Over the past few years, the applications of dual-quaternions have not only developed in
many different directions but has also evolved in exciting ways in several areas. As dual …

This paper introduces a guidance strategy for spacecraft proximity operations, which
leverages deep reinforcement learning, a branch of artificial intelligence. This technique …

This paper presents a six-degree-of-freedom relative motion control method for autonomous
spacecraft rendezvous and proximity operations subject to input saturation, full-state …

In this article, a novel pose (ie, concurrent position-attitude) tracking control framework is
proposed for spacecraft proximity operations with a freely tumbling target, employing the …

The capture of a free-floating tumbling object using an autonomous vehicle is a key
technology for many future orbital missions. Spacecraft proximity operations will play an …

The problem of powered descent guidance and control for autonomous precision landing for
next-generation planetary missions is addressed. The precision landing algorithm aims to …

This paper presents a numerical algorithm for computing six-degree-of-freedom free-final-
time powered descent guidance trajectories. The trajectory generation problem is formulated …

This paper addresses the integrated attitude and position control problem for the final phase
proximity operations of spacecraft autonomous rendezvous and docking, in which important …

Based on the highly successful quaternion multiplicative extended Kalman filter for
spacecraft attitude estimation using unit quaternions, this paper proposes a dual quaternion …

This paper proposes an adaptive sliding mode control law based on dual quaternions for six-
degree-of-freedom proximity operations between a chaser and a target spacecraft. Dual …