Abstract Unmanned Aircraft Systems (UAS) have seen unprecedented levels of growth
during the last two decades. Although many challenges still exist, one of the main UAS focus …

This paper presents a solution to the problem of trajectory tracking control for autonomous
surface craft (ASC) in the presence of ocean currents. The proposed solution is rooted in …

This paper presents a novel fixed time sliding mode disturbance observer (FTSMDO) based
second-order fixed time sliding mode control (FTSMC) for small scale unmanned helicopter …

This brief addresses the problem of trajectory tracking control of autonomous rotorcraft in
operation scenarios where only relative position measurements obtained from light …

Quadrotor unmanned aerial vehicles (UAVs) have attracted considerable interest for various
applications including search and rescue, environmental monitoring, and surveillance …

With rapid advances in the unmanned aerial vehicle (UAV) field and their growing popularity
in a wide range of civilian and commercial applications, UAV operation in urban areas is …

This paper presents a robust control technique for small-scale unmanned helicopters to
track predefined trajectories (velocities and heading) in the presence of bounded external …

In this paper, the L 1 adaptive control theory is used to design a high bandwidth inner loop
controller to provide attitude and velocity stabilization of an autonomous small-scale …

This paper presents a solution to the problem of trajectory-tracking control for autonomous
surface craft (ASC) in the presence of ocean currents. The proposed solution is rooted in …

This paper describes a nonlinear Image-Based Visual Servo (IBVS) controller for tracking
nonlinear parallel 2-D curves, such as catenaries, with a fixed-wing aircraft. Image features …