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About

Kejie Gong is a leading researcher in space robotics, specializing in the kinematics, dynamics, and control of free-floating space-robot systems. His work addresses fundamental challenges posed by the nonholonomic nature of these systems, where the base is not fixed, making position-level problems particularly complex. Gong’s major contributions include developing novel methods based on screw theory and Lie group SE(3) to model and control space robots more efficiently. His 2019 paper on kinematic research using screw theory, with 9 citations, provides a systematic approach to solving position-level problems that were previously intractable. He has also advanced workspace calculation for dual-arm space robots and trajectory planning that optimizes berth positions, both critical for real-world orbital servicing missions. Notably, his 2023 work on dynamic modelling and continuous trajectory tracking control on SE(3) introduces a unified framework for tracking time-varying manifolds, overcoming limitations of traditional separate position-attitude control. Gong’s research is foundational for future autonomous space operations, including satellite repair and debris removal.