Young-Cheol Choi

TL;DR: In this paper, a nonlinear control scheme along with its simulation and experimental results for a quadrotor is presented, where a backstepping-like feedback linearization method is used to control and stabilize the quadrotors.

TL;DR: A survey on coordination problems in cooperative multiagent reinforcement learning is provided, and a new approach to solve coordination problems is proposed.

TL;DR: Fuzzy logic and Q-learning are combined for FDI for small control momentum gyroscope (CMG)-based satellites, and fuzzy logic, which is based on residual analysis, will be used to find faults in CMGs.

TL;DR: In this paper, a multi-rotor type unmanned aerial vehicle (UAV) consisting of a main body including the battery module and the control module, a plurality of frames connected to a side surface of the main body and extending therefrom, a first motor connected to distal end of each of the frames; and a drive unit connected to the first motor, wherein the drive unit includes a rotary frame and a stationary frame each having a circular shape and connected to each other in the form of a gyroscope, a second motor supported at the center of the rotatable

TL;DR: In this paper, a group of four quad-rotors in 3D is controlled by the formation control law, and the desired formation of the group is globally asymptotically stable with all squared inter-agent errors exponentially converging to zero.