14 citations · 26 across the 8 of their papers we have counts for
7 papers · 1 filter
The Adaptive Dynamic Programming Toolbox
Xiaowei Xing, Dong Eui Chang
The paper develops the Adaptive Dynamic Programming Toolbox (ADPT), which solves optimal control problems for continuous-time nonlinear systems. Based on the adaptive dynamic progr…
Tracking Controller Design for Satellite Attitude Under Unknown Constant Disturbance Using Stable Embedding
Wonshick Ko, Karmvir Singh Phogat, Nicolas Petit +1
We propose a tracking control law for the fully actuated rigid body system in the presence of any unknown constant disturbance by employing quaternions with the stable embedding te…
Invariant extended Kalman filter on matrix Lie groups
Karmvir Singh Phogat, Dong Eui Chang
We derive symmetry preserving invariant extended Kalman filters (IEKF) on matrix Lie groups. These Kalman filters have an advantage over conventional extended Kalman filters as the…
Model Predictive Tracking Control for Invariant Systems on Matrix Lie Groups via Stable Embedding into Euclidean Spaces
Dong Eui Chang, Karmvir Singh Phogat, Jongeun Choi
For controller design for systems on manifolds embedded in Euclidean space, it is convenient to utilize a theory that requires a single global coordinate system on the ambient Eucl…
Design of Globally Exponentially Convergent Continuous Observers for Velocity Bias and State for Systems on Real Matrix Groups
Dong Eui Chang
We propose globally exponentially convergent continuous observers for invariant kinematic systems on finite-dimensional matrix Lie groups. Such an observer estimates, from measurem…
Attitude Observer on SO(3) with Time-Varying Reference Directions
Kanishke Gamagedara, Taeyoung Lee, Dong Eui Chang
This paper introduces an advanced Lyapunov stability analysis for an attitude observer that has been developed on the special orthogonal group. In particular, when the attitude obs…