A New Scheme for UAV TTaC and Information Transmission System
Yongchuan Wang, Xijun Gao, Yongke Li, Qingmin Tian · 2015
The paper assume a new scheme for UAV TT&C and information transmission system, according to the function and performance requirement of UAV TT&C and information transmission system and the characteristic of ground-air wireless channel of UAV system, and combing with the key technologies of wireless communications, OFDM, SC-FDE, MIMO, Cooperative Communication and Cognitive Radio.The theory model frame and the qualitative performance analysis of the scheme are given.1 Introduction UAV integrated TT&C system was made in China on 1980's.The system function includes telecommand, telemetry, tracking and data transmission.It was a very advanced TT&C and information transmission system scheme then.From then on, a new UAV TT&C and information transmission system was set up every three to five years.Although the new system had ameliorated, the improvement of institution was still less.The requirements of dependability, effectiveness and security are higher with the appearance of new UAV and the complication of electromagnetism environmental of UAV war field.Recently, the wireless communication was growing by leaps and bounds, and the technologies of OFDM, SC-FDE, MIMO, cooperation communication and cognition radio were becoming more mature.They were considered as the key technologies of next generation wireless communication system or network generally, and also were applied in wireless communication or standard of civilian or military uses.The new way was provided by the present and development of the technologies for constructing new UAV TT&C and information transmission system.In the paper, according to the function and performance requirement of UAV TT&C and information transmission system and the characteristic of ground-air wireless channel of UAV system, and combing with the key technologies, a new UAV TT&C and information transmission scheme was assumed.The theory model frame of the scheme and the qualitative analysis of the performance were given. UAV TT&C and information transmission systemUAV TT&C and information transmission system which was composed of data-link and ground-control-station was key part of UAV system.It was used to achieve telecommand, telemetry, tracking location and load information transmission, and also could control the UAV remotely or get the real-time reconnaissance information.The performance and scale of UAV system were decided by the UAV TT&C and information transmission systems' to a great extent.The UAV TT&C and information transmission system which could afford high-speed data transmission dependability and also had the performance of strong survivability, anti-jamming and anti-intercept was differ from the common wireless communication.