In-orbit control of floating space robots using a model dependant learning based methodology

R Srivastava, R Lima, R Sah… - 2023 IEEE Aerospace …, 2023 - ieeexplore.ieee.org
Use of autonomous space robots show promising potential for precise in-orbit proximity
operations like in-orbit servicing and debris capture. However, manipulators mounted on …

Deep Reinforcement Learning Based Control of Rotation Floating Space Robots for Proximity Operations in PyBullet

R Srivastava, R Lima, R Sah… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
This paper presents a model-free learning-based controller for whole-body control of an
orbiting space robot during proximity operations. Proximity control methods for space robots …

Development of on-ground hardware in loop simulation facility for space robotics

R Sah, R Srivastava, K Das - arXiv preprint arXiv:2306.03785, 2023 - arxiv.org
Over a couple of decades, space junk has increased rapidly, which has caused significant
threats to the LEO operation satellites. An Active Debris Removal $(ADR) $ concept …

Hardware-in-the-loop verification of model predictive control of rotation floating space robot for fine manipulation

R Srivastava, R Sah, S Saha, R Lima… - AIAA SciTech 2024 …, 2024 - arc.aiaa.org
Autonomous robotic systems are expected to play a very significant role in future space
sustainability missions like on-orbit servicing, active debris removal, assembly, etc. Rotation …

Liquid propellant slosh analysis with mass transfer during on-orbit refueling operation

R Sah, R Srivastava, S Saha, K Das - AIAA SciTech 2024 Forum, 2024 - arc.aiaa.org
Over a couple of decades, an On-Orbit Servicing (OOS) application has been continuously
developed to prolong the life span of the satellite whose end of life (EOL) has reached. It can …

Optimal finite thrust rendezvous maneuvers of chaser spacecraft towards capturing target object

R Sah, R Srivastava, S Saha, K Das - AIAA SciTech 2024 Forum, 2024 - arc.aiaa.org
Over a couple of decades, the growth of spacecraft launches has increased drastically at
LEO, and the statistics show that an average of more than a hundred satellites were …

Target Grasp-conditioned Whole-body Control of Satellite Manipulators using Neural Fields with MPC

R Sah, R Srivastava, V Vatsal, R Lima… - 2024 IEEE Aerospace …, 2024 - ieeexplore.ieee.org
This paper presents a method for performing whole-body control of orbiting space robots
that include grasp planning for proximity control operations while accounting for the diversity …

Numerical Modeling of Liquid Propellant Mass Transfer with Sloshing during On-Orbit Refueling

R Sah, R Srivastava, R Lima, V Vatsal… - 2024 IEEE Aerospace …, 2024 - ieeexplore.ieee.org
Over a couple of decades, an On-Orbit Refueling (OOR) application has been continuously
developed to prolong the life span of the satellite whose end of life (EOL) has reached. It can …

Optimal Control Design of Rotation Floating Space Robot During Grasping Operation: An RL Approach

R Sah, K Das - 2024 - digitalcommons.usu.edu
This poster introduces an innovative model-free learning-based controller designed to
comprehensively control an orbiting space robot engaged in proximity and grasping …