Koopman-operator-based safe learning control for spacecraft attitude reorientation with angular velocity constraints

J Yao, Q Hu, J Zheng - IEEE Transactions on Aerospace and …, 2023 - ieeexplore.ieee.org
This article presents the design of a safe learning attitude controller, based on the Koopman
operator (KO), for rest-to-rest spacecraft attitude reorientation under angular velocity …

Design and Experimental Study on the Torque Balancing Mechanism of a Satellite-Borne Two-Axis Rotary Table

Y Wang, X Sui, T Zhang, T Nie, C Chen - Machines, 2023 - mdpi.com
With the rapid development of science and technology, high-resolution remote sensing
cameras are now widely used in various fields. At the beginning of camera attitude …

Impact Angle Guidance Using Computationally Enhanced State-Dependent Differential Riccati-Equation Scheme

LG Lin, RS Wu, CT Yeh, M Xin - Journal of Spacecraft and Rockets, 2023 - arc.aiaa.org
This study considers the latest three-dimensional impact angle guidance based on the state-
dependent differential Riccati-equation (SDDRE) scheme, and it presents novel theories that …