Journals

@inproceedings{shirin_dolatabadi_precision_2026,

title = {Precision Control of a FirefightingDrone with Extinguisher for Flame Targeting},

author = {Shirin Dolatabadi and Hugh H. -T. Liu},

year  = {2026},

date = {2026-01-01},

booktitle = {AIAA SciTech Forum},

address = {Orlando, FL},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{singam_investigating_2026,

title = {Investigating Multi-UAV TerritoryGuarding Using Cooperative-Competitive Reinforcement Learning},

author = {Jitendra Yuvaraja Singam and Longhao Qian and Wenjie Zhuang and Hugh H. -T. Liu},

year  = {2026},

date = {2026-01-01},

booktitle = {AIAA SciTech Forum},

address = {Orlando, FL},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{elahi_nonlinear_2026,

title = {Nonlinear Dynamics Inversion (NDI)Control For Electric VerticalTakeoff and Landing (eVTOL) Vehicles In Transition Flight},

author = {Zaheed Elahi and Hugh H. -T. Liu},

year  = {2026},

date = {2026-01-01},

booktitle = {AIAA SciTech Forum},

address = {Orlando, FL},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zanjanpour_designing_2025,

title = {Designing Trustworthy Autonomous Systems: Integrating Multi-Dimensional Trust Measures for Advanced Air Mobility Systems},

author = {Darya Zanjanpour and Nuzaira Habib and Hugh H-T Liu and Jason E Plaks},

year  = {2025},

date = {2025-05-01},

booktitle = {IEEE International Conference on Human-Machine Systems},

address = {Abu Dahbi},

abstract = {Developing trust in human-robot interaction is vital for improving user performance and system reliability. This study builds on trust quantification research to create a trustworthy simulation environment using the "Auto Safe" tool, which integrates environmental and user-based trust measures. The tool employs the DBSCAN algorithm to evaluate obstacle density and classify safety zones while adapting its behavior based on user profiles. The study examines trust evolution during gameplay and explores ways to modify the simulator for earlier trust calibration, enhancing safety and performance. Initial results, compared to baseline simulations, demonstrate improved user trust, reduced collision rates, and increased reliance on automation. While the sample size is limited, these findings provide promising directions for scalable trust calibration in advanced air mobility systems.},

keywords = {Index Terms-Human-Robot Interaction, Performance, Safety, Trust, Trust Quantification},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{longhao_qian_autonomous_2025,

title = {Autonomous Drone Operator Localization Using UAVs with Reinforcement Learning},

author = {Longhao Qian and Jitendra Yuvaraja Singam and Hugh H. -T. Liu},

year  = {2025},

date = {2025-01-01},

booktitle = {IEEE Smart World Congress},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zhang_data-driven_2025,

title = {Data-Driven Model Predictive Control of Quadrotors Using Deep Koopman Operator},

author = {Kunwu Zhang and Hugh H. -T. Liu},

year  = {2025},

date = {2025-01-01},

booktitle = {IEEE/RSJ International Conference on Intelligent Robots and Systems},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{jamshidpey_multi-uav_2025,

title = {Multi-UAV Uniform Sweep Coverage in Unknown Environments: A Self-organizing Nervous System (SoNS)-Based Random Exploration},

author = {Aryo Jamshidpey and Hugh H. -T. Liu},

year  = {2025},

date = {2025-01-01},

booktitle = {IEEE/RSJ International Conference on Intelligent Robots and Systems},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{elahi_nonlinear_2025,

title = {Nonlinear Dynamics Inversion Based Control Analysis for Tilt-Rotor eVTOL Aircraft: Study of Engine Tilting Profile in Transition Flight},

author = {Zaheed Elahi and Joyal Joshi and Hugh H. -T. Liu},

year  = {2025},

date = {2025-01-01},

booktitle = {AIAA SciTech, (submitted)},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{chen_stabilization_2025,

title = {Stabilization of Slung Payloads Through Natural Frequency Variation Based on Cable Length for Autonomous Unmanned Aerial Vehicles in Water Sampling},

author = {JiTong Chen* and Longhao Qian* and Hugh H. -T. Liu},

year  = {2025},

date = {2025-01-01},

booktitle = {AIAA SciTech, (submitted)},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{qian_energy_2024,

title = {Energy Aware Planning of A Quadrotor with 5G Access Point in Disaster Response},

author = {Longhao Qian and Yi Lok Lo and Hugh H. -T. Liu},

year  = {2024},

date = {2024-11-01},

booktitle = {IEEE 10th World Forum on Internet of Things},

address = {Ottawa},

keywords = {5G, Index Terms-UAV, path planning, quadrotor, travelling-salesman problem},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zanjanpour_quantifying_2024,

title = {Quantifying Trust in Human-Drone Interaction for Advanced Air Mobility Systems},

author = {Darya Zanjanpour* and Sana Kokate* and Hugh H. -T. Liu and Jason E Plaks},

year  = {2024},

date = {2024-05-01},

booktitle = {International Conference on Human-Machine Systems},

publisher = {IEEE},

address = {Toronto},

keywords = {AAM, Human-Robot Interaction, Index Terms-UAV, Performance, Safety, Trust},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{qin_time-optimal_2024,

