Abstract: This paper proposes a control algorithm for underactuated spacecraft with two internal angular momentum exchange devices. In this paper, a geometric constraint of the feasible angular ...

Abstract: In this article, a practical three-dimensional (3-D) guidance is designed to achieve trajectory constrained flight, i.e., arriving at the destination with desired approach angles under ...

If you've ever wished Excel could handle text patterns the way Python or JavaScript does, these functions deliver exactly ...