A group of cooperative agents can finish complicated missions that are difficult for a large
machine. In the past two decades, spacecraft attitude coordination has attracted significant …

Rigid-body attitude control is motivated by aerospace applications that involve attitude
maneuvers or attitude stabilization. The set of attitudes of a rigid body is the set of 3 X 3 …

We study stability of underwater vehicle dynamics for a six-degree-of-freedom vehicle
modeled as a neutrally buoyant, submerged rigid body in an ideal fluid. We consider the …

A novel guidance algorithm is proposed for the attitude reorientation of a rigid body
spacecraft in the presence of multiple types of attitude-constrained zones. In this direction …

We provide stabilizing feedback control laws for the kinematic system of an underactuated
axisymmetric spacecraft subject to input constraints. The proposed control law forces all …

In this paper we review the main results in the area of active control of spacecraft with one
actuator failure. We emphasize the qualitative characteristics that make this a challenging …

Numerous control methods that use two reaction wheels have been proposed for the
underactuated control problem. However, few studies have applied two single-gimbal …

Discontinuous, time-invariant controllers have been recently proposed in the literature as an
alternative method to stabilize nonholonomic systems. These control laws are not …

Feasibility of achieving 3-axis stabilization of an asymmetric spacecraft for cases where
there is no control available in one axis (underactuated spacecraft) is explored in this paper …

Three-dimensional attitude and shape control problems are studied for a class of spacecraft
with articulated appendages and reaction wheels. A number of special cases of such …