title = {Time-Optimal Gate-Traversing Planner for Autonomous Drone Racing},

author = {Chao Qin* and Maxime SJ Michet* and Jingxiang Chen* and Hugh H-T Liu},

url = {https://github.com/FSC-Lab/TOGT},

year  = {2024},

date = {2024-05-01},

booktitle = {IEEE International Conference on Robotics and Automation},

publisher = {Best Paper Award on UAVs},

address = {Yokohama, Japan},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{go_trajectory_2024,

title = {Trajectory Optimization for Cooperatively Localizing Quadrotor UAVs},

author = {Helson H S Go* and Hugh H. -T. Liu},

year  = {2024},

date = {2024-05-01},

booktitle = {International Conference on Robotics and Automation},

publisher = {IEEE},

address = {Yokohama, Japan},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{longhao_qian_robust_2023,

title = {Robust Stabilization Of A Quadrotor as A 5G Access Point Using Acceleration Feedback},

author = {Longhao Qian and Hugh H-T Liu},

year  = {2023},

date = {2023-11-01},

booktitle = {IEEE 10th World Forum on Internet of Things},

address = {Ottawa},

keywords = {5G, Index Terms-UAV, Kalman filter, nonlinear control, quadrotor},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{xiong_model-based_2023,

title = {A Model-Based Drift Correction Control for UAV in GNSS-Degraded Environments},

author = {Shangyi Xiong* and Hugh H. -T. Liu},

year  = {2023},

date = {2023-08-01},

booktitle = {IEEE Conference on Control Technology and Applications},

address = {Bridgetown, Barbados},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{feng_collision-free_2023,

title = {Collision-free Path Planning and Control of Coordinated UAVs with Tethered Payloads},

author = {Cindi Feng* and Hugh H. -T. Liu},

year  = {2023},

date = {2023-08-01},

booktitle = {IEEE Conference on Control Technology and Applications},

address = {Bridgetown, Barbados},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{fu_defending_2023,

title = {Defending a Target Area with a Slower Defender},

author = {Han Fu* and Hugh H. -T. Liu},

year  = {2023},

date = {2023-06-01},

booktitle = {American Control Conference},

address = {San Diego, CA},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{wedage_ude-based_2023,

title = {A UDE-Based Controller with Targeted Filtering for the Stabilization of a Fixed-Wing UAV in the Harrier Maneuver},

author = {Pravin Wedage* and Hugh H. -T. Liu},

year  = {2023},

date = {2023-01-01},

booktitle = {American Control Conference (ACC)},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{go_data-driven_2023,

title = {Data-Driven and Robust Path-following Control of a Quadrotor Slung Load Transport System},

author = {Shing Hei Helson Go* and Longhao Qian* and Hugh HT Liu},

year  = {2023},

date = {2023-01-01},

booktitle = {AIAA SciTech},

keywords = {AIAA Associate Fellow, D Candidate, heigo@mailutorontoca † PhD, hughliu@utorontoca, longhaoqian@mailutorontoca ‡ Professor},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{qin_perception-aware_2023,

title = {Perception-Aware Image-Based Visual Servoing of Aggressive Quadrotor UAVs},

author = {Chao Qin* and Qiuyu Yu* and Shing Hei Helson Go* and Hugh H. -T. Liu},

doi = {10.1109/TMECH.2023.3276211},

year  = {2023},

date = {2023-01-01},

booktitle = {IEEE/ASME International Conference on Advanced Intelligent Mechatronics},

publisher = {IEEE},

address = {Seattle},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zepp_autonomous_2022,

title = {Autonomous Strategic Defense: An Adaptive Clustering Approach to Capture Order Optimization},

author = {Noah D. Zepp* and Han Fu* and Hugh H. -T. Liu},

url = {https://arc.aiaa.org/eprint/DV82XSBYNEMIZQDEJU5A/full/10.2514/6.2022-2215},

doi = {10.2514/6.2022-2215},

year  = {2022},

date = {2022-01-01},

booktitle = {AIAA SciTech Forum},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{xiong_low-altitude_2022,

title = {Low-Altitude Flight Control for Crop Dusting},

author = {Shangyi Xiong* and Hugh H. -T. Liu},

year  = {2022},

date = {2022-01-01},

booktitle = {American Control Conference},

pages = {submitted},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{chen_model_2022,

title = {Model of UAV and Downwash for Multi-UAV Path Planning},

author = {Chih-chun Chen* and Hugh H. -T. Liu},

url = {https://arc.aiaa.org/eprint/ZKBTBXKR8KTTFGRQMZJT/full/10.2514/6.2022-0757},

doi = {10.2514/6.2022-0757},

year  = {2022},

date = {2022-01-01},

booktitle = {AIAA SciTech Forum},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{fan_multi-uav_2022,

title = {Multi-UAV Cooperative Hunting Using PSO in 3D Cluttered Environment},

author = {Shichen Fan* and Ge Song* and Chih-Chun Chen* and Peng Shi and Hugh H. -T. Liu},

year  = {2022},

date = {2022-01-01},

booktitle = {International Conference of Guidance, Navigation and Control},

pages = {1–10},

keywords = {collision avoidance, cooperative hunting, pso path planning},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{qin_pcvpc_2022,

title = {PCVPC : Perception Constrained Visual Predictive Control For Agile Quadrotors},

author = {Chao Qin* and Hugh H. -T. Liu},

year  = {2022},

date = {2022-01-01},

booktitle = {International Conference of Robotics & Automation (ICRA)},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}