Open Space For The Small Uav Data Link System

Nowadays, with the speedy development of UAV, how to achieve the exchange of information between plane and ground quickly and accurately is the key technology to UAV design. Compare with traditional communicational means, data link technology have many virtues. It can make communication safely and credibility. And this technology is the development trend of UAV technology.A new Air-ground Datalink System for the minitype UAV is studied and designed in this paper. The main work is presented as follow:1) An Air-ground Datalink System for the minitype UAV is designed. The design method is given in detail, including system design principle, system performance parameter, system structure, function module design and message process design.2) The communication protocol for the system is analyzed and researched. Two kinds of message mode of the protocol are analyzed and illuminated in detail. And according to the structure characteristic, transmission mode and checkout mode of the message, the coding and decoding soft is designed, and the program of the report parsing is completed.3) How to realize the ground information real-time and realizing display system by soft design is introduced. The principle and technique of designing human-computer interface have been discussed. A interface for Air-ground Datalink System has been designed which is powerful and use—friendly.4) The validity and feasibility of the UAV Datalink System we developed has been simulated via using the two COM ports of the computer.The successful exploiture of this Datalink System have a very important significance for practical application of the minitype UAV Datalink technology.