Unmanned Aerial Vehicles (UAVs) offer a wide range of interesting military and commercial
applications at reduced costs. A couple of their more interesting characteristics include: They …

A quadrotor is a rotorcraft capable of hover, forward flight, and VTOL and is emerging as a
fundamental research and application platform at present with flexibility, adaptability, and …

To date, most quad-rotor aerial robots have been based on flying toys. Although such
systems can be used as prototypes, they are not sufficiently robust to serve as experimental …

Remote sensing has traditionally be done with satellites and manned aircraft. While these
methods can yield useful scientific data, satellites and manned aircraft have limitations in …

We describe a new configuration of fixed-pitch miniature robot rotorcraft that combines the
energetic efficiency of a helicopter and the mechanical simplicity of a quadrotor. The large …

In this article, we introduce an easy-to-implement sensorless controller specifically designed
for the regulation of the propellers of unmanned aerial vehicles (UAVs). As motivation, we …

The small rotor sizes of quadrotors and multirotors makes them intrinsically less energy
efficient than a traditional helicopter with a large single rotor. However, the quadrotor …

Virtually all quadrotors used in research weigh less than 2 kg, and carry payload measured
in hundreds of grams. To be useful platforms for expanded operations, these vehicles must …

Observer-based disturbance rejection holds substantial theoretical and practical relevance
in the field of control engineering, with numerous variants of disturbance observers already …

Multi-rotor actuator dynamics modeling spans from idealized to complex representations,
often simplifying actuator nonlinearity. In the context of aerial manipulation, precise actuation …