbit Servicing
Gargi Das, Daegyun Choi, Donghoon Kim
This study proposes a dynamic coupling-informed trajectory optimization algorithm for free-floating space manipulator systems (SMSs). Dynamic coupling between the base and the mani…
Adapting Biological Reflexes for Dynamic Reorientation in Space Manipulator Systems
Daegyun Choi, Alhim Vera, Donghoon Kim
Robotic arms mounted on spacecraft, known as space manipulator systems (SMSs), are critical for enabling on-orbit assembly, satellite servicing, and debris removal. However, contro…