8 papers · 1 filter
Safe Output-Feedback Adaptive Optimal Control of Affine Nonlinear Systems
Tochukwu E. Ogri, Muzaffar Qureshi, Zachary I. Bell +2
In this paper, we develop a safe control synthesis method that integrates state estimation and parameter estimation within an adaptive optimal control (AOC) and control barrier fun…
Improved Dwell-times for Switched Nonlinear Systems using Memory Regression Extension
Muzaffar Qureshi, Tochukwu Elijah Ogri, Humberto Ramos +3
This paper presents a switched systems approach for extending the dwell-time of an autonomous agent during GPS-denied operation by leveraging memory regressor extension (MRE) techn…
A Taylor Series Approach to Correction of Input Errors in Gaussian Process Regression
Muzaffar Qureshi, Tochukwu Elijah Ogri, Zachary I. Bell +2
Gaussian Processes (GPs) are widely recognized as powerful non-parametric models for regression and classification. Traditional GP frameworks predominantly operate under the assump…
A Switched Systems Approach to Image-Based Feature Tracking for Autonomous Satellite Inspection
Tochukwu Elijah Ogri, Muzaffar Qureshi, Zachary I. Bell +3
This paper presents an information-based guidance and control architecture for an autonomous deputy spacecraft tasked with inspecting a chief satellite in orbit. The primary object…
Gaussian Process-Based Scalar Field Estimation in GPS-Denied Environments
Muzaffar Qureshi, Tochukwu Elijah Ogri, Humberto Ramos +2
This paper presents a methodology for an autonomous agent to map an unknown scalar field in GPS-denied regions. To reduce localization errors, the agent alternates between GPS-enab…
Scalar Field Mapping with Adaptive High-Intensity Region Avoidance
Muzaffar Qureshi, Tochukwu Elijah Ogri, Zachary I. Bell +1
This research is motivated by a scenario where a group of UAVs is assigned to map an unknown scalar field, with the imperative of maintaining a safe distance from the sources of th…