An unmanned aerial vehicle (UAV) landing method includes detecting, via one or more sensors on-board the UAV, a positional change of the UAV while the UAV is airborne; and generating, with aid of one or more processors on-board the UAV and in response to the detected positional change, one or more command signals to decelerate one or more rotor blades of the UAV, thereby causing the UAV to land autonomously.