no code implementations • 20 May 2024 • Nathaniel Hamilton, Kyle Dunlap, Kerianne L. Hobbs
Our results show that a limited number of discrete choices leads to optimal performance for the inspection task, while continuous control leads to optimal performance for the docking task.
no code implementations • 10 May 2024 • Kyle Dunlap, Nathaniel Hamilton, Francisco Viramontes, Derrek Landauer, Evan Kain, Kerianne L. Hobbs
As the number of spacecraft on orbit continues to grow, it is challenging for human operators to constantly monitor and plan for all missions.
no code implementations • 10 May 2024 • Kyle Dunlap, Nathaniel Hamilton, Zachary Lippay, Matthew Shubert, Sean Phillips, Kerianne L. Hobbs
On-orbit spacecraft inspection is an important capability for enabling servicing and manufacturing missions and extending the life of spacecraft.
no code implementations • 22 Feb 2024 • Cassie-Kay McQuinn, Kyle Dunlap, Nathaniel Hamilton, Jabari Wilson, Kerianne L. Hobbs
Monte Carlo simulation results as well as plots of example cases are shown and evaluated for a three degree of freedom spacecraft with reaction wheel attitude control.
no code implementations • 6 Feb 2023 • Kyle Dunlap, David van Wijk, Kerianne L. Hobbs
A comparison is made between centralized and decentralized control, where simulations of the inspection problem then demonstrate that RTA can assure safety of all constraints.
no code implementations • 2 Sep 2022 • Umberto Ravaioli, Kyle Dunlap, Kerianne Hobbs
With the rise of increasingly complex autonomous systems powered by black box AI models, there is a growing need for Run Time Assurance (RTA) systems that provide online safety filtering to untrusted primary controller output.
no code implementations • 1 Sep 2022 • Kerianne L. Hobbs, Benjamin K. Heiner, Lillian Busse, Kyle Dunlap, Jonathan Rowanhill, Ashlie B. Hocking, Aditya Zutshi
This research considers the problem of identifying safety constraints and developing Run Time Assurance (RTA) for Deep Reinforcement Learning (RL) Tactical Autopilots that use neural network control systems (NNCS).
no code implementations • 8 Jul 2022 • Nathaniel Hamilton, Kyle Dunlap, Taylor T Johnson, Kerianne L Hobbs
Reinforcement Learning (RL) has become an increasingly important research area as the success of machine learning algorithms and methods grows.
no code implementations • 1 Oct 2021 • Kyle Dunlap, Michael Hibbard, Mark Mote, Kerianne Hobbs
Run Time Assurance (RTA) systems are online safety verification techniques that filter the output of a primary controller to assure safety.