This 3D model illustrates a landing pad designed for drone return markings. The UAV hovers above a pad marked with an ‘H’, and the surrounding spiral pattern represents the communication or navigation signals between the UAV and the pad. This design embodies the technical principles of a precision landing system for UAVs, visualizing the positioning and navigation functions during landing. The model is suitable for UAV research and development, aerial photography, technology demonstrations, and simulation testing.