In recent years, visible light positioning (VLP) techniques have been gaining popularity in research. Among them, the scheme of using a camera as a receiver is more popular, and the technology ...

Unknown external disturbances and actuator failures significantly affect the performance and flight safety of quadrotor unmanned aerial vehicles (UAVs) during task execution. To address this challenge ...

President Trump is pulling a “reverse Nixon” and putting a wedge between Russia and China after his predecessor "drove" Beijing and Moscow together, US Chief of Protocol Monica Crowley ...