In recent years there has been increased interest in the development of lightweight rotor-based UAV platforms which may be deployed as single or multiple autonomous UAV systems in support of applications such as ground surveillance, search and rescue, environmental monitoring in remote areas, bridge inspection and aerial imaging of crops. With the increased complexity of the UAV platforms comes...

Consider a finite set of targets, with each target assigned a relative deadline, and each pair of targets assigned a fixed transit flight time. Given a flock of identical UAVs, can one ensure that every target is repeatedly visited by some UAV at intervals of duration at most the target’s relative deadline? TheCyclic-Routing UAV Problem (cr-uav) is the question of whether this task has a soluti...

This paper provides new results for the tracking control of a quadrotor unmanned aerial vehicle (UAV). The dynamics of the quadrotor UAV are expressed globally on the configuration manifold of the special Euclidean group, and we construct geometric controllers to track outputs that correspond to each of three flight modes, namely (1) almost global asymptotic tracking of the attitude of the quad...

The Unmanned Aerial Vehicle (UAV) industry has been rapidly growing over the last decade. New UAV are being developed for military applications and also for civil usage. There is a strong correlation between the mission of a UAV and the avionics necessary to implement it. For this reason, the design, development and verification of UAV avionics, including hardware and software architecture, hav...

The use of flight simulation tools to reduce the schedule, risk, and required amount of flight testing for complex aerospace systems is a well-recognized benefit of these approaches. However, some special challenges arise when one attempts to obtain these benefits for the development and operation of an Experimental Uninhabited Aerial Vehicle (UAV) system. These types of UAV systems are charact...

The Autonomous UAV Technologies Laboratory 1 at Linköping University, Sweden, has been developing fully autonomous rotor-based UAV systems in the miniand micro-UAV class. Our current system design is the result of an evolutionary process based on many years of developing, testing and maintaining sophisticated UAV systems. In particular, we have used the Yamaha RMAX helicopter platform (Fig. 1) ...

The paper presents the design of a mini-UAV attitude controller using the backstepping method. Starting from the nonlinear dynamic equations of the mini-UAV, by using the backstepping method, the author of this paper obtained the expressions of the elevator, rudder and aileron deflections, which stabilize the UAV, at each moment, to the desired values of the attitude angles. The attitude contro...

Recent researches show that unmanned aerial vehicle (UAV) can offer an efficient solution to achieve wireless connectivity with high mobility and low cost. This letter investigates the secrecy energy efficiency (SEE) in a multi-tier UAV-enabled communication network via a threshold-based access scheme and multi-antenna technique, where the UAV-enabled transmitters, legitimate receivers and eave...

Unmanned aerial vehicles (UAVs) have a great potential for improving the performance of wireless communication systems due to their wide coverage and high mobility. In this paper, we study a UAVenabled data collection system, where a UAV is dispatched to collect a given amount of data from a ground terminals (GT) at fixed location. Intuitively, if the UAV flies closer to the GT, the uplink tran...