Abstract: UAV data communication system is designed to control the UAV flight and the payloads. The basic working theory and main function structure of the system are introduced. Design principle based on basic function unit is presented to reach a modular and combinable system after detailed analysis of data communication system′s function and features. Flight tests show that the design meets the system specification and fulfils the data communication system function and feature requirements.

Key words: Unmanned aerial vehicles, Data communication, Command and control system